Electrostatic-lenses position-sensitive TOF MCP detector for beam diagnostics and new scheme for mass measurements at HIAF

Jun-Hao Liu; Zhuang Ge; Qian Wang; Geng Wang; Li-Na Sheng; Wen-Wen Ge; Xing Xu; Peng Shuai; Qi Zeng; Bo Wu

doi:10.1007/s41365-019-0676-1

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Electrostatic-lenses position-sensitive TOF MCP detector for beam diagnostics and new scheme for mass measurements at HIAF

NUCLEAR ELECTRONICS AND INSTRUMENTATION | Updated：2021-02-01

- Electrostatic-lenses position-sensitive TOF MCP detector for beam diagnostics and new scheme for mass measurements at HIAF
- Nuclear Science and Techniques Vol. 30, Issue 10, Article number: 152(2019)
- Affiliations：
  
  1.University of Chinese Academy of Sciences, Beijing 100049, China
  2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  3.School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China
- Author bio：
  
  Corresponding author, gezhuang@impcas.ac.cn
- Funds：
- DOI：10.1007/s41365-019-0676-1
  CLC：
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Jun-Hao Liu, Zhuang Ge, Qian Wang, et al. Electrostatic-lenses position-sensitive TOF MCP detector for beam diagnostics and new scheme for mass measurements at HIAF. [J]. Nuclear Science and Techniques 30(10):152(2019)
DOI：

Jun-Hao Liu, Zhuang Ge, Qian Wang, et al. Electrostatic-lenses position-sensitive TOF MCP detector for beam diagnostics and new scheme for mass measurements at HIAF. [J]. Nuclear Science and Techniques 30(10):152(2019) DOI： 10.1007/s41365-019-0676-1.

摘要

Abstract

A foil–microchannel plate (MCP) detector, which uses electrostatic lenses and possesses both good position and timing resolutions, has been designed and simulated for beam diagnostics and mass measurements at the next-generation heavy-ion-beam facility HIAF in China. Characterized by low energy loss and good performances of timing and position measurements, it would be located at focal planes in fragment separator HFRS for position monitoring, beam turning,Bρ, measurement, and trajectory reconstruction. Moreover, it will benefit the building-up of a magnetic-rigidity–energy-loss–time-of-flight (,Bρ,–ΔE–TOF) method at HFRS for high-precision in-flight particle identification (PID) of radioactive isotope (RI) beams on an event-by-event basis. Most importantly, the detector can be utilized for in-ring TOF and position measurements, beam-line TOF measurements at two achromatic foci, and position measurements at a dispersive focus of HFRS, thus making it possible to use two complementary mass measurement methods (isochronous mass spectrometry (IMS) at the storage ring SRing and magnetic-rigidity–time-of-flight (,Bρ,-TOF) at the beam-line HFRS) in one single experimental run.

关键词

Keywords

Microchannel plateElectrostatic lensesDetectorPosition-sensitiveTime-of-flightMass measurementsHIAF

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