Measurement of Low Energy Nuclear Recoil Events with the phonon-mediated Voltage-Assisted Hybrid Detector for Rare Event Searches

Fuente: arXiv
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Autori principali: Maludze, Sandro, Mirzakhani, Mahdi, Baker, William, Lee, Matthew, Savage, Chelsea, Neog, Himangshu, Mahapatra, Rupak, Mirabolfathi, Nader, Platt, Mark, Jastram, Andrew
Natura: Preprint
Pubblicazione: 2024
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author Maludze, Sandro
Mirzakhani, Mahdi
Baker, William
Lee, Matthew
Savage, Chelsea
Neog, Himangshu
Mahapatra, Rupak
Mirabolfathi, Nader
Platt, Mark
Jastram, Andrew
author_facet Maludze, Sandro
Mirzakhani, Mahdi
Baker, William
Lee, Matthew
Savage, Chelsea
Neog, Himangshu
Mahapatra, Rupak
Mirabolfathi, Nader
Platt, Mark
Jastram, Andrew
contents The phonon-mediated hybrid detector is made out of a monolithic silicon crystal characterized by two interconnected regions linked through a narrow neck. Operating solely on phonon signal measurements, the hybrid design facilitates the differentiation between electron recoil and nuclear recoil events, effectively discerning two types of interaction down to low energy levels. With a newly implemented software triggering technique (SWT), low-energy nuclear recoil events of approximately $500~eV_{ee}$ have been measured. In addition to this, an electron recoil background reduction of up to $95\%$ has been successfully demonstrated.
format Preprint
id arxiv_https___arxiv_org_abs_2405_02311
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Measurement of Low Energy Nuclear Recoil Events with the phonon-mediated Voltage-Assisted Hybrid Detector for Rare Event Searches
Maludze, Sandro
Mirzakhani, Mahdi
Baker, William
Lee, Matthew
Savage, Chelsea
Neog, Himangshu
Mahapatra, Rupak
Mirabolfathi, Nader
Platt, Mark
Jastram, Andrew
Instrumentation and Detectors
The phonon-mediated hybrid detector is made out of a monolithic silicon crystal characterized by two interconnected regions linked through a narrow neck. Operating solely on phonon signal measurements, the hybrid design facilitates the differentiation between electron recoil and nuclear recoil events, effectively discerning two types of interaction down to low energy levels. With a newly implemented software triggering technique (SWT), low-energy nuclear recoil events of approximately $500~eV_{ee}$ have been measured. In addition to this, an electron recoil background reduction of up to $95\%$ has been successfully demonstrated.
title Measurement of Low Energy Nuclear Recoil Events with the phonon-mediated Voltage-Assisted Hybrid Detector for Rare Event Searches
topic Instrumentation and Detectors
url https://arxiv.org/abs/2405.02311