کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8251392 | 1533477 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neutron sensitivity of 6Li-based suspended foil microstrip neutron detectors using Schott Borofloat® 33 microstrip electrodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Neutron sensitivity of 6Li-based suspended foil microstrip neutron detectors using Schott Borofloat® 33 microstrip electrodes Neutron sensitivity of 6Li-based suspended foil microstrip neutron detectors using Schott Borofloat® 33 microstrip electrodes](/preview/png/8251392.png)
چکیده انگلیسی
6Li foils, each 75-µm thick, were positioned between a Schott Borofloat® 33 microstrip electrode and a planar drift electrode to construct suspended foil microstrip neutron detectors. MCNP6 simulations of two detector configurations, one containing a single 6Li foil and the other containing five 6Li foils, indicated expected maximum intrinsic thermal-neutron detection efficiencies of 18.36% and 54.08%, respectively. For comparison, the intrinsic thermal-neutron detection efficiency as a function of thermal-neutron beam position along the foil span was experimentally measured for both detector configurations. A non-uniform intrinsic thermal-neutron detection efficiency distribution was observed along the span of the 6Li foil(s) between the microstrip and drift electrodes. Maximum intrinsic thermal-neutron detection efficiencies of 12.58â¯Â±â¯0.15% and 29.75â¯Â±â¯0.26% for the single and five 6Li foils were measured, respectively. Gamma-ray rejection ratios of 6.46â¯Ãâ¯10â5 ±â¯4.32â¯Ãâ¯10â7 and 7.96â¯Ãâ¯10â5 ±â¯4.65â¯Ãâ¯10â7 were also measured, respectively, for a 137Cs exposure rate of 50 mRâ¯hâ1. All measurements were conducted with the 6Li foil(s) contained within a sealed aluminum enclosure pressurized with 10â¯psig of P-10 gas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 147, June 2018, Pages 70-76
Journal: Radiation Physics and Chemistry - Volume 147, June 2018, Pages 70-76
نویسندگان
Nathaniel S. Edwards, Benjamin W. Montag, Luke C. Henson, Steven L. Bellinger, Daniel M. Nichols, Michael A. Reichenberger, Ryan G. Fronk, Douglas S. McGregor,