Performance Study of Small Active Target Time Projection Chamber

被引：0
|
作者：
Xu J. [1 ]
Yang L. [1 ]
Li Q. [1 ]
Ye Y. [1 ]
Han J. [1 ]
Bai S. [1 ]
Gao J. [1 ]
机构：
[1] State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing
来源：
Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2020年 / 54卷 / 06期
关键词：
Active target time projection chamber; Drift electric field distribution; Guard ring; Position resolution; Α+α elastic scattering;
D O I：
10.7538/yzk.2020.youxian.0063
中图分类号：
学科分类号：
摘要：
An active target time projection chamber (AT-TPC) was designed and its performance was tested. The chamber has an active tracking volume of 10 cm×10 cm×14 cm, which is equipped with two layers of thick gas electron multiplier (THGEM) and connected to 64 readout strips. A guard ring was also integrated above the GEM foils in order to adjust the electric field in the gas vessel, which allowed to improve the overall performance of the system. At a guard ring HV of -950 V, the AT-TPC achieved a tracking position resolution better than 0.2 mm, an angular resolution below 0.6° and a time resolution better than 20 ns, obtained from α particles test. By using the gas mixture 96%He+4%CO2 as the sensitive working gas as well as the target material, the α+α elastic scattering events can be clearly imaged. © 2020, Editorial Board of Atomic Energy Science and Technology. All right reserved.
引用
收藏
页码：1068 / 1073
页数：5
相关论文
共 27 条
  • [1] CHARPAK G, BOUCLIER R, BRESSANI T, Et al., Some read-out system for proportional multiwire chambers, Nuclear Instruments and Methods, 65, pp. 217-220, (1968)
  • [2] YE Y L, DI Z Y, LI Z H, Et al., Study and application of low pressure multi-wire proportional chambers, Nuclear Instruments and Methods, 515, pp. 718-724, (2003)
  • [3] HAN L Y, LI Q T, FAISAL Q, Et al., Study of a multi-wire proportional chamber with a cathode strip and delay-line readout, Chinese Physics C, 33, pp. 364-368, (2009)
  • [4] FONTE P., Applications and new developments in resistive plate chambers, IEEE Transactions on Nuclear Science, 49, pp. 881-887, (2002)
  • [5] YING J, YE Y L, BAN Y, Et al., Beam test results of a resistive plate chamber made of Chinese bakelites, Nuclear Instruments and Methods, 459, pp. 513-522, (2001)
  • [6] LI Q T, YE Y L, WEN C, Et al., Study of spatial resolution properties of a glass RPC, Nuclear Instruments and Methods, 663, pp. 22-25, (2012)
  • [7] BLUM W, ROLANDI L., Particle detection with drift chambers, (1994)
  • [8] MARX J N, NYGREN D R., The time projection chamber, Physics Today, 31, pp. 46-53, (1978)
  • [9] BRAND C, CAIRANTI G, CHARPENTIER P, Et al., The DELPHI time projection chamber, Nuclear Instruments and Methods, 283, pp. 567-572, (1989)
  • [10] ANDERSON M, BIESER F, BOSSINGHAM R, Et al., The STAR time projection chamber: A unique tool for studying high multiplicity events at RHIC, Nuclear Instruments and Methods, 499, pp. 659-678, (2003)
123