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Position Reconstruction in a Dual Phase Xenon Scintillation Detector
- Publication Year :
- 2011
-
Abstract
- 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.<br />Comment: 8 pages, 7 figures, in the Conference Record of IEEE NSS 2011, accepted for publication in IEEE Trans. on Nuc. Sci
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1112.1481
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1109/TNS.2012.2221742