Position Reconstruction in a Dual Phase Xenon Scintillation Detector

被引：48

作者：

Solovov, V. N. ^{[1
,2
]}

Belov, V. A. ^{[3
]}

Akimov, D. Yu ^{[3
]}

Araujo, H. M. ^{[4
]}

Barnes, E. J. ^{[5
]}

Burenkov, A. A. ^{[3
]}

Chepel, V. ^{[1
,2
]}

Currie, A. ^{[4
]}

DeViveiros, L. ^{[1
,2
]}

Edwards, B. ^{[6
]}

Ghag, C. ^{[5
]}

Hollingsworth, A. ^{[5
]}

Horn, M. ^{[4
]}

Kalmus, G. E. ^{[6
]}

Kobyakin, A. S. ^{[3
]}

Kovalenko, A. G. ^{[3
]}

Lebedenko, V. N. ^{[3
,4
]}

Lindote, A. ^{[1
,2
]}

Lopes, M. I. ^{[1
,2
]}

Luescher, R. ^{[6
]}

Majewski, P. ^{[6
]}

Murphy, A. S. J. ^{[5
]}

Neves, F. ^{[1
,2
]}

Paling, S. M. ^{[6
]}

Pinto da Cunha, J. ^{[1
,2
]}

Preece, R. ^{[6
]}

Quenby, J. J. ^{[4
]}

Reichhart, L. ^{[5
]}

Scovell, P. R. ^{[5
]}

Silva, C. ^{[1
,2
]}

Smith, N. J. T. ^{[6
]}

Smith, P. F. ^{[6
]}

Stekhanov, V. N.

Sumner, T. J. ^{[4
]}

Thorne, C. ^{[4
]}

Walker, R. J. ^{[4
]}

机构：

[1] Univ Coimbra, LIP Coimbra, P-3000 Coimbra, Portugal

[2] Univ Coimbra, Dept Phys, P-3000 Coimbra, Portugal

[3] Inst Theoret & Expt Phys, Moscow 117259, Russia

[4] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, High Energy Phys Grp, London SW7 2AZ, England

[5] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH8 9YL, Midlothian, Scotland

[6] STFC Rutherford Appleton Lab, Particle Phys Dept, Chilton, England

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2012年 / 59卷 / 06期

关键词：

Dark matter; dual phase detectors; liquid xenon; maximum likelihood; position reconstruction; scintillation camera; weighted least squares; weakly interacting massive particles (WIMPs); ZEPLIN-III; DARK-MATTER;

D O I：

10.1109/TNS.2012.2221742

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liquid xenon detector. An iterative method was developed for in-situ reconstruction of the PMT light response functions from calibration data taken with an uncollimated gamma-ray source. Using the techniques described, the performance of the ZEPLIN-III dark matter detector was studied for 122 keV gamma-rays. For the inner part of the detector (R < 100 mm), spatial resolutions of 13 mm and 1.6 mm FWHM were measured in the horizontal plane for primary and secondary scintillation, respectively. An energy resolution of 8.1% FWHM was achieved at that energy. The possibility of using this technique for improving performance and reducing cost of scintillation cameras for medical applications is currently under study.

引用

页码：3286 / 3293

页数：8

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