An in-situ movable calibration source for cryogenic particle detectors

被引：2

作者：

Mast, N. ^{[1
]}

Fritts, M. ^{[1
]}

Sincavage, D. J. ^{[1
]}

Cushman, P. ^{[1
]}

Mandic, V ^{[1
]}

机构：

[1] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 971卷

关键词：

Calibration; Cryogenic; Germanium; Ionization; Phonon; Stepper motor;

D O I：

10.1016/j.nima.2020.164070

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A prototype device capable of moving a radioactive calibration source to multiple positions was operated at millikelvin temperatures using a modified commercial stepper motor. It was developed as an in-situ calibration strategy for cryogenic dark matter detectors. Data taken by scanning a calibration source across multiple radial positions of a prototype dark matter detector demonstrated its functionality. Construction, heat load, and operation of the device are discussed, as is the effect of the motor on the detector operation. A sample dataset taken over multiple positions of a SuperCDMS detector is presented as an example of the utility of such a device.

引用

页数：4

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