کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1831717 | 1027503 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
X-ray and gamma-ray response of a 2â³Ã2â³ LaBr3:Ce scintillation detector
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: X-ray and gamma-ray response of a 2â³Ã2â³ LaBr3:Ce scintillation detector X-ray and gamma-ray response of a 2â³Ã2â³ LaBr3:Ce scintillation detector](/preview/png/1831717.png)
چکیده انگلیسی
Advances in material growth techniques have recently made large volume LaBr3:Ce crystals commercially available. These scintillators are currently being assessed by ESA for use as remote sensing gamma-ray spectrometers on future planetary missions. In addition to their superior scintillation properties (high light output, fast time response and good stopping power), they offer significant benefits when designing gamma-ray detection systems for resource-limited spacecraft-not only in terms of resources but also in terms of reliability and robustness. We present the results of an investigation into the gamma-ray detection properties of a 2â³Ã2â³ LaBr3:Ce crystal, characterized using radioactive sources over the energy range 14-3220 keV. The response of the crystal was found to be largely linear over the upper 95% of the dynamic range, the deviations at lower energies can be attributed to the shortcomings of the PMT. Compared to smaller volume crystals, no substantial degradation in light output, or alternately, energy resolution has been observed. For example, at 662 keV, an energy resolution of 3% FWHM was measured. Experiments with monoenergetic protons show that they create approximately half the light output of gamma-rays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 574, Issue 1, 21 April 2007, Pages 115-120
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 574, Issue 1, 21 April 2007, Pages 115-120
نویسندگان
F. Quarati, A.J.J. Bos, S. Brandenburg, C. Dathy, P. Dorenbos, S. Kraft, R.W. Ostendorf, V. Ouspenski, Alan Owens,