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A multichannel front end ASIC for PMT readout in LHAASO WCDA

Autor: Liang, Yu, Zhao, Lei, Guo, Yuxiang, Qin, Jiajun, Yang, Yunfang, Cheng, Boyu, Liu, Shubin, An, Qi

Publikováno v: Journal of Instrumentation, Vol. 13, Jan. 2018, pp. P01023-1 - P01023-15

Time and charge measurements over a large dynamic range from 1 Photo Electron (P.E.) to 4000 P.E. are required for the Water Cherenkov Detector Array (WCDA), which is one of the key components in the Large High Altitude Air Shower Observatory (LHAASO

Externí odkaz: http://arxiv.org/abs/1909.11427

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An 8-Gs/s 12-Bit TIADC System With Real-Time Broadband Mismatch Error Correction

Autor: Zhao, Lei, Jiang, Zouyi, Dong, Ruoshi, Cao, Zhe, Gao, Xingshun, Cheng, Boyu, Hu, Jiadong, Liu, Shubin, An, Qi

Publikováno v: IEEE Transactions on Nuclear Science, Vol. 65, No. 12, Dec. 2018, pp. 2892-2900

High sampling speed can be achieved using multiple Analog-to-Digital Converters (ADCs) based on the Time-Interleaving A/D Conversion (TIADC) technique. Various types of methods were proposed to correct the mismatch errors among parallel ADC channels

Externí odkaz: http://arxiv.org/abs/1909.10723

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Prototype of a transient waveform recording ASIC

Autor: Qin, Jiajun, Zhao, Lei, Cheng, Boyu, Chen, Han, Guo, Yuxiang, Liu, Shubin, An, Qi

Publikováno v: Journal of Instrumentation, Vol. 13, Jan. 2018, pp. P01004

The paper presents the design and measurement results of a transient waveform recording ASIC based on the Switched Capacitor Array (SCA) architecture. This 0.18 {\mu}m CMOS prototype device contains two channels and each channel employs a SCA of 128

Externí odkaz: http://arxiv.org/abs/1907.02969

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An overdetermined linear equations-based time calibration method for fast sampling ASICs

Autor: Cheng, Boyu, Zhao, Lei, Qin, Jiajun, Chen, Han, Guo, Yuxiang, Liu, Shubin, An, Qi

Publikováno v: Nuclear Inst. and Methods in Physics Research, A, Vol. 916, Feb. 2019, pp. 71-76

A novel time calibration method for waveform sampling application specific integrated circuits (ASICs) based on switched capacitor arrays (SCAs) is proposed in this paper. Precision timing extraction using SCA ASICs has been proved to be a promising

Externí odkaz: http://arxiv.org/abs/1907.02733

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Testing of Front-End Readout Prototype ASICs Designed for WCDA in LHAASO

Autor: Zhou, Shengzhi, Zhao, Lei, Guo, Yuxiang, Dong, Ruoshi, Cheng, Boyu, Qin, Jiajun, Qian, Sifan, Liu, Shubin, An, Qi

The water Cherenkov detector array (WCDA) is one of the key detectors in the large high altitude air shower observatory (LHAASO), which is proposed for very high gamma ray source survey. In WCDA, there are more than 3000 photomultiplier tubes (PMTs)

Externí odkaz: http://arxiv.org/abs/1806.09185

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