کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8174505 1526354 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neutron spatial flux profile measurement in compact subcritical system using miniature neutron detectors
ترجمه فارسی عنوان
اندازه گیری پروفایل شات فضایی نوترون در سیستم زیرکریسی جمع و جور با استفاده از آشکارسازهای مینیاتوری نوترون
کلمات کلیدی
سیستم فوق بحرانی راننده شتاب دهنده، اندازه گیری جریان شار نوترون، آشکارساز نوترون مینیاتوری،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
چکیده انگلیسی
A zero power multiplying assembly in subcritical regime serves as a benchmark for validating subcritical reactor physics. The utilization of a subcritical assembly for the determination of nuclear parameters in a multiplying medium requires a well-defined neutron flux to carry out the experiments. For this it is necessary to know the neutron flux profile inside a subcritical system. A compact subcritical assembly BRAHMMA has been developed in India. The experimental channels in this assembly are typically less than 8 mm diameter. This requires use of miniature detectors that can be mounted in these experimental channels. In this article we present the thermal neutron flux profile measurement in a compact subcritical system using indigenously developed miniature gas filled neutron detectors. These detectors were specially designed and fabricated considering the restrictive dimensional requirements of the subcritical core. Detectors of non-standard size with various sensitivities, from 0.4 to 0.001 cps/nv were used for neutron flux of interest ranging from 103 to 107 n-cm−2 s−1. A comparison of measured neutron flux using these detectors and simulated Monte Carlo calculations are also presented in this article.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 772, 1 February 2015, Pages 118-123
نویسندگان
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