Surface-sensitive macrobolometers for the identification of external charged particles

Abstract

We report the performance of two prototype TeO2 macrobolometers, operated at ∼25 mK, able to identify events due to energy deposited at the detector surface. This capability is obtained by thermally coupling thin Ge active layers to the main energy absorber of the bolometer, and is demonstrated by irradiating the detectors with α particles. The temperature… (More)

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