Low-threshold sapphire detector for rare event searches

被引：2

作者：

Verma, S. ^{[1
]}

Maludze, S. ^{[1
]}

Lee, M. ^{[1
]}

Chaudhuri, M. ^{[2
,3
]}

Iyer, V. ^{[2
,3
]}

Kashyap, V. K. S. ^{[2
,3
]}

Kubik, A. ^{[4
]}

Lin, Y. -T. ^{[1
]}

Mahapatra, R. ^{[1
]}

Mirabolfathi, N. ^{[1
]}

Mishra, N. ^{[1
]}

Mohanty, B. ^{[2
,3
]}

Neog, H. ^{[1
]}

Jastram, A. ^{[1
]}

Platt, M. ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Phys & Astron, 578 Univ Dr, College Stn, TX 77840 USA

[2] Natl Inst Sci Educ & Res, Sch Phys Sci, Jatni 752050, India

[3] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, India

[4] SNOLAB, Creighton Mine 9,1039 Reg Rd 24, Sudbury, ON P3Y IN2, Canada

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1046卷

关键词：

Low mass dark matter; Low threshold detector; Phonon detector; CE nu NS; Low temperature; DARK-MATTER;

D O I：

10.1016/j.nima.2022.167634

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Low mass nuclear recoil dark matter and coherent-elastic-neutrino-nucleus-scattering (CE nu NS) searches confront similar challenges in choosing ultra-low threshold and large-mass detectors. We report experimental results from a 100 g single-crystal sapphire detector design with a diameter of 76 mm and thickness of 4 mm instrumented with transition edge sensors (TES). Sapphire is a crystal of aluminum oxide (Al2O3) and has been found to be a good candidate for light mass dark matter search experiments due to its lower atomic mass compared to other detector materials such as germanium and silicon. This new phonon-assisted sapphire detector was characterized to yield a baseline recoil energy resolution of 28.4 +/- 0.4 eV. The detector is designed to be sensitive to low-energy rare interactions with an intention to investigate the low-mass region of dark matter phase-space and search for CE nu NS at the reactor site.

引用

页数：6

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