Edelweiss的高阻抗TES验证仪

论文标题

Edelweiss的高阻抗TES验证仪

High impedance TES bolometers for EDELWEISS

论文作者

Marnieros, S., Armengaud, E., Arnaud, Q., Augier, C., Benoît, A., Bergé, L., Billard, J., Broniatowski, A., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., De Jésus, M., Dumoulin, L., Eitel, K., Fillipini, J. -B., Filosofov, D., Gascon, J., Giuliani, A., Gros, M., Jin, Y., Juillard, A., Kleifges, M., Lattaud, H., Misiak, D., Navick, X. -F., Nones, C., Olivieri, E., Oriol, C., Pari, P., Paul, B., Poda, D., Rozov, S., Salagnac, T., Sanglard, V., Vagneron, L., Yakushev, E., Zolotarova, A.

论文摘要

Edelweiss协作的目的是使用具有低阈值声子传感器技术和有效的电荷读数设计的锗低温检测器直接检测轻暗物质。我们在这里描述了基于NBXSI1-X TES合金配备高阻抗热敏电阻的GE强仪的开发。高纵横比螺旋设计使TES阻抗与JFET或HEMT前端放大器匹配。我们详细介绍了这些传感器的超导过渡性能的行为，并根据对不平衡性声子的敏感性而优化了检测器优化。我们报告了200克检测器的初步结果，该结果是在LSM地下实验室使用中子71GE激活进行校准的。

The EDELWEISS collaboration aims for direct detection of light dark matter using germanium cryogenic detectors with low threshold phonon sensor technologies and efficient charge readout designs. We describe here the development of Ge bolometers equipped with high impedance thermistors based on a NbxSi1-x TES alloy. High aspect ratio spiral designs allow the TES impedance to match with JFET or HEMT front-end amplifiers. We detail the behavior of the superconducting transition properties of these sensors and the detector optimization in terms of sensitivity to out-of-equilibrium phonons. We report preliminary results of a 200 g Ge detector that was calibrated using 71Ge activation by neutrons at the LSM underground laboratory.

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