Normal level of accuracy is ASDEX (± 2%), D3D (± 1%), JET (± 1%), JFT2M (± 1%), PBXM (± 1%), PDX (± 1%). BT $ 3 $ T $ vacuum toroidal field at geometric axis $ The vacuum toroidal magnetic field in Tesla at RGEO determined from the TF coil current. Negative values for JET indicate operation with reversed toroidal field.

Normal level of accuracy is ± 1% for all machines. AMIN $ 3 $ m $ 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%). RGEO $ 3 $ m $ 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%). KAPPA $ 3 $ $ 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%). DELTA $ 3 $ $ triangularity $ The 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). INDENT $ 3 $ m $ 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). PNBI $ 3 $ W $ 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%). PECH $ 3 $ W $ 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. PICRH $ 3 $ W $ 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 $ 3 $ W $ coupled LH power $ LH power in watts coupled to the plasma. Zero if no LH is applied. PIBW $ 3 $ W $ coupled IBW power $ IBW power in watts coupled to the plasma. Zero if no IBW is applied. PFLOSS $ 3 $ W $ 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/10

JET: PINJ exp (3.35 - 0.667 | IP |/10

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%). PRAD $ 3 $ W $ 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). ZEFF $ 3 $ $ 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. NEL $ 3 $ m^-3 $ line averaged electron density $ Central line average electron density in m

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 10

Normal level of accuracy is ASDEX (± 5%), D3D (Na), JET (± 5%), JFT2M (± 5%), PBXM (±50%), PDX (± 10%). VLOOP $ 3 $ V $ measured loop voltage $ Measured loop voltage at the coil location in volts. LI $ 3 $ $ internal inductance $ Internal plasma inductance:

l

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 $ 3 $ J $ 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. TE0 $ 3 $ eV $ 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. TI0 $ 3 $ eV $ 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. Q95 $ 3 $ $ 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 = q

Normal level of accuracy is ASDEX (± 15%), D3D (± 3%), JET (± 10%), JFT2M (± 10%) PBXM (± 10%), PDX (± 10%). POHM $ 3 $ W $ Ohmic power $Total ohmic power in watts.

ASDEX: Determined from max {0, VSURF*IP}, (Ohmic: ± 5% H: ± 50%).

D3D: Calculated using CB

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%). IBOOT $ 3 $ A $ bootstrap current $ Estimated total bootstrap current (in A). PHIA $ 3 $ Wb $ toroidal flux $ Total toroidal flux in Weber enclosed by the plasma separatrix. PFUSION $ 3 $ W $ DT fusion power $ Total fusion power due to DT reactions in W.