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arXiv 1105.4745physics.ins-det
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QMB6校准板和HBU0原型的光束测试

Beam test of the QMB6 calibration board and HBU0 prototype

Jaroslav Cvach, Jiri Kvasnicka, Ivo Polak, Jaroslav Zalesak

摘要:

我们报告的性能的HBU0板和光学校准系统QMB6在DESY测试光束。在HBU 0板上测量MIP信号,为LED振幅扫描提供参考,显示递送至12个SiPM中的每一个的光量,最大为0至250 MIP。ASIC模拟存储器单元的性能与SiPM信号强度的关系进行了分析。在高增益模式下,我们观察到ASIC读出值的不均匀性和基座偏移,以获得更高的信号强度。

英文摘要:

We report about the performance of the HBU0 board and the optical calibration system QMB6 in the DESY test beam. A MIP signal was measured on the HBU0 board, providing a reference to the LED amplitude scan, showing an amount of light delivered to each of 12 SiPMs from 0 to 250 MIP at maximum. An ASIC analogue memory cell performance was analyzed in relation with the SiPM signal strength. We observed a non-uniformity and a pedestal shift in the ASIC readout values in the high gain mode for the higher signals strength.

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