期刊论文

Performance simulation of a Shashlik sampling electromagnetic calorimeter for NICA-MPD

Wang, X.

中文

核技术

0253-3219

2021

44

8

18-28

10.11889/j.0253-3219.2021.hjs.44.080201

Supported by Foundation of Ministry of Science and Technology of China (No.2020YFE0202001), National Natural Science Foundation of China (No.11875163, No.11605086), Natural Science Foundation of Hunan Province (No.2018JJ3422) and Department of Education of Hunan Province (No.18C0461, No.19B487, No.19C1596, No.19B488)

本校为第一机构

俄罗斯重离子超导同步加速器的多功能探测器（Nuclotron-based Ion Collider Facility’s MultiPurpose Detector,NICA-MPD）采用Shashlik取样型电磁量能器（Electromagnetic Calorimeter,ECAL）,设计为由32个扇区组成的圆柱形桶共包含有43 008个构层（tower）,每个tower由220层吸收体铅片与塑料闪烁体片交替组成。本文对影响其性能的多个参数进行了模拟研究,利用GEANT4软件模拟了影响电磁量能器的能量沉积、能量泄漏、能量分辨率等多种参数。模拟结果表明:不同物质作为吸收体时,高原子序数（Z）物质有利于能量沉积,并且能量主要沉积在吸收体中,占比为65%左右;在兼顾能量分辨率与位置分辨率需求...

Background: The Shashlik electromagnetic calorimeter (ECAL) is used in the Nuclotron-based Ion Collider Facility's MultiPurpose detector (NICA-MPD) of the Russian heavy ion superconducting synchrotron. It is designed as a cylindrical barrel divided into 32 sectors with a total of 43 008 towers. Each tower is composed of 220 layers of lead and 221 layers of scintillator alternately. Purpose: This study aims to simulate multiple parameters of Shashlik ECAL for NICA-MPD that affect the performance of ECAL. Methods: First of all, the module of ECAL...