کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9844940 | 1526503 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Micro-pocket fission detectors (MPFD) for in-core neutron flux monitoring
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Micro-pocket fission detectors (MPFD) have been fabricated and tested as in-core flux monitors in the 250Â kW TRIGA nuclear reactor at Kansas State University. The prototype devices have been coated with a natural uranyl-nitrate to provide a neutron reactive coating. The devices are composed of alumina substrates sealed together to form a miniature gas pocket 3Â mm in diameter and 1Â mm wide. The devices are radiation hard and can operate in pulse mode in a neutron flux exceeding 1012Â cmâ2Â sâ1. Placed in the central thimble of the reactor core, the MPFDs have shown count rate linearity from low to high power. Dead time losses become apparent at power levels exceeding 100Â kW, yet are still low enough to allow for pulse mode operation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 554, Issues 1â3, 1 December 2005, Pages 494-499
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 554, Issues 1â3, 1 December 2005, Pages 494-499
نویسندگان
Douglas S. McGregor, Martin F. Ohmes, Rylan E. Ortiz, A.S.M. Sabbir Ahmed, J. Kenneth Shultis,