First Measurement of the Nuclear-Recoil Ionization Yield in Silicon at 100 eV

Author First name, Last name, Institution

Document Type

Article

Source of Publication

Physical Review Letters

Publication Date

8-28-2023

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.

ISSN

0031-9007

Publisher

American Physical Society (APS)

Volume

131

Issue

9

First Page

091801

Last Page

091801

Disciplines

Physics

Keywords

Particle Detector Development and Performance, Radiation Detection and Scintillator Technologies, Ion-surface interactions and analysis

Indexed in Scopus

no

Open Access

no

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