TNID volumic analysis (TNID_V)

Module type name (to be used for the module commands): tnid_v Note: For backwards compatibility the previous nid name can also be used.

Description

Total Non Ionising Dose volumic (TNID_V) analysis modules also compute the Total Non Ionising Dose (TNID).

The TNID_V algorithm for TNID calculation is based on the same NIEL curves as the TNID interface (TNID) analysis, but in contrast to the TNID analysis the TNID_V calculation is performed inside the volume, step by step.

NIEL curve sets

Please refer to the NIEL module documentation for a description of the NIEL coefficient tables.

Script example

/gras/analysis/tnid_v/addModule tnid_vDetector
/gras/analysis/tnid_v/tnid_vDetector/addVolume Detector
/gras/analysis/tnid_v/tnid_vDetector/setCurve JPL_NRL_NASA
/gras/analysis/tnid_v/tnid_vDetector/setSpecifier G4_Si
/gras/analysis/tnid_v/tnid_vDetector/setUnit MeV/g

Available Units

The module accepts as units all the G4 units under the “Dose” category. Additional GRAS units that can be used are:

  • keV/g

  • MeV/g

  • MeV/mg

  • 95MeVmb/cm2

  • Rad (rad is also accepted, but it is recommended not to be used do distinguish it from the “Angle” unit)

  • keVcm3/g

  • MeVcm3/g

  • MeVcm3/mg

  • 95MeVmbcm

  • 10MeVpcm (depends on curve selected)

  • 10MeVp/cm2 (depends on curve selected)

  • 50MeVpcm (depends on curve selected)

  • 50MeVp/cm2 (depends on curve selected)

  • 1MeVecm (depends on curve selected)

  • 1MeVe/cm2 (depends on curve selected)

  • 1MeVncm (depends on curve selected)

  • 1MeVn/cm2 (depends on curve selected)

For the units that require the definition of a target volume, the volume is automatically computed by the GRAS module, based on the inserted volumes, but it can be set/overwritten by the user with the command setVolume.

The units 10MeVp/cm2, 50MeVp/cm2, 1MeVe/cm2, 1MeVn/cm2 (10MeVpcm, 50MeVpcm, 1MeVecm, 1MeVncm) provide a normalisation of the result to an equivalent fluence(/number) of respectively 10 MeV protons, 50 MeV protons, 1 MeV electrons or 1 MeV neutrons, i.e. to the particle fluence(/number) that would produce the same TNID result. The internal conversion factors for these units are updated at each change of the NIEL curve set to use the corresponding NIEL coefficients. If the coefficients for the needed particle species are not available from the chosen NIEL curve set, the corresponding units are not available.

Specific Module commands

The Module is based on the Generic Factors Analysis module, so the commands specified therein are available to this module also.

Output

The Module is based on the Generic Factors Analysis module, so the output information specified therein is available to this module also.

The GFMtype is TNID_V.

GRAS/trunk/r2242