کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1740266 1521746 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Portable spectroscopic fast neutron probe and 3He detector dead-time measurements
ترجمه فارسی عنوان
تست سریع نوترون طیف سنجی قابل حمل و اندازه گیری وقت تلف شده آشکارساز 3He
کلمات کلیدی
محاسبات وقت تلف شده؛ قانون میرایی؛ شبیه سازی MCNP
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Dead-time of Liquid scintillator detector was calculated.
• He detector dead-time estimation was obtained using MCNP code and subcritical assembly.
• Attenuation law, paralyzing and non-paralyzing dead-time models combined.
• Results are consistent with the dead-time values reported for helium detectors.

This paper presents dead-time calculations for the Portable Spectroscopic Fast Neutron Probe (N-Probe) using a combination of the attenuation law, MCNP (Monte Carlo N-particle Code) simulations and the assumption of ideal paralyzing and non-paralyzing dead-time models. The N-Probe contains an NE-213 liquid scintillator detector and a spherical 3He detector. For the fast neutron probe, non-paralyzing dead-time values were higher than paralyzing dead-time values, as expected. Paralyzing dead-time was calculated to be 37.6 μs and non-paralyzing dead-time was calculated to be 43.7 μs for the N-Probe liquid scintillator detector. Dead-time value for Canberra 3He neutron detector (0.5NH1/1K) was also estimated using a combination of subcritical assembly measurements and MCNP simulations. The paralyzing dead-time was estimated to be 14.5 μs, and the non-paralyzing dead-time was estimated to be 16.4 μs for 3He gas filled detector. These results are consistent with the dead-time values reported for helium detectors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 92, September 2016, Pages 15–21
نویسندگان
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