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arXiv 0909.0806nucl-ex
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用于识别外部带电粒子的表面敏感宏测辐射热计

Surface-sensitive macrobolometers for the identification of external charged particles

Luca Foggetta, Andrea Giuliani, Claudia Nones, Marisa Pedretti, Samuele Sangiorgio

摘要:

我们报告的性能的两个原型TeO 2宏测辐射热计,在~25 mK,能够识别事件,由于能量沉积在探测器表面。这种能力是通过热耦合薄锗有源层的辐射热计的主要能量吸收体,并证明通过照射探测器与α粒子。主吸收体和有源层的温度变化独立测量与掺杂锗热敏电阻。这些结果清楚地表明,单片低温量热计的固有限制,使用复合结构可以有效地克服不可能给出关于事件位置的信息的问题。

英文摘要:

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 alpha particles. The temperature variations of the main absorber and of the active layer are measured independently with doped Ge thermistors. These results show clearly that an intrinsic limitation of monolithic low temperature calorimeters, e.g., the impossibility to give information about event position, can be efficiently overcome using composite structures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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