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arXiv · 1210.2347

Cryostat for Ultra-low-energy Threshold Germanium Spectrometers

Craig E. Aalseth·Ricco M. Bonicalzi·James E. Fast·Todd W. Hossbach·John L. Orrell·Cory T. Overman·Brent A. Vandevender
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Abstract

This paper presents progress on the development of a cryostat intended to improve upon the low-energy threshold (below 0.5 keV) of p-type point contact germanium gamma-ray spectrometers. Ultra-low energy thresholds are important in the detection of low-energy nuclear recoils, an event class relevant to both dark matter direct detection and measurement of coherent neutrino-nucleus scattering. The cryostat design, including a thermal and electrical-field model, is given. A prototype cryostat has been assembled and data acquired to evaluate its vacuum and thermal performance.

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Craig E. Aalseth, Ricco M. Bonicalzi, James E. Fast, Todd W. Hossbach, John L. Orrell, Cory T. Overman, Brent A. Vandevender. 2012-10-08. Cryostat for Ultra-low-energy Threshold Germanium Spectrometers. https://doi.org/10.1109/tns.2012.2224669

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