Energy calibration of laterally segmented electromagnetic calorimeters based on neutral pion detection

doi:10.1007/s41365-017-0320-x

Abstract

Abstract:

This paper describes a method for energy calibration of laterally segmented electromagnetic calorimeters based on the detection of two-photon decays of π⁰ mesons. The calibration procedure performs a χ² function minimization between the measured π⁰ energy in the calorimeter and its expected energy deduced from the π⁰ momentum direction. The performance of this technique is demonstrated with a Monte Carlo simulation of an experimental case where biased calibration coefficients are employed. The real calibration coefficients are restored with less than 1% relative accuracy when a sufficient number of π⁰ is detected. This technique is applied to monitor daily the calibration coefficients of the calorimeter used in the Jefferson Lab Hall A DVCS experiments.

Key words: Electromagnetic calorimeters, Energy calibration, Detector modeling and simulations, Data processing methods

[1]	Jia-Tai Li, Xue-Dou Su, Gao-Long Zhang, Guang-Xin Zhang, Shi-Peng Hu, Jing-Bin Lu, Yi-Feng Lv, Hui-Bin Sun, Huan-Qiao Zhang, D. Testov, P. R. John, J. J. Valiente-Dobo´n, A. Goasduff, M. Siciliano, F. Galtarossa, F. Recchia, D. Mengoni, D. Bazzacco. Energy calibration of HPGe detector using the high-energy characteristic γ rays in ¹³C formed in ⁶Li + ¹²C reaction [J]. Nuclear Science and Techniques, 2020, 31(5): 49-49.
[2]	Dongdong ZHOU, Simei YOU, Jie XIN, Cuiping YANG, Wanxin WEN, Yue YANG, Baoguo ZHANG, Rensheng WANG, Ming ZHANG. Development of a 4π phoswich detector for measuring radioactive inert gases [J]. Nuclear Techniques, 2020, 43(5): 50401-050401.
[3]	Yue Zhang, Hong-Wei Wang, Yu-Gang Ma, Long-Xiang Liu, Xi-Guang Cao, Gong-Tao Fan, Guo-Qiang Zhang, De-Qing Fang. Energy calibration of a CR-39 nuclear-track detector irradiated by charged particles [J]. Nuclear Science and Techniques, 2019, 30(6): 87-87.
[4]	WANG Zesong, ZHANG Rui, TIAN Canxin, WANG Zhenguo, FU Dejun. A calibration method of terminal voltage on the megavolt low energy accelerator [J]. Nuclear Techniques, 2018, 41(10): 100201-100201.
[5]	Hang-Hua Xu, Hai-Long Wu, Gong-Tao Fan, Jian-Hui Chen, Dong Wang. A new consecutive energy calibration method for X/c detectors based on energy continuously tunable laser Compton scattering light source [J]. Nuclear Science and Techniques, 2017, 28(9): 121-121.
[6]	WANG Tingting, WANG Liang, MO Zhaohong, ZHAO Deshan, XIONG Zhonghua. Theoretical simulation and experimental research of the light output function of liquid scintillator EJ339A [J]. Nuclear Techniques, 2016, 39(5): 50403-050403.
[7]	CHANG Le, LIU Yingdu, DU Long, WANG Yuting, CAO Xiguang, ZHANG Guoqiang, WANG Hongwei, MA Chunwang, ZHANG Song, ZHONG Chen, LI Chen. Pulse shape discrimination and energy calibration of EJ301 liquid scintillation detector [J]. Nuclear Techniques, 2015, 38(2): 20501-020501.
[8]	TAO Shixing, ZHU Jing, NIU Jing, CHEN Mingzhi, LIU Ke, WANG Yu, WANG Qisheng, SUN Bo, HUANG Sheng, TANG Lin, HE Jianhua. In-situ energy calibration of SSRF macromolecular crystallography beamline using powder diffraction [J]. Nuclear Science and Techniques, 2010, 21(6): 321-321-324.
[9]	CHENG Cheng, WEI Yong-Bo, JIANG Da-Zhen. Use of sampling based correction for non-radioactivity X-ray energy calibration [J]. Nuclear Science and Techniques, 2005, 16(3): 167-167.

Nuclear Science and Techniques

Energy calibration of laterally segmented electromagnetic calorimeters based on neutral pion detection

Abstract

References

Related Articles 9

Metrics

Comments

0