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ASI Supported Irradiation Facilities

ASI-ENEA-INFN agreements

(version 3.1.7)

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Fluence to TNID dose calculator for protons and ions, adapted from sr-niel website calculators

Incident Particle:
Proton and Ion Model:
Hadronic Contribution:
Target Materials
Target Selection:
N° Elements:
Target Material Z Stoichiometric Index or Element Fraction Displacement Threshold Energy [eV]
Dose Calculation
values:
(use dot "." as decimal separator)
(use a space to separate energy value from fluence)
(use separate raw for adding energy-fluence pair)
Energy
[MeV]		Fluence
[cm-2]


NOTE:
  • In the present NIEL calculators, for protons up to 1 GeV and alpha-particles up to 1 GeV/nucleon impinging on elements with atomic number from Z=4 up to Z=51 , the hadronic contributions were interpolated or extrapolated from those obtained from [Jun et al. (2003, 2004), Jun (2017)] regarding 10 absobers (i.e., C, Al, Si, P, Ga, Ge, As, In, Cu, Se). For silicon absorbers, in addition, the hadronic contribution for energies from 1 up to 24 GeV was obtatined from [Huhtinen (2002)]. As default option, no Ed depence is included for the hadronic contribution to NIEL. As alternative option, the hadronic contribution are linearly varied with respect to the calculated by the same amount found for Coulomb contributions.
  • NIEL for compounds can be determined by means of Bragg's rule, i.e., the overall NIEL in units of MeV cm2/g is obtained as a weighted sum in which each material contributes proportionally to the fraction of its atomic weight. An example for selection, with GaInP2 as target, follows:

    or equivalently

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