Radiation hardness of plastic scintillators for the Tile Calorimeter of the ATLAS detector

被引：10

作者：

Jivan, H. ^{[1
]}

Sideras-Haddad, E. ^{[1
]}

Erasmus, R. ^{[1
]}

Liao, S. ^{[1
]}

Madhuku, M. ^{[2
]}

Peters, G. ^{[1
]}

Sekonya, K. ^{[1
,2
]}

Solvyanov, O. ^{[3
]}

机构：

[1] Univ Witwatersrand, Sch Phys, ZA-2050 Johannesburg, South Africa

[2] iThemba LABS, ZA-2000 Johannesburg, South Africa

[3] European Org Nucl Res CERN, CH-1211 Geneva 23, Switzerland

来源：

HIGH ENERGY PARTICLE PHYSICS WORKSHOP (HEPPW2015) | 2015年 / 645卷

关键词：

D O I：

10.1088/1742-6596/645/1/012019

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The radiation damage in polyvinyl toluene based plastic scintillator EJ200 obtained from ELJEN technology was investigated. This forms part of a comparative study conducted to aid in the upgrade of the Tile Calorimeter of the ATLAS detector during which the Gap scintillators will be replaced. Samples subjected to 6 MeV proton irradiation using the tandem accelerator of iThemba LABS, were irradiated with doses of approximately 0.8 MGy, 8 MGy, 25 MGy and 80 MGy. The optical properties were investigated using transmission spectroscopy and light yield analysis whilst structural damage was assessed using Raman spectroscopy. Findings indicate that for the dose of 0.8 MGy, no structural damage occurs and light loss can be attributed to a breakdown in the light transfer between base and fluor dopants. For doses of 8 MGy to 80 MGy, structural damage leads to possible hydrogen loss in the benzene ring of the PVT base which forms free radicals. This results in an additional absorptive component causing increased transmission loss and light yield loss with increasing dose.

引用

页数：6

共 5 条

[1] [Anonymous], 2008, JINST, V3, pS08007
[2] Chen M., 2011, QUEENS U PHYS 352 ME
[3] ELJEN Technology, 2013, PROD PLAST SCINT
[4] Knoll G. F., 1999, RAD DETECTION MEASUR, P220
[5] A PEDESTRIANS GUIDE TO RADIATION-DAMAGE IN PLASTIC SCINTILLATORS
ZORN, C
[J]. RADIATION PHYSICS AND CHEMISTRY, 1993, 41 (1-2): : 37 - 43

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