B. Baumbaugh, J. Bishop, N. Biswas, L. Coney, J. Marchant, E. Masterson, R. Ruchti, T. Stavish, J. Warchoł, M. Wayne
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引用次数: 3
摘要
我们设计、构建并运行了一个支持32通道可见光光子计数器(hste - iv vlpc)操作的小型系统。vlpc位于一个小的外壳内，可以降低到30-100升杜瓦瓶。蒸发氦的焓使vlpc保持低温，并允许系统在6.0 K-7.5 K的期望温度范围内稳定运行许多天。该系统配备了透明光纤波导，它将光从位于系统顶部和杜瓦瓶外部的光学连接器传输到杜瓦瓶内低温下的光传感器。来自vlpc的电信号在室温下使用QPA02前置放大器进行放大。详细的设计和性能进行了审查。
Small cryostem for operation of visible light photon counters (VLPC)
We have designed, constructed, and operated a small cryostem which supports the operation of 32 channels of visible light photon counters (HISTE-IV VLPCs). The VLPCs are situated within a small enclosure which can be lowered into a 30-100 liter dewar. The enthalpy of the boil-off helium keeps the VLPCs cold, and allows the system to be operated with stability for many days within the desired temperature range of 6.0 K-7.5 K. The cryostem is instrumented with clear fiber waveguides which transport the light from an optical connector situated at the top of the cryostem and outside of the dewar to the photosensors at cryogenic temperatures within the dewar. Electrical signals from the VLPCs are amplified at room temperature using QPA02 preamplifiers. Details of design and performance are reviewed.
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