کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8173125 | 1526338 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurements of fusion neutron yields by neutron activation technique: Uncertainty due to the uncertainty on activation cross-sections
ترجمه فارسی عنوان
اندازه گیری عملکرد نوترون فیوژن با تکنیک فعال سازی نوترون: عدم اطمینان ناشی از عدم قطعیت در مقاطع فعال سازی
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کلمات کلیدی
عملکرد نوترون فیوژن، روش فعال سازی عدم اطمینان از مقاطع دوزیستی،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
چکیده انگلیسی
The neutron activation technique is routinely used in fusion experiments to measure the neutron yields. This paper investigates the uncertainty on these measurements as due to the uncertainties on dosimetry and activation reactions. For this purpose, activation cross-sections were taken from the International Reactor Dosimetry and Fusion File (IRDFF-v1.05) in 640 groups ENDF-6 format for several reactions of interest for both 2.5 and 14Â MeV neutrons. Activation coefficients (reaction rates) have been calculated using the neutron flux spectra at JET vacuum vessel, both for DD and DT plasmas, calculated by MCNP in the required 640-energy group format. The related uncertainties for the JET neutron spectra are evaluated as well using the covariance data available in the library. These uncertainties are in general small, but not negligible when high accuracy is required in the determination of the fusion neutron yields.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 788, 11 July 2015, Pages 168-172
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 788, 11 July 2015, Pages 168-172
نویسندگان
Gediminas Stankunas, Paola Batistoni, Henrik Sjöstrand, Sean Conroy, JET Contributors JET Contributors,