Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (7): 70401-070401.doi: 10.11889/j.0253-3219.2016.hjs.39.070401

Previous Articles     Next Articles

Simulation of momentum resolution of the CEE-TPC in HIRFL

LI He1,2, ZHANG Song1, LU Fei1, ZHONG Chen1, MA Yugang1   

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-04-12 Revised:2016-04-27 Online:2016-07-10 Published:2016-07-08
  • Supported by:

    Supported by National Natural Science Foundation of China (No.U1332129, No.U11322547, No.11421505), the Major State Basic Research Development Program in China (No.2014CB845400)

Abstract:

Background: Time Projection Chamber (TPC) is a kind of high resolution gas detectors developed on the basis of Multi Wire Proportional Chamber (MWPC) and Multi Wire Drift Chamber (MWDC). TPC has an excellent position resolution that can achieve high momentum resolution. Prior to the CEE (Cooler-Storage-Ring (CSR) External-target Experiment)-TPC construction at Heavy Ion Research Facility in Lanzhou (HIRFL), it is necessary to simulate and estimate the performance of this detector. Purpose: This study aims to estimate the momentum resolution of the TPC via a simulation according to designed parameters. Methods: A series of simulation codes including Geant4, Kalman Filter and other programs were applied to the evaluation of momentum resolution for CEE-TPC using corresponding parameters. Three particles, i.e., π meson, proton and deuteron, were used for simulation study and other influence factors on momentum resolution were analyzed. Results: It is found that the typical momentum resolution of these three particles is about 5%. Conclusion: According to the simulation results, CEE-TPC can meet the requirements in the heavy ion collisions experiment at CSR to identify three typical particles, i.e., π meson, proton and deuteron. It can provide referable technical parameters for the construction of the future CEE-TPC.

Key words: TPC, Momentum resolution, Monte Carlo simulation

CLC Number: 

  • O571