Correction of PMT position effect for a lead-scintillating fiber electromagnetic calorimeter

LI Zu-Hao; WANG Ling-Yu; XU Wei-Wei; CHEN Guo-Ming; CHEN He-Sheng

doi:10.1088/1674-1137/37/2/026201

Chinese Physics C> 2013, Vol. 37> Issue(2) : 026201 DOI: 10.1088/1674-1137/37/2/026201

Correction of PMT position effect for a lead-scintillating fiber electromagnetic calorimeter

Abstract
HTML
Reference
Related

PDF

Abstract：
The position effect of the photoelectron multiplier tube (PMT) of the electromagnetic calorimeter (ECAL) of Alpha Magnetic Spectrometer-02 (AMS-02) has been studied with beam-test data. The reconstructed deposited energy in a layer versus incidence position in the cell can be described by Gaussian distribution, maximum and minimum value can be obtained when the particle passes across the center and the edge of a cell respectively. The distribution can be used to correct the effect of incidence position on energy reconstruction. Much better energy resolution was acquired be got with the correction, for 100 GeV electrons, energy resolution improved from 3% to 2%.

References

[1]

Battiston R et al. Astropart. Phys., 2000, 13: 51-74[2] Antonelli M et al. Nuclear Physics B, 1977, 54: 14-19[3] Cadoux F et al. Nuclear Physics B, 2002, 113(Proc.Suppl.): 159-165[4] Di Falco Stefano. Advances in Space Research, 2010, 45(1): 112-122[5] Kossakowski R et al. AMSNote-2002-01-03[6] LI Zu-Hao et al. HEP NP, 2004, 28: 521-525 (in Chinese)[7] Longo E, Sestili I. Nuclear Instrument Methods, 1975, 128: 283[8] LI Zu-Hao et al. HEP NP, 2004, 28: 1182-1188 (in Chinese)

Access

Get Citation

LI Zu-Hao, WANG Ling-Yu, XU Wei-Wei, CHEN Guo-Ming, CHEN He-Sheng and Correction of PMT position effect for a lead-scintillating fiber electromagnetic calorimeter[J]. Chinese Physics C, 2013, 37(2): 026201. doi: 10.1088/1674-1137/37/2/026201

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2012-03-06
Revised: 2012-03-26

Article Metric

Article Views(4033)
PDF Downloads(289)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Correction of PMT position effect for a lead-scintillating fiber electromagnetic calorimeter

Corresponding author: LI Zu-Hao,

Received Date: 2012-03-06
Accepted Date: 2012-03-26
Available Online: 2013-02-05

Abstract: The position effect of the photoelectron multiplier tube (PMT) of the electromagnetic calorimeter (ECAL) of Alpha Magnetic Spectrometer-02 (AMS-02) has been studied with beam-test data. The reconstructed deposited energy in a layer versus incidence position in the cell can be described by Gaussian distribution, maximum and minimum value can be obtained when the particle passes across the center and the edge of a cell respectively. The distribution can be used to correct the effect of incidence position on energy reconstruction. Much better energy resolution was acquired be got with the correction, for 100 GeV electrons, energy resolution improved from 3% to 2%.