کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845403 | 1526513 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurement of thermal neutron radiative capture cross-sections of the 14N and 19F by in-beam γ-spectroscopy method with reactor neutrons
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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 cross-sections of the 14N(n,γ) 15N and 19F(n,γ) 20F reactions were measured by γ-spectroscopy method with the target placed at the end of a neutron guide of the WWR-M reactor (PNPI, Gatchina). The neutron spectrum was measured by the TOF method. The maximum of the spectrum is located at 0.028(2) eV and FWHM is about 0.03 eV. Cross-section of radiative neutron capture in aluminium and absolute γ-intensities of the 1779 and 1633 keV γ-lines from beta decay of the 28Al and 20F, respectively, and the prompt 1678 and 1885 keV γ-lines from the 14N(n,γ) 15N reaction were taken as standards. The thermal neutron radiative cross-sections of the 14N and 19F were measured to be 0.0795(13) and 0.00950(15)b, respectively. New value of the γ-intensity of the 1678 keV γ-line from the 14N(n,γ) 15N reaction has been proposed.
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 296-300
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 545, Issues 1â2, 11 June 2005, Pages 296-300
نویسندگان
A.I. Egorov, R.I. Krutova, Yu.E. Loginov, S.Eh. Malyutenkova,