کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5493399 | 1526271 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Passive assay of plutonium metal plates using a fast-neutron multiplicity counter
ترجمه فارسی عنوان
آزمایش عنصری صفحات فلز پلوتونیوم با استفاده از چند ضلعی نوترون سریع
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
چکیده انگلیسی
We developed a fast-neutron multiplicity counter based on organic scintillators (EJ-309 liquid and stilbene). The system detects correlated photon and neutron multiplets emitted by fission reactions, within a gate time of tens of nanoseconds. The system was used at Idaho National Laboratory to assay a variety of plutonium metal plates. A coincidence counting strategy was used to quantify the 240Pu effective mass of the samples. Coincident neutrons, detected within a 40-ns coincidence window, show a monotonic trend, increasing with the 240Pu-effective mass (in this work, we tested the 0.005-0.5Â kg range). After calibration, the system estimated the 240Pu effective mass of an unknown sample (240Pueff >50Â g) with an uncertainty lower than 1% in a 4-min assay time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 855, 21 May 2017, Pages 92-101
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 855, 21 May 2017, Pages 92-101
نویسندگان
A. Di Fulvio, T.H. Shin, T. Jordan, C. Sosa, M.L. Ruch, S.D. Clarke, D.L. Chichester, S.A. Pozzi,