A survey of energy loss calculations for heavy ions between 1 and 100kev

Abstract

The original Lindhard-Scharff-Schiøtt (LSS) theory and the more recent Tilinin theory for calculating the nuclear and electronic stopping powers of slow heavy ions are compared with predictions from the SRIM code by Ziegler. While little discrepancies are present for the nuclear contribution to the energy loss, large differences are found in the electronic one. When full ion recoil cascade simulations are tested against the elastic neutron scattering data available in the literature, it can be concluded that the LSS theory is the more accurate.

New measurement of the relative scintillation efficiency of xenon nuclear recoils below 10 keV

“…electronic quenching, is based on Lindhard quenching as well as the Thomas-Fermi approximation; for Xe nuclear recoils, both break down below 10 keV [33,34].…”

Measurement of the quenching factor of Na recoils in NaI(Tl)

“…Quenching factors for silicon recoils in Si, argon in Ar, germanium in Ge and xenon in Xe have been derived from SRIM by [29], and compared with predictions from Lindhard theory and experimental data where available. Their results indicate that the nuclear stopping powers predicted Figure 13.…”

Liquid noble gas detectors for low energy particle physics

“…For xenon, it results in somewhat low values for the electronic-to-nuclear loss ratio, which predicts a lower-than-observed scintillation yield for nuclear recoils even if no quenching is taken into account. A comparative analysis of SRIM/TRIM and LSS model predictions can be found in [78]. 4 …”

“…It is clear that the contribution from nuclear collisions cannot be neglected, especially in liquid xenon, but the details of the track structure are not sufficiently clear. The Bohr impulse principle is not applicable in the case of ions moving through a medium with velocity comparable to, or lower than, that of atomic electrons (see [78]). Besides, as the medium consists of atoms of the same species, the primary recoil can transfer a significant fraction of its kinetic energy in each collision, thus losing rapidly its 'projectile' identity and producing a cascade of secondary recoils of comparable energy which interact with the medium in the same way.…”