کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8175843 | 1526362 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A double-helix neutron detector using micron-size 10B powder
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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 double-helix neutron detector using micron-size 10B powder A double-helix neutron detector using micron-size 10B powder](/preview/png/8175843.png)
چکیده انگلیسی
A double-helix electrode configuration is combined with a 10B powder coating technique to build large-area (9Â in.Ã36 in., or about 23Â cm by 91Â cm) neutron detectors. The neutron detection efficiency for each of the four prototypes is comparable to 3.7Ã103Â cm3 of 3He inside a cylindrical tube 91Â cm long. One unit has been operational continuously for 18 months and the change of efficiency is less than 1%. An analytic model for pulse height spectra is described and the predicted mean film thicknesses agree with the experiment to within 30%. Further detector optimization is possible through film texture, powder size, moderator box and gas. The estimated production cost per unit is less than 3k US$ and the technology is thus suitable for deployment in large numbers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 764, 11 November 2014, Pages 261-267
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 764, 11 November 2014, Pages 261-267
نویسندگان
Zhehui Wang, C.L. Morris, J.D. Bacon, M.I. Brockwell, J.C. Ramsey,