COMMENTS Variables
0D Variable UnitsData TypeBrief DescriptionFull Description
Additional: ADDITIONALString any additional information any additional information
Analysis code(s): ANAL_CODESString codes used for data analysis codes used for data analysis
Assumptions: ASSUMPTIONString main assumptions made in the analysis main assumptions made in the analysis
Contact person: CONTACTString contact person at the experiment contact person at the experiment
Date of analysis: ANAL_DATESString date of analysis date of analysis
Date of shot: SHOT_DATEString date of shot date of shot
Institution: INSTITUTIONString institution institution
Publication: PUBLICATIONString publication publication
Pulse number: SHOTString shot number shot number
Run number: RUN_NUMBERString run number run number
Shot description: DESCRIPTIONString summary of useful information describing the shot and giving the purpose of the experiment summary of useful information describing the shot and giving the purpose of the experiment
Tokamak: TOKAMAKString tokamak name tokamak name


0D Variables
0D Variable UnitsData TypeBrief DescriptionFull Description
AMIN mReal minor radius The horizontal plasma minor radius in meters from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX).
Normal level of accuracy is ASDEX (± 1%), D3D (± 0.5%), JET (± 3%), JFT2M (± 3%), PBXM (± 3%), PDX (± 3%).
AREA m^2Real poloidal cross sectional area Area of poloidal plasma cross section in m2 , ideally determined from an MHD equilibrium fit, or alternatively from the formula:
AREA = &pi &kappa AMIN2.
AUXHEAT -String auxiliary heating Type of auxiliary heating. Each scheme is labelled by:
NONE:No Auxiliary heating
NB:Neutral Beam Injection
IC:Ion Cyclotron Resonance Heating
EC:Electron Cyclotron Resonance Heating
LH:Lower hybrid
IBW:Ion Bernstein Waves.
This variable is set by concatenating the strings for each heating scheme which is operating: eg "NBIC" for combined NBI + ICRH. It is recommended that the concatenation order should follow the order of appearance of strings in the above table.
BEPDIA -Real absolute poloidal beta from diamagnetic loop Absolute corrected poloidal beta from diamagnetic loop
BEPMHD -Real absolute poloidal beta Absolute poloidal beta computed from the MHD equilibrium fit.
BETMHD -Real absolute toroidal beta Absolute toroidal beta computed from the MHD equilibrium fit.
BETNMHD -Real normalised toroidal beta Normalised toroidal beta computed from the MHD equilibrium fit. BETNMHD=100*BETMHD*AMIN(m)*BT(T)/IP(MA) = 108*BETMHD*AMIN*BT/IP
BGASA amuInteger mass number of beam gas Mass number of the neutral beam gas. Possible values are: 1 (Hydrogen), 2 (Deuterium), 3 (3He) or 4 (4He). & C
BGASA2 amuInteger mass number of 2nd beam gas (JET) Mass number of the second neutral beam gas (JET only). Possible values are: 1 (Hydrogen), 2 (Deuterium), 3(3He) or 4 (4He). & C
BGASZ -Integer charge number of beam gas Charge number of the neutral beam gas. Possible values are: 1 (Hydrogen or Deuterium) or 2 (Helium). & C
BGASZ2 -Integer charge number of 2nd beam gas (JET) Charge number of the second neutral beam gas (JET only). Possible values are: 1 (Hydrogen or Deuterium) or 2 (Helium). & C
BPFOOT TReal Flux surface averaged poloidal magnetic field at RFOOT Flux surface averaged poloidal magnetic field at RFOOT
BSOURCE -Integer main beam power fractions F1*10000+F2*100+F3 (F1 F2 F3 all to nearest %) The power fractions injected by neutral beam eg P1 = 80%, P2= 10% and P= 10% then BSOURCE = 801010.
BSOURCE2 -Integer auxiliary beam power fractions F1*10000+F2*100+F3 (F1 F2 F3 all to nearest %) The power fractions injected by neutral beam with the second source (JET only). For 89-90 data the possibilities for BSOURCE and BSOURCE2 are 781606 for 80kV D, 652114 for 140kV D, 990000 for 3He or 4He beams.
BT TReal vacuum toroidal magnetic field at geometric axis vacuum toroidal magnetic field at geometric axis: +ve BT is anti-clockwise when viewed from above
COCTR -Real fraction of beam power co-injected (ie parallel to plasma current) Fraction of beam power co-injected (ie parallel to plasma current), as compared to the total beam power injected. COCTR = P_co / (P_co + P_ctr) and lies between 0 and 1.
CONFIG -String Plasma configuration Plasma configuration. Possible values are:
SN: Single null (generic)
LSN: Lower single null
USN: Upper single null
DN: Double null
LIM: Limiter (generic)
TOP, BOT, OUT, IN: description of limiter position
IW: Inner wall
DATE -Integer shot date YYYYMMDD The date the shot was taken. The format is YYYYMMDD.
DELTA -Real mean triangularity The mean triangularity of the plasma boundary from an MHD equilibrium fit.
Normal level of accuracy is ASDEX (Na), D3D (± 10%), JET (±10%), JFT2M (± 10%), PBXM (± 25%), PDX (Na).
DELTA95 -Real mean triangularity at 95 % poloidal flux The mean triangularity of the surface which encloses 95 % of the poloidal flux from an MHD equilibrium fit.
DELTAL -Real lower triangularity The lower triangularity of the plasma boundary from an MHD equilibrium fit.
DELTAL95 -Real lower triangularity at 95 % poloidal flux The lower triangularity of the surface which encloses 95 % of the poloidal flux from an MHD equilibrium fit.
DELTAU -Real upper triangularity The upper triangularity of the plasma boundary from an MHD equilibrium fit.
DELTAU95 -Real upper triangularity at 95 % poloidal flux The upper triangularity of the surface which encloses 95 % of the poloidal flux from an MHD equilibrium fit.
DIPDT A/sReal Time derivative of plasma current in A/s Time derivative of plasma current in A/s
DIVMAT -String divertor material The material of the divertor tiles. Possible values are: SS for stainless steel, C or CC for carbon, TI1 or TI2 for titanium, BE for beryllium or C/BE for carbon at the top and beryllium at the bottom.
DNELDT m^-3/sReal time derivative of central line averaged electron density The time rate of change of NEL in m-3/s.
Normal level of accuracy is similar to NEL.
DNEVDT m^-3/sReal time derivative of volume averaged electron density The time rate of change of NEV in m-3/s.
DWDIA J/sReal Time derivative of WDIA. Time derivative of WDIA.
DWMHD J/sReal Time derivative of WMHD. Time derivative of WMHD.
DWTOT Js^-1Real time derivative of total plasma energy content Time rate of change of WTOT in Joules / s .
ECHFREQ HzReal ECH frequency ECH frequency in Hz
ECHLOC -String ECH launch location Location of ECH launch, IN identifies waves launched from the high field side or inside of the vessel and OUT is from the low field side.
ECHMODE -String mode of ECH waves Mode of ECH waves, O is ordinary and X is extraordinary.
ECHRLOC -Real ECH resonance layer radius (&rhon) ECH resonance layer radius (&rhon).
ENBI VReal neutral beam energy Neutral beam energy weighted by power in volts. This quantity is calculated from &sum EiPi/&sum Pi where Ei is the main beam energy for source i and Pi is the beam power for source i.
ENBI1 VReal Primary beam acceleration voltage in V. Primary beam acceleration voltage in V.
ENBI2 VReal Secondary beam acceleration voltage in V. Secondary beam acceleration voltage in V.
EVAP -String evaporated wall conditioning material The evaporated material used to cover the inside of the vessel. Possible values are:
BORO generic for boron
BOROA (B2H6 + CH4 + H2)
BOROB (B2H6 + H2)
BOROC (B2D6 + He)
CARB generic for carbon
CARBH (CH4 + D2)
TI for titanium
BE for beryllium
NONE for no evaporation.
FPERP -Real Fraction of beam power injected perpendicular as compared to the total beam power injected Fraction of beam power injected perpendicular as compared to the total beam power injected
GRADTE eV/mReal Electron temperature gradient on outboard mid-plane immediately inside RFOOT Electron temperature gradient on outboard mid-plane immediately inside RFOOT
GRADTI eV/mReal Ion temperature gradient on outboard mid-plane immediately inside RFOOT Ion temperature gradient on outboard mid-plane immediately inside RFOOT
H89P -Real Ratio of confinement time to ITER89P L-mode scaling law Ratio of confinement time to ITER89P L-mode scaling law
IBOOT AReal Total bootstrap current. Total bootstrap current, calculated by a neoclassical code.
IBWFREQ HzReal IBW frequency Frequency of IBW in Hz.
ICANTEN -String ICRH antenna phasing Antenna phasing. Possible Values are DIPOLE or MONOPOLE.
ICFREQ HzReal ICRH frequency Frequency of ICRH waves in Hz.
ICSCHEME -String ICRH heating scheme ICRH heating scheme. Possible Values: HMIN for H minority, HE3MIN for 3He minority or H2NDHARM for 2nd harmonic H heating respectively.
IGRADB -Integer ion gradB drift towards/away (1/-1) from Xpoint Indicates when CONFIG = SN whether the ion gradB-drift is towards (1) or pointing away from (-1) the X-point.
INDENT mReal indentation Indentation of the plasma determined from an MHD equilibrium fit.
Normal level of accuracy is ASDEX (Na), D3D (Na), JET (Na), JFT2M (Na), PBXM (± 15%), PDX (Na).
IP AReal plasma current plasma current: +ve IP is anti-clockwise when viewed from above
ISEQ -String parameter scan identifier Parameter scan identifier
Possible options for ASDEX are:
ISEQExplanation
NONENo particular scan
G1Comparison shots for Helium program
NE1Density variation
HT1Search for high confinement times
EF11Search for long ELM-free periods
SP11

Spectroscopic investigations
HBE1High beta investigations, Ti profile measurements
HBE2 High beta investigations, Ti profile measurements
HBE3High beta investigations, Ti profile measurements
P1PNBI scan
P2PNBI scan
QC1P3QCYL and PNBI scan
BT1BT scan
BT2 P4 BT and PNBI scan
BT3BT scan
BT4BT scan
BT5BT scan
BT6BT scan
BT7BT scan

Possible options for JFT2M are:
ISEQ

Explanation
NONENo particular scan
AM1AMIN scan with Ip = 0.22MA (same Q95)
IP11st Ip scan with Bt = 1.25T
IP22nd Ip scan (Hydrogen)
IP33rd Ip scan (Deuterium)
BS1Scan of 801010 (CO or CTR) and 603010 (CO or CTR)
BT1Bt scan with Ip = 0.16MA
BT2Bt scan with Ip = 0.21MA
EB1ENBI scan with BSOURCE = 603010
EB2ENBI scan with BSOURCE = 801010
G1Intense gas puff for comparison with H pellet H mode
G2Intense gas puff for comparison with D pellet H mode
G3IP22nd Ip scan (Hydrogen) with intense gas puffing
G4IP33rd Ip scan (Deuterium) with intense gas puffing
IE1IEML and PNBI scan looking for steady state H mode region
P1PNBI scan by CO or CTR with Ip = 0.25MA
P2PNBI scan by CO + CTR with Ip = 0.24MA
P3IP4NE1PNBI , IP and NEL scan in Hydrogen plasma
P4IP5NE2PNBI , IP and NEL scan in Deuterium plasma
PE1Hydrogen pellet into Hydrogen plasma
PE2Deuterium pellet into Deuterium plasma
XP1XPLIM scan with Ip = 0.24MA

No options available for D3D, JET, PBXM and PDX.
ITB -String ITB flag Flag for ITB conditions with possible values: "ITB" if an ITB is present, "PREITB" immediately before the ITB onset, and "NOITB" if no ITB is present
ITBTIME sReal Time of ITB triggering. Time of ITB triggering.
ITBTYPE -String Type of ITB. Type of ITB with possible values: "NONE", "TI", "TE", "NE", and concatenations of these (eg "TITENE")
KAPPA -Real plasma elongation The plasma elongation determined from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX). Normal level of accuracy is ASDEX (± 1%), D3D (± 1%), JET (± 5%), JFT2M (± 10%), PBXM (± 10%), PDX (k = 1 for all records, ± 10%).
KAPPA95 -Real elongation at 95 % poloidal flux Elongation of the surface which encloses 95 % of the poloidal flux from an MHD equilibrium fit.
LHFREQ HzReal LH frequency Frequency of LH waves in Hz.
LHNPAR -Real LH parallel mode number LH parallel mode number.
LI -Real internal inductance Internal plasma inductance (ideally from MHD equilibrium):
li=2 &int Bp2dV / ( &mu02 Ip2 Rgeo )
LIMMAT -String limiter material The material of the limiters. Possible valuesare: BE for beryllium or C for carbon.
NE0 m^-3Real central electron density Central electron density in m-3.
NE95 m^-3Real electron density at 95% poloidal flux surface electron density at 95% poloidal flux surface
NEFOOT m^-3Real electron density at an ITB foot electron density at an ITB foot
NEL m^-3Real central line averaged electron density Central line average electron density in m-3 from interferometer.
For JET NEL has been approximated by:
ohmic: NEL ~ exp {2.931 +0.873 log (NEV) + 0.064 log (NEØ)}
H-mode: NEL ~ exp {3.745 +0.825 log (NEV) + 0.092 log (NEØ)} If no measurement is available, the variable NELFORM indicates if NEL is measured or approximated.
Normal level of accuracy is ASDEX (± 2%), D3D (± 2 x 1018 m-3), JET (± 8%), JFT2M (± 2%), PBXM (± 5%), PDX (± 5%).
NESHOULD m^-3Real electron density at an ITB shoulder electron density at an ITB shoulder
NEV m^-3Real volume averaged electron density Volume average electron density in m-3.
NFASTnA amuReal mass number of nth fast ion species <=> 2D variable NFASTn mass number of nth fast ion species corresponding to 2D variable NFASTn with 1 &le n &le 9
NFASTnZ -Real atomic number of nth fast ion species <=> 2D variable NFASTn atomic number of nth fast ion species corresponding to 2D variable NFASTn with 1 &le n &le 9
NMnA amuReal mass number of nth thermal ion species <=> 2D variable NMn mass number of thermal ion species corresponding to 2D variable NMn with 1 &le n &le 9
NMnZ -Real atomic number of nth thermal ion species <=> 2D variable NMn atomic number of thermal ion species corresponding to 2D variable NMn with 1 &le n &le 9
PECH WReal ECH power coupling to plasma ECH power in watts coupled to the plasma. Zero if no ECH is applied.
Normal level of accuracy is D3D (± 10%). ASDEX, JET, JFT2M,PBXM, PDX:  Na.
PELLET -String Pellet material information and side of launch NONE if no pellets
H/D/LI for the pellet material
concatenated with injection field side (HFS, LFS)
PERFDUR sReal duration of the high performance phase duration of the high performance phase, defined as the time (in s) during which the discharge has >85% of its maximum stored energy. This indicates how stationary the discharge is.
PGASA amuReal mean mass number of main plasma ions Mean mass number of the plasma ions. Values typically ranging from 1.0 to 3.0 in hydrogenic plasmas, and up to 4.0 in He plasmas
PGASZ -Real mean charge number of main plasma ions Mean charge number of the main plasma ions. Values typically ranging from 1.0 in hydrogenic plasmas to 2.0 in Helium.
PHASE -String plasma phase The phase of the discharge at TIME. Possible values are:
OHM : Ohmic
L : L-mode
LHLHL : H-mode with frequent L H transitions
H : ELM-free H-mode
HSELM : H-mode with small ELMs
HGELM : H-mode with large ELMs
HELM : H-mode with ELMs (generic)
HGELMH : H-mode with high frequency large ELMs
HYB : Hybrid regime
VH : VH-mode
PEP : PEP mode
PIBW WReal IBW power coupling to plasma IBW power in watts coupled to the plasma. Zero if no IBW is applied.
PICRH WReal ICRH power coupling to plasma ICRH power in watts coupled to the plasma. Zero if no ICRH is applied.
Normal level of accuracy is JET (± 10%). ASDEX, D3D, JFT2M, PBXM, PDX: Na.
PIMPA amuReal mass number of main impurity Mass number of the plasma main impurity. Possible values are: 8 (Beryllium), 10 (Boron), 12 (C), etc ... & C
PIMPZ -Real charge number of main impurity Charge number of the plasma main impurity. Possible values are: 4 (Beryllium), 5 (Boron), 6(C), etc ... & C
PINJ WReal power injected by main neutral beam The injected neutral beam power with beam of (BGASA, BGASZ) that passes into the torus in watts. Zero if no beams are on. Notice total injected neutral beam power is PINJ + PINJ2.
Normal level of accuracy is ASDEX (± 10%), D3D (± 10%), JET (± 6%), JFT2M (± 5%), PBXM (±5%), PDX (± 10%).
PINJ2 WReal power injected by auxiliary neutral beam The injected neutral beam power from a second source with beam of (BGASA2, BGASZ2) in watts (JET only). Zero if no beams of second source are on.
Normal level of accuracy is JET (± 6%). ASDEX, D3D, JFT2M, PBXM, PDX: Na.
PL WReal uncorrected loss power Estimated Loss Power not corrected for charge exchange and unconfined orbit losses in watts.
ASDEX: PL = POHM + PNBI - DWDIA/3 - 2*DWMHD/3
D3D: PL = POHM + PNBI + PECH - DWMHD
JET: PL = POHM + PNBI + PICRH - DWDIA
JFT2M: PL = POHM + PNBI - DWDIA
PBXM: PL = POHM + PNBI - DWMHD
PDX: PL = POHM + PNBI - DWMHD
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
PLH WReal LH power coupling to plasma LH power in watts coupled to the plasma. Zero if no LH is applied.
PLTH WReal loss power with correction for cx and orbit losses Estimated Loss Power corrected for charge exchange and unconfined orbit losses in Watts, i.e. PLTH = PL - PFLOSS.
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
PNBI WReal total injected beam power minus shine through Total injected neutral beam power minus shine through in watts. Zero if no beams are on.
Normal level of accuracy is ASDEX (±  10%),D3D (± 10%), JET (± 10%), JFT2M (<± 10%), PBXM (± 10%), PDX (± 10%).
POHM WReal Ohmic power Total ohmic power in watts.
ASDEX: Determined from max {0, VSURF*IP}, (Ohmic: ± 5% H: ± 50%).
D3D: Calculated using CB10Ip2RGEO2/(WTne). B10 is the central visible bremsstrahlung signal. When ne is determined from the radial (vertical) CO2chord, C is equal to 1.03*10-19 (9.92*10-20) (± 15%).
JET: Corrected for inductance effects (± 20%).
JFT2M: Calculated as VSURF*IP (± 10%).
PBXM: Calculated as VSURF*IP (± 50%).
PDX: Calculated using VSURF and IP corrected for inductance effects (± 20%).
PRAD WReal radiated power Total radiated power in watts as measured by Bolometer.
Normal level of accuracy is ASDEX (± 20%), D3D (± 15%), JET (± 10 15%), JFT2M (± 10 - 20%), PBXM (± < 25%), PDX (Na).
PUMP -String Status of divertor pump Status of divertor pump ('ON' or 'OFF')
Q95 -Real safety factor at 95% poloidal flux The plasma safety factor from an MHD equilibrium fit evaluated at the flux surface that encloses 95% of the total poloidal flux. For ASDEX Q95 = qcyl(1 + (AMIN/RGEO)2 (1 + 0.5 BEILI22)) with qcyl = 107 (BT/IP) (AMIN2/RGEO) (1 + KAPPA2)/2. 
Normal level of accuracy is ASDEX (± 15%), D3D (± 3%),JET (± 10%), JFT2M (± 10%) PBXM(±10%), PDX (± 10%).
QAXIS -Real central safety factor on the magnetic axis central safety factor on the magnetic axis
QFOOT -Real safety factor at an ITB foot safety factor at an ITB foot
QMIN -Real Minimum safety factor Minimum safety factor
RFOOT -Real &rho corresponding to the ITB foot &rho corresponding to ITB foot
RGEO mReal geometric axis The plasma geometrical major radius in meters, from an MHD equilibrium fit, defined as the average of the minimum and the maximum radial extent of the plasma at the elevation of the magnetic axis.
Normal level of accuracy is ASDEX (± 0.5%), D3D (± 0.6%) JET (± 1%), JFT2M (± 0.75%), PBXM (± 0.65%), PDX (± 0.75%).
RICRES -Real Normalised minor radius (&rho) of ICRH deposition. Normalised minor radius (&rho) of ICRH deposition.
RLHDEP -Real Normalised minor radius (&rho) of lower hybrid deposition. Normalised minor radius (&rho) of lower hybrid deposition.
RMAG mReal magnetic axis The major radius of the magnetic axis in meters from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX).
Normal level of accuracy is ASDEX (±  0.5%), D3D (± 1%), JET (± 2%), JFT2M (±2%), PBXM (± 1%), PDX (± 4%).
RQMIN -Real &rho corresponding to the minimum in safety factor, QMIN. &rho corresponding to the minimum in safety factor, QMIN. ( &rho is the normalised flux surface label proportional to the square root of the toroidal flux )
RSHOULD -Real &rho corresponding to an ITB shoulder &rho corresponding to an ITB shoulder
RSMIN -Real &rho of the surface with minimum magnetic shear &rho of the surface with minimum magnetic shear
SELDB -Integer Sequence of binary flags stored as a 10 digit integer: abcdefghij. These digits carry the following information
a 1 if MSE available in equilibrium reconstruction, 0 otherwise
b 1 if profile data is available, 0 otherwise
c-jno definitions at present, so set to 0
SEPLIM mReal minimum separation between separatrix and limiter/wall The minimum distance between the separatrix flux surface and either the vessel wall or limiters in meters from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX).
Normal level of accuracy is ASDEX (± 1 cm), D3D (± 0.5 cm), JET (± 1 cm), JFT2M (± 1 cm), PBXM (± 0.5 cm), PDX (± 1 cm).
SFOOT -Real magnetic shear at ITB foot magnetic shear (defined as s=&rho/q dq/d&rho where &rho is the square root normalised toroidal flux coordinate) at ITB foot
SHEAR -String sign of magnetic shear inside ITB radius General sign of the magnetic shear inside ITB radius with allowed values: "NE", "WE", "PO" for negative, weak and positive shear respectively
SHOT -String shot # The shot from which the data are taken.
SPLASMA m^2Real area of outermost magnetic surface Area of outermost magnetic surface in m2 ideally determined from an MHD equilibrium fit, but otherwise from the simple formula:
AREA=4&pi AMIN RGEO ((1+&kappa2 )/2))0.5 .
STATE -String plasma state ('STEADY' or 'TRANS') Description of the plasma state for the present time slice:
STEADY : All global paramaters are in steady state
TRANS : At least one parameter is evolving
TAUDIA sReal Total diamagnetic energy confinement time. Total diamagnetic energy confinement time in seconds. TAUDIA=WDIA/(POHM+PNBI+PICRH+PECH+PLH+PIBW-DWDIA)
TAUP sReal Particle confinement time in s. Particle (electron) confinement time in s.
TAUTH sReal thermal energy confinement time Estimated thermal energy confinement time (WTH/PLTH) in seconds.
TAUTH1 sReal Thermal energy confinement time. Thermal energy confinement time in seconds.
TAUTH1=WKIN/(POHM+PNBI+PICRH+PECH+PLH+PIBW-DWKIN)
where DWKIN is the time derivative of the stored thermal energy as estimated from kinetic measurements
TAUTOT sReal total energy confinement time Estimated total energy confinement time (WTOT/PLTH) in seconds.
TE0 eVReal central Te The electron temperature at the magnetic axis in eV.
ASDEX: From 16 radial YAG measurements under the same profile assumptions as for TEV (± 10%).
D3D: Determined by a spline temperature profile fit to the Thomson scattering data (± 10%).
JET: From ECE temperature profile (± 10%).
JFT2M, PBXM, PDX: Na.
TE95 eVReal electron temperature at 95% poloidal flux surface electron temperature at 95% poloidal flux surface
TEFOOT eVReal electron temperature at the ITB foot electron temperature at the ITB foot
TESHOULD eVReal electron temperature at the ITB shoulder electron temperature at the ITB shoulder
TEV eVReal volume averaged electron temperature Volume average electron temperature in eV.
TI0eVReal central Ti The ion temperature at the magnetic axis in eV.
D3D: Determined by a spline temperature profile fit to the charge exchange recombination data (± 10%).
JET: From Crystal X-ray diagnostic (±10%) or from charge exchange recombination spectroscopy (± 10%).
ASDEX, JFT2M, PBXM, PDX: Na.
TI95 eVReal ion temperature at 95% poloidal flux surface ion temperature at 95% poloidal flux surface
TIFOOT eVReal ion temperature at the ITB foot ion temperature at the ITB foot
TIME sReal time Time during the shot at which the data are taken in seconds.
TISHOULD eVReal ion temperature at the ITB shoulder ion temperature at the ITB shoulder
TIV eVReal volume averaged ion temperature Volume average ion temperature in eV.
TOK -String tokamak This variable designates which tokamak has supplied the data. For example: ASDEX, D3D, JET, JFT2M, PBXM... (10 ASCII characters).
TRTIME -String Flag for transient or steady enhanced core confinement modes. Flag for transient or steady enhanced core confinement modes with allowed values: "SS" where the enhanced core confinement lasts for more than 5 energy confinement times and "TR" where the enhancement is more transient.
UPDATE -Integer last update YYYYMMDD The date of the most recent update for any variable listed in the database. The format is YYYYMMDD (Year-Month-Day).
VOL m^3Real plasma volume The plasmas volume in m3 determined from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX).
Normal level of accuracy is ASDEX (± 3%), D3D (± 3%),JET (± 6%), JFT2M (± 5%), PBXM (± 10%), PDX (±5%).
VSURF VReal loop voltage The loop voltage at the plasma boundary in volts.
Normal level of accuracy is ASDEX (± 5%), D3D (Na),JET (± 5%), JFT2M (± 5%), PBXM (±50%), PDX (± 10%).
VTO95 m/sReal Toroidal velocity at 95% poloidal flux surface in m/s. Toroidal velocity at 95% poloidal flux surface in m/s.
VTOAXIS m/sReal Toroidal velocity on axis in m/s. Toroidal velocity on axis in m/s.
VTOFOOT m/sReal Toroidal velocity at the ITB foot in m/s. Toroidal velocity at the ITB foot in m/s.
WALMAT -String wall material The material of the vessel wall. Possible values are: SS for stainless steel, IN for inconel, IN/C for Inconel with carbon, CSS for (partly) Carbon on stainless steel, or C for generic carbon.
WDIA JReal Total plasma energy in Joules as determined from the diamagnetic loop. Total plasma energy in Joules as determined from the diamagnetic loop.
WFANI -Real fraction of fast ion energy in perpendicular direction Estimate of fraction of perpendicular fast ion energy as compared to the totalfast ion energy due to NBI.
If WFPER and WFPAR are available WFANI = WFPER/(WFPER + WFPAR), otherwise:
ASDEX: From regression analysis based on 176 FREYA runs:
C NEL0.04(NE0(ZEFF-1))0.045/ENBI0.14 for H beam and C'NEL0.12(NE0(ZEFF-1))0.020/ENBI0.14 for D beam where C and C' are estimated constants depending on the target gas. Missing central densities are interpolated by regression of the available central densities in the database against IP, BT, NEL, NEV, EVAP and PINJ. If not measured, ZEFF is assumed to be 3 for EVAP=NONE, 2.5 for carbonised shots and 1.5 for boronised shots.
D3D: The fast ion anisotropy is calculated only from geometry; the angles of the beam center line are known relative to the geometric axis of the tokamak and from this the perpendicular and parallel components can be determined.
JET: 1.16*10-2NEL0.11/ENBI0.07.
Normal level of accuracy is ASDEX (± 7%), D3D (± 50%),JET (± 50%), JFT2M, PBXM, PDX: Co.

WFICRH JReal perpendicular fast ion energy content during ICRH Estimate of the perpendicular fast ion energy content during ICRH heating in Joules. It is given by 4/3 (DWDIA - DWMHD), where DWDIA and DWMHD is the increase in energy due to ICRH. Zero if no ICRH.
Normal level of accuracy is JET (± 50%). ASDEX, D3D, JFT2M, PBXM, PDX: Na
WKIN JReal Total thermal plasma energy in Joules as determined from kinetic measurements. Total thermal plasma energy in Joules as determined from kinetic measurements.
WMHD JReal Total plasma energy in Joules as determined from an MHD equilibrium fit. Total plasma energy in Joules as determined from an MHD equilibrium fit.
WTH JReal thermal plasma energy content Estimated thermal plasma energy content in Joules.
ASDEX: WTH = WDIA - 1.5*WFANI*WFFORM.
D3D: WTH = WMHD - WFFORM.
JET: WTH = WDIA - 1.5 (WFPER + WFICRH). If WFPER is missing WFPER is replaced by WFANI* WFFORM.
JFT2M: WTH = WDIA/3 + 2*WMHD/3 - WFFORM.
PBXM: WTH = WMHD - 0.75*WFPER - 1.5*WFPAR.
PDX: WTH = WMHD - 0.75*WFPER - 1.5*WFPAR.
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
WTOT JReal total plasma energy content Estimated total plasma energy content in Joules.
ASDEX: WTOT = WTH + WFFORM.
D3D: WTOT = WMHD
JET: WTOT = WTH + WFPER + WFPAR + WFICRH.
If WFPER and WFPAR are missing they are replaced by WFFORM.
JFT2M: WTOT = WTH + WFFORM
PBXM: WTOT = WTH + WFPER + WFPAR
PDX: WTOT = WTH + WFPER + WFPAR
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
XPLIM mReal minimum separation between Xpoint and limiter/wall The minimum distance between the X-point and either the vessel walls or limiters in meters from an MHD equilibrium fit. The value is positive if X-point is inside either the vessel wall or limiters.
Normal level of accuracy is ASDEX (Na), D3D (± 3 cm), JET (± 5 cm), JFT2M (± 3 cm), PBXM (± 5 cm), PDX (± 5 cm).
ZEFF -Realline averaged effective charge Line average plasma effective charge determined from visible bremsstrahlung.
Normal level of accuracy is ASDEX (± 10%), D3D (± 20%), JET (± 30%). JFT2M, PBXM, PDX: Na.
ZMAG mReal Vertical position of magnetic axis in m Vertical position of magnetic axis in m


1D Variables
1D Variable UnitsData TypeBrief DescriptionFull Description
AMIN mReal minor radius The horizontal plasma minor radius in meters from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX).
Normal level of accuracy is ASDEX (± 1%), D3D (± 0.5%),JET (± 3%), JFT2M (± 3%), PBXM (± 3%), PDX (± 3%).
BT TReal vacuum toroidal field at geometric axis The vacuum toroidal magnetic field in Tesla at RGEO determined from the TF coil current. Positive IP is anti-clockwise when viewed from above.
Normal level of accuracy is ± 1% for all machines.
DELTA -Real mean triangularity The mean triangularity of the plasma boundary from an MHD equilibrium fit.
Normal level of accuracy is ASDEX (Na), D3D (± 10%), JET (±10%), JFT2M (± 10%), PBXM (± 25%), PDX (Na).
DELTAL -Real lower triangularity The lower triangularity of the plasma boundary from an MHD equilibrium fit.
DELTAU -Real upper triangularity The upper triangularity of the plasma boundary from an MHD equilibrium fit.
IBOOT AReal bootstrap current Estimated total bootstrap current (in A).
INDENT mReal indentation Indentation of the plasma determined from an MHD equilibrium fit.
Normal level of accuracy is ASDEX (Na), D3D (Na), JET (Na),JFT2M (Na), PBXM (± 15%), PDX (Na).
IP AReal plasma current The plasma current in amperes determined from an external Rogowski loop with vessel current subtraction. Positive IP is anti-clockwise when viewed from above.
Normal level of accuracy is ASDEX (± 2%), D3D (± 1%), JET (± 1%), JFT2M (± 1%), PBXM (± 1%), PDX (± 1%).
KAPPA -Real elongation The plasma elongation determined from an MHD equilibrium fit or a formula based on a number of equilibria (ASDEX). Normal level of accuracy is ASDEX (± 1%), D3D (± 1%),JET (± 5%), JFT2M (± 10%), PBXM (± 10%),PDX (k = 1 for all records, ±10%).
LI -Real internal inductance Internal plasma inductance:
li=2 ∫ Bp2dV / ( μ02 Ip2 Rgeo )
NE0 m^-3Real central electron density Central electron density in m-3.
NEL m^-3Real line averaged electron density Central line average electron density in m-3 from interferometer.
For JET NEL has been approximated by
ohmic: NEL ∝ exp {2.931 +0.873 log (NEV) + 0.064 log (NE0)}
H-mode: NEL ∝ exp {3.745 + 0.825 log (NEV) + 0.092 log (NE0)}
if no measurement is available. The variable NELFORM indicates if NEL is measured or approximated.
Normal level of accuracy is ASDEX (± 2%),D3D (± 2 x 1018 m-3),JET (± 8%), JFT2M (± 2%), PBXM (± 5%), PDX(± 5%).
NMAIN0 m^-3Real central main ion density Central main ion density in m-3.
PECH WReal coupled ECH power ECH power in watts coupled to the plasma. Zero if no ECH is applied.
Normal level of accuracy is D3D (± 10%). ASDEX, JET, JFT2M,PBXM, PDX:  Na.
PFLOSS WReal lost NBI power Neutral beam power in watts that is lost from the plasma through charge exchange and unconfined orbits.
ASDEX: From fits to FREYA code results, (± 30%)
D3D: PABS exp (3.3 - IP/106)/100 (± 30%).
JET: PINJ exp (3.35 - 0.667 | IP |/106 -0.2 NEL/1019)/100  (± 50%).
JFT2M: From fits to Monte Carlo code results (± 20%).
PBXM: From a fits to the TRANSP code results (± 20%).
PDX: From a fits to the TRANSP code results (± 30%).
PFUSION WReal DT fusion power Total fusion power due to DT reactions in W.
PHIA WbReal toroidal flux Total toroidal flux in Weber enclosed by the plasma
PIBW WReal coupled IBW power IBW power in watts coupled to the plasma. Zero if no IBW is applied.
PICRH WReal coupled ICRH power ICRH power in watts coupled to the plasma. Zero if no ICRH is applied.
Normal level of accuracy is JET (± 10%). ASDEX, D3D, JFT2M, PBXM, PDX: Na.
PLH WReal coupled LH power LH power in watts coupled to the plasma. Zero if no LH is applied.
PNBI WReal total injected NBI power Total injected neutral beam power minus shine through in watts. Zero if no beams are on.
Normal level of accuracy is ASDEX (±  10%),D3D (± 10%), JET (± 10%), JFT2M (<± 10%), PBXM (± 10%), PDX (± 10%).
POHM WReal Ohmic power Total ohmic power in watts.
ASDEX: Determined from max {0, VSURF*IP}, (Ohmic: ± 5% H: ± 50%).
D3D: Calculated using CB10Ip2RGEO2/(WTne). B10 is the central visible bremsstrahlung signal. When ne is determined from the radial (vertical) CO2 chord, C is equal to 1.03*10-19 (9.92*10-20) (± 15%).
JET: Corrected for inductance effects (± 20%).
JFT2M: Calculated as VSURF*IP (± 10%).
PBXM: Calculated as VSURF*IP (± 50%).
PDX: Calculated using VSURF and IP corrected for inductance effects (± 20%).
PRAD WReal total radiated power Total radiated power in watts as measured by Bolometer.
Normal level of accuracy is ASDEX (± 20%), D3D (±15%), JET (± 10 15%), JFT2M (± 10 - 20%),PBXM (± < 25%), PDX (Na).
Q95 -Real safety factor at 95% poloidal flux The plasma safety factor from an MHD equilibrium fit evaluated at the flux surface that encloses 95% of the total poloidal flux. For ASDEX Q95 = qcyl(1 + (AMIN/RGEO)2(1 + 0.5 BEILI22)) with qcyl = 107 (BT/IP)(AMIN2/RGEO) (1 + KAPPA2)/2. 
Normal level of accuracy is ASDEX (± 15%), D3D (± 3%), JET (± 10%), JFT2M (± 10%) PBXM (± 10%), PDX (± 10%).
RGEO mReal geometric axis The plasma geometrical major radius in meters, from an MHD equilibrium fit, defined as the average of the minimum and the maximum radial extent of the plasma.
Normal level of accuracy is ASDEX (± 0.5%), D3D (±0.6%) JET (± 1%), JFT2M (± 0.75%),PBXM (± 0.65%), PDX (± 0.75%).
TE0 eVReal core electron temperature The electron temperature at the magnetic axis in eV.
ASDEX: From 16 radial YAG measurements under the same profile assumptions as for TEV (± 10%).
D3D: Determined by a spline temperature profile fit to the Thomson scattering data (± 10%).
JET: From ECE temperature profile (± 10%).
JFT2M, PBXM, PDX: Na.
THNT s^-1Real thermal neutron yield Total thermal neutron yield in s-1.
TI0 eVReal core ion temperature The ion temperature at the magnetic axis in eV.
D3D: Determined by a spline temperature profile fit to the charge exchange recombination data (± 10%).
JET: From Crystal X-ray diagnostic (±10%) or from charge exchange recombination spectroscopy (± 10%).
ASDEX, JFT2M, PBXM, PDX: Na.
VLOOP VReal measured loop voltage Measured loop voltage at the coil location in
VSURF VReal plasma surface loop voltage The loop voltage at the plasma boundary in volts.
Normal level of accuracy is ASDEX (± 5%), D3D (Na), JET (± 5%), JFT2M (± 5%), PBXM (±50%), PDX (± 10%).
WTH JReal thermal plasma energy content Estimated thermal plasma energy content in Joules.
ASDEX: WTH = WDIA - 1.5*WFANI*WFFORM.
D3D: WTH = WMHD - WFFORM.
JET: WTH = WDIA - 1.5 (WFPER + WFICRH). If WFPER is missing WFPER is replaced by WFANI* WFFORM.
JFT2M: WTH = WDIA/3 + 2*WMHD/3 - WFFORM.
PBXM: WTH = WMHD - 0.75*WFPER - 1.5*WFPAR.
PDX: WTH = WMHD - 0.75*WFPER - 1.5*WFPAR.
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
WTOT JReal total plasma energy content Estimated total plasma energy content in Joules.
ASDEX: WTOT = WTH + WFFORM.
D3D: WTOT = WMHD
JET: WTOT = WTH + WFPER + WFPAR + WFICRH.
If WFPER and WFPAR are missing they are replaced by WFFORM.
JFT2M: WTOT = WTH + WFFORM
PBXM: WTOT = WTH + WFPER + WFPAR
PDX: WTOT = WTH + WFPER + WFPAR
ASDEX, D3D, JET, JFT2M, PBXM, PDX: Co.
ZEFF -Real line averaged effective charge Line average plasma effective charge determined from visible bremsstrahlung.
Normal level of accuracy is ASDEX (± 10%),D3D (± 20%). JET (± 30%). JFT2M, PBXM, PDX: Na.


2D Variables
2D Variable UnitsData TypeBrief DescriptionFull Description
BPOL TReal flux surface averaged poloidal magnetic field Surface averaged poloidal magnetic field in Tesla.
CHIE m^2/sReal estimated electron thermal diffusivity Estimated thermal electrons heat diffusivity in m2 s-1.
CHII m^2/sReal estimated ion thermal diffusivity Estimated thermal ions heat diffusivity in m2 s-1.
CURBS A/m^2Real bootstrap current profile Bootstrap current profile in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURECH A/m^2Real ECH driven current profile Current drive profile by ECH in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURICRH A/m^2Real ICRH driven current profile Current drive profile by ICRH in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURLH A/m^2Real LH driven current profile Current drive profile by LH in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURNBI A/m^2Real NBI driven current profile Current drive profile by beams in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURTOT A/m^2Real total current density Total current density in A m-2. (+ve value indicates anti-clockwise current when viewed from above)
CURTOTEB A/m^2Real error in total current density Error bars on total current density in A m-2.
Provided on same radial positions as CURTOT.
DELTAR -Real mean triangularity The mean triangularity of the plasma boundary from an MHD equilibrium fit.
Normal level of accuracy is ASDEX (Na), D3D (± 10%), JET (±10%), JFT2M (± 10%), PBXM (± 25%), PDX (Na).
DELTARL -Real lower triangularity The lower triangularity of the plasma boundary from an MHD equilibrium fit.
DELTARU -Real upper triangularity The upper triangularity of the plasma boundary from an MHD equilibrium fit.
DNER m^-3/sReal time derivative of electron density Term ∂ ne(ρ,t) / ∂ t of the electron particles conservation equation in m-3s-1.
DWER W/m^3Real time derivative of electron thermal energy density Term ∂ We(ρ,t) / ∂ t of the energy conservation equation in W/m3.
DWIR W/m^3Real time derivative of ion thermal energy density Term ∂ Wi(ρ,t) / ∂ t of the energy conservation equation in W/m3, where i is the main thermal ion.
GRHO1 m^-1Real ⟨ | ∇ ρ | ⟩ Metric quantity: ⟨ | ∇ ρ | ⟩ where ρ is the square root of the normalised toroidal flux
GRHO2 m^-2Real ⟨ | ∇ ρ | 2 Metric quantity ⟨ | ∇ ρ | 2 ⟩, where ρ is the square root of the normalised toroidal flux
INDENTR mReal indentation Averaged indentation of the magnetic surface.
IOTAVAC -Real stellarator (not tokamaks) vacuum rotational transform Stellarator vacuum rotational transform.
Omitted for Tokamaks.
KAPPAR -Real elongation Average elongation of the magnetic surface.
MOM Ns/m^2Real total toroidal angular momentum density toroidal angular momentum density. +ve MOM is anti-clockwise when viewed from above
NE m^-3Real interpolated electron density Fitted electron density profile in m-3.
NEEB m^-3Real error in interpolated electron density Error bars on the fitted electron density profile in m-3.
Provided on the same radial positions as NE.
NEXP m^-3Real experimental electron density Measured electron density profile in m-3.
NEXPEB m^-3Real error in experimental electron density Error bars on the measured electron density profile in m-3.
NEXPEB is added to NEXP for the upper limit.
NEXPEB is subtracted from NEXP for the lower limit.
Provided on the same radial positions as NEXP.
NFASTn m^-3Real interpolated nth fast ion density nth fast ion density profile in m-3. n<9
NHYA -Real mean mass number of hydrogenic ion species mean mass number of hydrogenic ion species (nh + 2 nd + 3 nt) / (nh + nd + nt)
NM1 m^-3Real interpolated main ion density Main ion density profile in m-3.
NM1EB m^-3Real error in interpolated main ion density Error bars on main ion density profile in m-3.
NM1XP m^-3Real experimental main ion density Measured main ion density profile in m-3.
NM1XPEB m^-3Real error in experimental main ion density Error bars on measured main ion density profile in m-3.
NM2 m^-3Real interpolated 2nd main ion density Secondary main ion density profile in m-3.
For instance helium injection into deuterium plasma.
NM2EB m^-3Real error in interpolated 2nd main ion density Error bars on secondary main ion density profile in m-3.
NM2XP m^-3Real experimental 2nd main ion density Measured secondary main ion density profile in m-3.
NM2XPEB m^-3Real error in experimental 2nd main ion density Error bars on measured secondary main ion density profile in m-3.
NM3 m^-3Real interpolated 3rd main ion density Third main ion density profile in m-3.
For instance helium injection into deuterium plasma.
NM3EB m^-3Real error in interpolated 3rd main ion density Error bars on third main ion density profile in m-3.
NM3XP m^-3Real experimental 3rd main ion density Measured third main ion density profile in m-3.
NM3XPEB m^-3Real error in experimental 3rd main ion density Error bars on measured third main ion density profile in m-3.
NMn m^-3Real interpolated nth main ion density nth main ion density profile in m-3.
1 &le n &le 9.
If there are m main ion species, then NM1 - NMm should be filled, and NMm+1 - NM9 should be missing.
NMnEB m^-3Real error in interpolated nth main ion density Error bars on nth main ion density profile in m-3.
NMnXP m^-3Real experimental nth main ion density Measured nth main ion density profile in m-3.
NMnXPEB m^-3Real error in experimental nth main ion density Error bars on measured nth main ion density profile in m-3.
PRES PaReal scalar MHD pressure profile scalar MHD pressure flux function, as used in solution of Grad-Shafranov equilibrium equation
Q -Real safety factor profile Safety factor profile.
QEB -Real error in safety factor profile Error bars on safety factor profile.
Provided on the same radial positions as Q.
QECHE W/m^3Real ECH electron power deposition Power deposition profile
QECHI W/m^3Real ECH ion power deposition Power deposition profile on thermal ions by ECH in W/m-3.
QEI W/m^3Real equipartition power density Equipartition power density from electrons to ions in W m-3.
QFUSE W/m^3Real fusion power deposition to electrons Electron heating density due to fusion DT reaction in Wm-3.
QFUSI W/m^3Real fusion power deposition to ions Main thermal ion heating density due to DT fusion reaction in Wm-3. Includes the thermalization power (1.5 Sthermal α Ti) when Helium4 is the main thermal ion.
QIBWE W/m^3Real IBW electron power deposition Power deposition profile on thermal electrons by IBW in W/m-3.
QIBWI W/m^3Real IBW ion power deposition Power deposition profile on thermal ions by IBW in W/m-3.
QICRHE W/m^3Real ICRH electron power deposition Power deposition profile on thermal electrons by icrh in W/m-3.
QICRHI W/m^3Real ICRH ion power deposition Power deposition profile on thermal ions by icrh in W/m-3.
QLHE W/m^3Real LH electron power deposition Power deposition profile on thermal electrons by LH in W/m-3.
QLHI W/m^3Real LH ion power deposition Power deposition profile on thermal ions by LH in W/m-3.
QNBIE W/m^3Real NBI electron power deposition Power deposition profile on thermal electrons by beams in W/m-3.
QNBII W/m^3Real NBI ion power deposition Power deposition profile on thermal ions by beams in W/m-3.
(includes the thermalization power of fast ions
QOHM W/m^3Real Ohmic power density Ohmic power density in W m-3.
QRAD W/m^3Real radiated power density Total radiated power density in W m-3.
QWALLE W/m^3Real electron heat loss from ionisation of wall neutrals Thermal electrons heat loss due to the ionisation of wall neutrals in W m-3.
QWALLI W/m^3Real ion heat loss from ionisation/CX of wall neutrals Main thermal ion heat loss due to ionisation and charge exchange with wall neutrals in Wm-3.
= ⟨ σ v ⟩ cx n0 ni (1.5 Ti - E0 ) +⟨ σ v ⟩ ionisation n0 ne E0
RHOxxxx -Real evolving rho grid for experimental data evolving rho grid for experimental data, where xxxx = TEXP, TEXPEB, TIXP, TIXPEB, NEXP, NEXPEB, NMnXP, NMnXPEB, VROTXP, VROTXPEB (where n labels thermal ion species 1&le n&le 9).
RMAJOR mReal major radius The geometrical major radius in meters, from an MHD equilibrium fit, defined as the average of the minimum and the maximum radial extent of the magnetic surface at the elevation of the magnetic axis.
Normal level of accuracy is ASDEX (± 0.5%), D3D (± 0.6%) JET (± 1%), JFT2M (± 0.75%), PBXM (± 0.65%), PDX (± 0.75%).
RMINOR mReal minor radius Geometric minor radius of the magnetic surface at the elevation of the magnetic axis in m .
SBE m^-3 s^-1Real direct beam-electron ionization rate direct beam-electron ionization rate
SBOI m^-3 s^-1Real sink rate of neutrals due to impact ionisation on fast ions sink rate of neutrals due to impact ionisation on fast ions
SBOX m^-3 s^-1Real sink rate of neutrals due to charge exchange on fast ions sink rate of neutrals due to charge exchange on fast ions
SNBIE m^-3/sReal NBI electron source Source of thermal electrons from beams in s-1 m-3.
SNBII m^-3/sReal NBI ion source Source of thermal ions from beams due to thermalization of beams particle and include charge exchange processes, in s-1 m-3.
SURF m^2Real surface area Surface area of the magnetic surface in m2.
SWALL m^-3/sReal ion particle source from ionisation of recycled wall neutrals Main thermal ion particle source term due to ionisation of recycling wall neutrals in m-3 s-1.
TE eVReal interpolated electron temperature Fitted electron temperature profile in eV.
TEEB eVReal error in interpolated electron temperature Error bars on the fitted electron temperature profile in eV. Provided on the same radial positions as TE.
TEXP eVReal experimental electron temperature Measured electron temperature profile in eV.
TEXPEB eVReal error in experimental electron temperature Error bars on the measured electron temperature profile in eV.
TI eVReal interpolated ion temperature Fitted ion temperature profile in eV.
TIEB eVReal error in interpolated ion temperature Error bars on the fitted ion temperature profile in eV.
Provided on the same radial positions as TI.
TIXP eVReal experimental ion temperature Measured ion temperature profile in eV.
TIXPEB eVReal error in experimental ion temperature Error bars on the measured ion temperature profile in eV.
TIXPEB is added to TIXP for the upper limit.
TIXPEB is subtracted from TIXP for the lower limit.
Provided on the same radial positions as TIXP.
TORQ N/m^2Real external torque density on plasma external torque density on plasma.
+ve TORQ is anti-clockwise when viewed from above
UBPAR J m^-3Real parallel beam kinetic energy density parallel beam kinetic energy density
UBPRP J m^-3Real perpendicular beam kinetic energy density perpendicular beam kinetic energy density
VOLUME m^3Real volume Volume enclosed by the magnetic surface in m3.
VROT rad/sReal fitted toroidal angular speed Generic and long-standing variable to store the fitted toroidal angular speed in rad/s.
The comments file should specify the ion species that is associated with the submitted data: eg Carbon impurity rotation based on CXRS measurements, or estimated mass weighted average over all ion species of the toroidal angular speed using impurity rotation measurements and a physics model (such as the neoclassical model of NCLASS).
+ve VROT is anti-clockwise when viewed from above.
VROTEB rad/sReal error in fitted toroidal angular speed Error bars on fitted toroidal angular speed in rad/s.
Provided on same radial positions as VROT.
VROTM rad/sReal Mass weighted mean toroidal angular speed Mass weighted mean toroidal angular speed in rad/s.
The comments file should specify the measurements and model assumptions used to estimate this data: eg combining impurity rotation measurements of C, O and the neoclassical model of NCLASS and assuming negligible poloidal rotation.
+ve VROTM is anti-clockwise when viewed from above.
VROTMEB rad/sReal Error in mass weighted mean toroidal angular speed Error in mass weighted mean toroidal angular speed (rad/s).
VROTXP rad/sReal experimental toroidal angular speed Measured toroidal angular speed in rad/s.
The comments file should specify the nature of submitted data more precisely: eg fitted Carbon impurity rotation based on CXRS measurements, or an estimate of the mass weighted average toroidal angular speed over all ion species using impurity rotation measurements and a physics model (such as the neoclassical theory model of NCLASS).
+ve VROTXP is anti-clockwise when viewed from above.
VROTXPEB rad/sReal error in experimental toroidal angular speed Error bars on measured toroidal angular speed (rad/s).
VROTXPEB is added to VROTXP for upper limit.
VROTXPEB is subtracted from VROTXP for lower limit.
Provided on same radial positions as VROTXP.
ZEFFR -Real effective charge profile Plasma effective charge radial profile.
ZEFFREB -Real error in effective charge profile Error bars on plasma effective charge radial profile.
Provided on the same radial positions as ZEFFR.


EQUIL Variables
EQUIL Signal UnitsData TypeBrief DescriptionFull Description
EQUIL:FFPRIMPSI T.radReal FdF/dPSI
2D:- FFPRIMPSI(psi,t)
FdF/dPSI, where F=RB&phi and PSI is poloidal flux per radian
2D:- FFPRIMPSI(psi,t)
EQUIL:FPOLPSI TmReal FPOLPSI=(RBt)
2D:- FPOLPSI(psi,t)
Toroidal field function FPOLPSI=(RBt)
2D:- FPOLPSI(psi,t)
EQUIL:PPRIMEPSI Pa.rad/WbReal dP/dPSI
2D:- PPRIMEPSI(psi,t)
dP/dPSI, where P is plasma pressure and PSI is poloidal flux per radian
2D:- PPRIMEPSI(psi,t)
EQUIL:PRESPSI PaReal Plasma pressure,
2D:- PRESPSI(psi,t)
Plasma pressure vs. poloidal flux
2D:- PRESPSI(psi,t)
EQUIL:PSIBDRY Wb/radReal PSI at separatrix
1D:- PSIBDRY(t)
PSI at separatrix
1D:- PSIBDRY(t)
EQUIL:PSIMAG Wb/radReal PSI at magnetic axis
1D:- PSIMAG(t)
PSI at magnetic axis
1D:- PSIMAG(t)
EQUIL:PSIRZ Wb/radReal Poloidal flux per radian
3D:- PSIRZ(R,Z,t)
Poloidal flux per radian
3D:- PSIRZ(R,Z,t)
EQUIL:QPSI -Real Safety factor Q
2D:- QPSI(psi,t)
Safety factor Q
2D:- QPSI(psi,t)
EQUIL:RBDRY mReal R values on plasma boundary contour
2D:- RBDRY(index,t)
R values on plasma boundary contour
2D:- RBDRY(index,t)
EQUIL:RBDRY:NPTS -Integer number of boundary points
1D:- NPTS(t)
number of boundary points
1D:- NPTS(t)
EQUIL:RCONTR mReal R values on PSI contours
3D:- RCONTR(index, psi, t)
R values on PSI contours
3D:- RCONTR(index, psi, t)
EQUIL:RCONTR:NPTS -Integer number of points on each PSI contour
2D:- NPTS(psi,t)
number of points on each PSI contour
2D:- NPTS(psi,t)
EQUIL:RMAXIS mReal R at magnetic axis
1D:- RMAXIS(t)
R at magnetic axis
1D:- RMAXIS(t)
EQUIL:RXPT mReal R at X-point(s)
2D:- RXPT(X-point-index,t)
R at X-point(s)
2D:- RXPT(X-point-index,t)
EQUIL:RXPT:NPTS -Integer number of X-points
1D:- NPTS(t)
number of X-points
1D:- NPTS(t)
EQUIL:ZBDRY mReal Z values on plasma boundary contour
2D:- ZBDRY(index,t)
Z values on plasma boundary contour
2D:- ZBDRY(index,t)
EQUIL:ZBDRY:NPTS -Integer number of boundary points
1D:- NPTS(t)
number of boundary points
1D:- NPTS(t)
EQUIL:ZCONTR mReal Z values on PSI contours
3D:- ZCONTR(index, psi, t)
Z values on PSI contours
3D:- ZCONTR(index, psi, t)
EQUIL:ZCONTR:NPTS -Integer number of points on each contour
2D:- NPTS(psi,t)
number of points on each contour
2D:- NPTS(psi,t)
EQUIL:ZMAXIS mReal Z at magnetic axis
1D:- ZMAXIS(t)
Z at magnetic axis
1D:- ZMAXIS(t)
EQUIL:ZXPT mReal Z at X-point(s)
2D:- RXPT(xpoint_index,t)
Z at X-point(s)
2D:- RXPT(xpoint_index,t)
EQUIL:ZXPT:NPTS -Integer number of X-points
1D:- NPTS(t)
number of X-points
1D:- NPTS(t)