کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10715981 | 1027430 | 2009 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neutron damage tests of a highly segmented germanium crystal
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
To evaluate the effect of neutron damage on the performance of highly segmented germanium detectors the P3 prototype detector for the GRETINA array was subjected to a neutron flux of â¼3Ã109Â n/cm2 over a period of 5 days. During the irradiation, the resolution (full-width half-maximum (FWHM)) of the 1332Â keV 60Co photopeak increased from â¼1.8 to â¼6.0Â keV while the full-width at tenth maximum (FWTM) increased from â¼4Â keV to more than 12Â keV. Following the irradiation the detector was successfully annealed and the energy resolution returned to pre-irradiation values. All detector segments were fully functional before and after the annealing and following multiple room-temperature cycles. A comparison of digitized pulse shapes in the damaged and annealed detector indicates that the effect of extreme neutron damage (FWHM=6Â keV) on the position resolution is on the order of â¼1.7Â mm while for 3Â keV resolution the position resolution degrades by â¼0.5Â mm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 606, Issue 3, 21 July 2009, Pages 533-544
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 606, Issue 3, 21 July 2009, Pages 533-544
نویسندگان
T.J. Ross, C.W. Beausang, I.Y. Lee, A.O. Macchiavelli, S. Gros, M. Cromaz, R.M. Clark, P. Fallon, H. Jeppesen, J.M. Allmond,