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SR-NIEL – 7

Screened Relativistic (SR) Treatment for NIEL Dose

Nuclear and Electronic Stopping Power Calculator

(version 10.14)

Proton High AMS02 small

The current web calculator for collision electronic stopping power is based on a fit of the tables - based on ICRU Report 37 - from ESTAR code at NIST. The tables are reproduced with a maximum discrepancy < 1%.
The radiative stopping powers are those evaluated in ESTAR (e.g., see webpage). The tables corresponding are reproduced with a maximum discrepancy < 1%.

Target Materials
Target Selection:
Element:
Traversed Path [g cm-2]
Number of steps:
Spectral Fluence
values:
use dot as decimal separator;
at least, three rows (energy and spectral fluence) of values are required
Energy
[MeV]
Spectral Fluence
[cm-2 MeV-1]


EXAMPLE:
Copy and paste the data here to reproduce the following example.
Electrons spectral fluence during ESA Juice mission moderated by 50 mils of Al (0.3429 [g cm-2]):

Spectral fluence data are calculated with JOREM Model implemented in SPENVIS
assuming a 4 sr solid angle exposure.

NOTE:
  • The lower energy limit is 1 keV
  • The higher energy limit is 10 GeV
  • The default traversed path is that for 50 mils of Al
  • The lower limit of traversed path is equivalent to about 5 μm of Si (1.16x10-3 [g cm-2]), e.g., 0.96 cm in Dry Air at sea level with density equal to 1.20484x10-3 g/cm3 (as implemented in SRIM from ICRU-37 table 5.5).
  • Residual energies were obtained disregarding multiple scattering effect, i.e., directions of flight of emerging particles were unchaged with respect to those of impinging directions.