# Calibration of nuclear recoils at the 100 eV scale using neutron capture

Authors
And 11 more
Type
Preprint
Publication Date
Nov 27, 2020
Submission Date
Nov 27, 2020
Source
University of Michigan Library Repository
The development of low-threshold detectors for neutrinos and dark matter necessitates low-energy calibration. We suggest this can be provided by the nuclear recoils resulting from the $\gamma$ emission following neutron capture. There is often a well defined MeV-scale $\gamma$ associated to a nuclear recoil in the 100 eV range. Using the FIFRELIN code, $\gamma$-cascades of various isotopes can be predicted with high accuracy. We present a comprehensive experimental concept for the calibration of CaWO$_4$ and Ge cryogenic detectors and show the potential of additional $\gamma$-tagging to extend the reach of the method.