论文标题
对三轮检测器的ASIC的调查
Investigations on ASIC for Triple-GEM Detectors
论文作者
论文摘要
这项工作的主要目的是研究APV25和VMM3A读数芯片的性能，以在三个GEM检测器的前端读数系统中使用它们。对于APV25，估计宇宙测量值约为84.29 +/- 0.12，估算了信噪比（SNR）。对于VMM3A，芯片的噪声是根据整个参数空间中的等效噪声电荷（ENC）表征的，并且输入电容的增加。对于最高的VMM增益和高峰时间设置，计算出的ENC约为300个电子 + 8个电子/PF。最后，根据两个芯片的噪声进行了比较，同时准备了通过VMM读数的将来的宇宙测量设置，以得出VMM SNR比率。
The main purpose of this work is to study the performance of the APV25 and VMM3a readout chips with regards to using them in the front-end readout system of a Triple-GEM detector. For the APV25, the Signal-to-Noise Ratio (SNR) was estimated with a cosmics measurement around 84.29 +/- 0.12. For the VMM3a, the noise of the chip was characterised in terms of the Equivalent Noise Charge (ENC) in the full parameter space and with increasing input capacitance. For the highest VMM gain and peaktime settings, the calculated ENC was about 300 electrons + 8 electrons/pF. Finally, a comparison was made between the two chips, based on their noise, while also the setup for future cosmics measurements with a VMM readout was prepared in order to also derive the VMM SNR ratio.
