کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1825421 1027361 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neutronics design for the coupled para-hydrogen moderator for CSNS
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Neutronics design for the coupled para-hydrogen moderator for CSNS
چکیده انگلیسی

We performed a neutronics design for the coupled para-hydrogen moderator for the Chinese Spallation Neutron Source (CSNS), which relied on the Monte-Carlo simulation code MCNPX. We chose a cylindrical shape moderator with a diameter of 150 mm after considering the peak and integrated cold neutrons. Under the cost limitations of the CSNS project, the target station may use light water rather than heavy water as a target coolant during phase one. Using light water as the coolant decreased the cold neutron intensity of various energies of the coupled moderator by about 15–20%. If the neutrons were extracted from one side of the moderator instead of being extracted from both sides, the fluxes increased by about 5–10%. The decay power and radiation damages of the moderator vessel were calculated for 100 kW and 5000 h.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 631, Issue 1, 1 March 2011, Pages 105–110
نویسندگان
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