کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208789 | 1532065 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design of back-streaming white neutron beam line at CSNS
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A white neutron beam line using back-streaming neutrons from the spallation target is under construction at China Spallation Neutron Source (CSNS). Different spectrometers, to be installed in the so-called Back-n beam line for nuclear data measurements, are also being developed in phases. The physical design of the beam line is carried out with the help of a complicated collimation system and a sophisticated neutron dump, taking the overview of the neutron beam characteristics into account. This includes energy spectrum, flux and time structure, the optimizations of neutron beam spots and in-hall background. The wide neutron energy range of 1Â eV-100Â MeV is excellent for supporting different applications, especially nuclear data measurements. At Endstation#2, which is about 80Â m away from the target, the main properties of the beam line include neutron flux of 106Â n/cm2/s, time resolution of a few per mille over nearly the entire energy range, and in-hall background of about 0.01/cm2/s for both neutron and gamma. With its first commission in late 2017, Back-n will not only be the first high-performance white neutron source in China, but also one of the best white neutron sources in the world.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Radiation and Isotopes - Volume 132, February 2018, Pages 212-221
Journal: Applied Radiation and Isotopes - Volume 132, February 2018, Pages 212-221
نویسندگان
L.Y. Zhang, H.T. Jing, J.Y. Tang, Q. Li, X.C. Ruan, J. Ren, C.J. Ning, Y.J. Yu, Z.X. Tan, P.C. Wang, Y.C. He, X.Q. Wang,