کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9837936 | 1525286 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chopper mode of Drabkin energy filters for pulsed neutron sources
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The Drabkin energy filter could be used as a fast chopper for pulsed neutrons by varying the resonant wavelength λ* fast in such a way that the resonant wavelength matches the neutron wavelength at a small time region. The faster λ* were varied, the smaller time window we could obtain. Neutron pulses could be sharpened much more effectively for a small wavelength band than in the wide-band pulse-shaping mode in which λ* is varied in synchronization with the time-of-flight from the moderator. In our preliminary test of a chopper mode with a prototype Drabkin energy filter, time window of 0.21 ms was obtained while it was 1.08 ms with the filter-driven stationary. Narrower time window could have been obtained if we had more beam time and it could also be narrowed with higher-resolution Drabkin filters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 356, Issues 1â4, 15 February 2005, Pages 174-177
Journal: Physica B: Condensed Matter - Volume 356, Issues 1â4, 15 February 2005, Pages 174-177
نویسندگان
D. Yamazaki, K. Soyama, T. Ebisawa, M. Takeda, R. Maruyama, S. Tasaki,