کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8166700 | 1526239 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of a lithium fluoride zinc sulfide based neutron multiplicity counter
ترجمه فارسی عنوان
توسعه ناقل چندتایی بر پایه سولفید روی لیتیم فلوراید
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
چکیده انگلیسی
The feasibility of a full-scale lithium fluoride zinc sulfide (LiF/ZnS) based neutron multiplicity counter has been demonstrated. The counter was constructed of modular neutron detecting stacks that each contain five sheets of LiF/ZnS interleaved between six sheets of wavelength shifting plastic with a photomultiplier tube on each end. Twelve such detector stacks were placed around a sample chamber in a square arrangement with lithiated high-density polyethylene blocks in the corners to reflect high-energy neutrons and capture low-energy neutrons. The final system design was optimized via modeling and small-scale test. Measuring neutrons from a 252Cf source, the counter achieved a 36% neutron detection efficiency (ϵ) and an 11.7μs neutron die-away time (Ï) for a doubles figure-of-merit (ϵ2âÏ) of 109. This is the highest doubles figure-of-merit measured to-date for a 3He-free neutron multiplicity counter.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 887, 11 April 2018, Pages 59-63
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 887, 11 April 2018, Pages 59-63
نویسندگان
Christian Cowles, Spencer Behling, Phoenix Baldez, Micah Folsom, Richard Kouzes, Vladislav Kukharev, Azaree Lintereur, Sean Robinson, Edward Siciliano, Sean Stave, Patrick Valdez,