First Measurement of the Nuclear-Recoil Ionization Yield in Silicon at 100 eV.
Phys Rev Lett
; 131(9): 091801, 2023 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-37721818
ABSTRACT
We measured the nuclear-recoil ionization yield in silicon with a cryogenic phonon-sensitive gram-scale detector. Neutrons from a monoenergetic beam scatter off of the silicon nuclei at angles corresponding to energy depositions from 4 keV down to 100 eV, the lowest energy probed so far. The results show no sign of an ionization production threshold above 100 eV. These results call for further investigation of the ionization yield theory and a comprehensive determination of the detector response function at energies below the keV scale.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2023
Type:
Article
Affiliation country:
Canada