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

被引：7

作者：

He Li ^{[1
,2
]}

Deng Zhi ^{[1
,2
]}

Liu Yi-Nong ^{[1
,2
]}

Li Yu-Lan ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Key Lab Particle & Radiat Imaging, Minist Educ, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

来源：

CHINESE PHYSICS C | 2014年 / 38卷 / 10期

基金：

中国国家自然科学基金;

关键词：

front-end; readout electronics; ASIC; TPC; GEM; DETECTORS; CHIP;

D O I：

10.1088/1674-1137/38/10/106101

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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 mu m 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.

引用

页数：5

共 7 条

[1] AFTER, an ASIC for the readout of the large T2K Time Projection Chambers [J].