کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845408 | 1526513 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental measurements of neutron fluxes produced by proton beams (23-80Â MeV) on Be and Pb targets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The “manganese bath” technique has been perfected to measure the total number of neutrons emitted when 23-80Â MeV proton beams bombard a beryllium target. It consists in surrounding the neutron source with a large metallic cylinder filled with a manganese sulphate (MnSO4) solution. The neutrons are slowed down by water and partly captured by manganese (production of 56Mn; T1/2=2.6h). The absolute calibration has been performed with a Ra-Be neutron source. Corrections have been applied for escaping neutrons in both cases. Our experimental results show that the total number of neutrons produced (S0) by the p+Be reaction, per second and per microampere of beam, can be approximated (for proton energy Ep between 23 and 80Â MeV) by: S0=5.58Ã108 (Ep[MeV])1.69. Some measurements have also been done with a lead target.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 545, Issues 1â2, 11 June 2005, Pages 339-343
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 545, Issues 1â2, 11 June 2005, Pages 339-343
نویسندگان
I. Tilquin, P. Froment, M. Cogneau, Th. Delbar, J. Vervier, G. Ryckewaert,