کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8171724 | 1526323 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A decay total absorption spectrometer for DESPEC at FAIR
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A decay total absorption spectrometer for DESPEC at FAIR A decay total absorption spectrometer for DESPEC at FAIR](/preview/png/8171724.png)
چکیده انگلیسی
This paper presents the design of a total absorption γ-ray spectrometer for the determination of β-decay intensity distributions of exotic nuclear species at the focal plane of the FAIR-NUSTAR Super Fragment Separator. The spectrometer is a key instrument in the DESPEC experiment and the proposed implementation follows extensive design studies and prototype tests. Two options were contemplated, based on NaI(Tl) and LaBr3:Ce inorganic scintillation crystals respectively. Monte Carlo simulations and technical considerations determined the optimal configurations consisting of sixteen 15Ã15Ã25cm3 crystals for the NaI(Tl) option and one hundred and twenty-eight 5.5Ã5.5Ã11cm3 crystals for the LaBr3:Ce option. Minimization of dead material was crucial for maximizing the spectrometer full-energy peak efficiency. Module prototypes were build to verify constructional details and characterize their performance. The measured energy and timing resolution was found to agree rather well with estimates based on simulations of scintillation light transport and collection. The neutron sensitivity of the spectrometer, important when measuring β-delayed neutron emitters, was investigated by means of Monte Carlo simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 803, 11 December 2015, Pages 36-46
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 803, 11 December 2015, Pages 36-46
نویسندگان
J.L. Tain, A. Algora, J. Agramunt, V. Guadilla, M.D. Jordan, A. Montaner-Pizá, B. Rubio, E. Valencia, D. Cano-Ott, W. Gelletly, T. Martinez, E. Mendoza, Zs. Podolyák, P. Regan, J. Simpson, A.J. Smith, J. Strachan,