Development of a multi-channel readout ASIC for a fast neutron spectrometer based on GEM-TPC

HE Li; DENG Zhi; LIU Yi-Nong; LI Yu-Lan

doi:10.1088/1674-1137/38/10/106101

Chinese Physics C> 2014, Vol. 38> Issue(10) : 106101 DOI: 10.1088/1674-1137/38/10/106101

Development of a multi-channel readout ASIC for a fast neutron spectrometer based on GEM-TPC

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Abstract：
A multi-channel front-end ASIC has been developed for a fast neutron spectrometer based on Gas Electron Multiplier (GEM)-Time Projection Chamber (TPC). Charge Amplifier and Shaping Amplifier for GEM (CASAGEM) integrates 16+1 channels: 16 channels for anodes and 1 channel for cathode. The gain and the shaping time are adjustable from 2 to 40 mV/fC and from 20 to 80 ns, respectively. The prototype ASIC is fabricated in 0.35 μ CMOS process. An evaluation Print Circuit Board (PCB) was also developed for chip tests. In total 20 chips have been tested. The integrated nonlinearity is less than 1%. The equivalent noise electrons is less than 2000e when the input capacitor is 50 pF. The time jitter is less than 1 ns. The design and the test results are presented in the paper.

References

[1]

HUANG Meng, LI Yu-Lan, DENG Zhi et al. IEEE Nuclear Science Symposium Conference Record, 2012. 146-148[2] DENG Zhi, DENG Xiao, LI Yan-Cun et al. IEEE Nuclear Science Symposium Conference Record, 2007. 299-301[3] Baron P, Calvet D, Delagnes E et al. IEEE Trans. Nucl. Sci., 2008, 55: 1744-1752[4] Peric I, Blanquart L, Comes G et al. Nucl. Instrum. Methods A, 2006, 565: 178-187[5] Bosch R, Parga A, Mota B, Musa L. IEEE Trans. Nucl. Sci., 2003, 50: 2460-2469[6] O'Connor P, Gianluigi G. Nucl. Instrum. Methods A, 1999, 421: 322-333[7] Kappler S, Kaminski J, Ledermann B et al. IEEE Trans. Nucl. Sci., 2004, 51: 1524-1528

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HE Li, DENG Zhi, LIU Yi-Nong and LI Yu-Lan. Development of a multi-channel readout ASIC for a fast neutron spectrometer based on GEM-TPC[J]. Chinese Physics C, 2014, 38(10): 106101. doi: 10.1088/1674-1137/38/10/106101

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Received: 2013-11-05
Revised: 2014-02-25

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沈阳化工大学材料科学与工程学院沈阳 110142

Development of a multi-channel readout ASIC for a fast neutron spectrometer based on GEM-TPC

Corresponding author: HE Li,

Corresponding author: DENG Zhi,

Received Date: 2013-11-05
Accepted Date: 2014-02-25
Available Online: 2014-10-05

Abstract: A multi-channel front-end ASIC has been developed for a fast neutron spectrometer based on Gas Electron Multiplier (GEM)-Time Projection Chamber (TPC). Charge Amplifier and Shaping Amplifier for GEM (CASAGEM) integrates 16+1 channels: 16 channels for anodes and 1 channel for cathode. The gain and the shaping time are adjustable from 2 to 40 mV/fC and from 20 to 80 ns, respectively. The prototype ASIC is fabricated in 0.35 μ CMOS process. An evaluation Print Circuit Board (PCB) was also developed for chip tests. In total 20 chips have been tested. The integrated nonlinearity is less than 1%. The equivalent noise electrons is less than 2000e when the input capacitor is 50 pF. The time jitter is less than 1 ns. The design and the test results are presented in the paper.