Commercially Available Capacitors at Cryogenic Temperatures
Commercially Available Capacitors at Cryogenic Temperatures
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低温商用电容器
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
D. PRELE
中科院分区：
文献类型：
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作者：
F. Teyssandier;D. PRELE
商业上可用的电容器没有规定在77K或4K下工作，一些器件在低温下表现出电容的急剧下降。此外，对于低温低阻传感器的偏压，了解寄生电阻是非常重要的。在这种情况下，用于交流偏置的电容器的寄生等效串联电阻(ESR)是偏置电压的瓶颈。参与了TES的开发和SQUID的多路复用，我们已经表征了一些商用电容器在77K和4K下的电容和ESR值。
Commercially available capacitors are not specified for operation at 77 K or 4 K, and some devices showed a dramatic decrease of capacitance at cryogenic temperature. Furthermore, for voltage biasing of cryogenic low impedance sensors it is very important to know parasitic resistance. In this case, the parasitic Equivalent Series Resistance (ESR) of the capacitor used for the AC-biasing is a bottleneck of the voltage biasing. Involved in TES development and SQUID multiplexing, we have characterized the capacitance and the ESR values of some commercially available capacitors at 77 K and 4 K.