兰州重离子储存环外靶实验终端时间投影室的动量分辨率模拟

李贺; 张松; 卢飞; 钟晨; 马余刚

doi:10.11889/j.0253-3219.2016.hjs.39.070401

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兰州重离子储存环外靶实验终端时间投影室的动量分辨率模拟

核电子学与仪器 | 更新时间：2021-05-24

- 兰州重离子储存环外靶实验终端时间投影室的动量分辨率模拟
- Simulation of momentum resolution of the CEE-TPC in HIRFL
- 核技术 2016年39卷第7期文章编号：070401
- 作者机构：
  
  1.中国科学院上海应用物理研究所嘉定园区上海 201800;
  2.中国科学院大学北京 100049
- 作者简介：
  
  [ "李贺,男,1990年出生,2009年毕业于兰州大学,现为硕士研究生,核能科学与工程专业", "LI He, male, born in 1990, graduated from Lanzhou University in 2009, master student, major in nuclear energy science and engineering Corresponding author: LU Fei, E-mail: lufei@sinap.ac.cn" ]
  卢飞, E-mail:lufei@sinap.ac.cn LU Fei, E-mail:lufei@sinap.ac.cn
- 基金信息：
  
  国家自然科学基金(No.U1332129、No.U11322547、No.11421505);国家重点基础研究发展计划项目资助(No.2014CB845400)
- DOI：10.11889/j.0253-3219.2016.hjs.39.070401
  中图分类号： O571
- 收稿日期：2016-04-12，
  
  修回日期：2016-04-27，
  
  纸质出版日期：2016-07
- 稿件说明：
移动端阅览
李贺, 张松, 卢飞, 等. 兰州重离子储存环外靶实验终端时间投影室的动量分辨率模拟[J]. 核技术, 2016,39(7):070401

He LI, Song ZHANG, Fei LU, et al. Simulation of momentum resolution of the CEE-TPC in HIRFL[J]. Nuclear techniques, 2016, 39(7): 070401
李贺, 张松, 卢飞, 等. 兰州重离子储存环外靶实验终端时间投影室的动量分辨率模拟[J]. 核技术, 2016,39(7):070401 DOI： 10.11889/j.0253-3219.2016.hjs.39.070401.

He LI, Song ZHANG, Fei LU, et al. Simulation of momentum resolution of the CEE-TPC in HIRFL[J]. Nuclear techniques, 2016, 39(7): 070401 DOI： 10.11889/j.0253-3219.2016.hjs.39.070401.

摘要

时间投影室（Time Projection Chamber

TPC）是在多丝正比室（Multi Wire Proportional Chamber

MWPC）和多丝漂移室（Multi Wire Drift Chamber

MWDC）的基础上发展起来的一种高空间分辨粒子径迹探测器。因其具有很高的位置分辨能力，从而可以获得很好的动量分辨率。在开展兰州重离子储存环外靶实验终端CEE （Cooler-Storage-Ring External-target Experiment）-TPC的建造之前，估算CEE-TPC的动量分辨能力是一项很有必要的工作。基于Geant4和Kalman Filter等模拟程序，对时间投影室探测器测量带电粒子的整个过程进行了蒙特卡罗模拟，给出了CEE-TPC探测不同种类的带电粒子的动量分辨率，并且对影响探测器动量分辨率的因素进行了分析。通过模拟计算，得到了CEE-TPC对π介子、质子和氘核的典型动量分辨率在5%左右，能够较好地鉴别这三种粒子，为未来CEE-TPC的建造提供了可供参考的技术参数。

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 requ

irements 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.

关键词

Keywords

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