کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8166081 | 1526225 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Recent enhancements and performance gains from upgrades to ANSTO's thermal neutron instrument TAIPAN and the triple-axis and Be-filter spectrometers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
TAIPAN has recently undergone some significant upgrades to improve the accessible momentum and energy range of both the TAS and the Be-filter spectrometers. Four key features have been modified to improve performance: the accessible momentum transfer has been increased by re-designing the enclosure and expanding the available instrument range of motion (section A); a new sapphire-filter translation-stage mechanism (Section B) has been installed to allow epithermal neutrons to pass to the two monochromators; a new Cu-200 double-focussing monochromator has been installed to allow monochromatic selection of neutrons up to 180 meV (Section C); and finally a new tertiary shutter and snout (Section D) have been designed to improve the signal-to-noise ratio and reduced background outside the instrument enclosure. Extensive testing and alignment of all new motion stages were undertaken with reproducibility within ±0.05 degrees or ±0.25 mm obtained for both the monochromator rotation angle & sapphire-filter translation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 901, 1 September 2018, Pages 140-149
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 901, 1 September 2018, Pages 140-149
نویسندگان
K.C. Rule, F. Darmann, T. Oste, D. Bartlett, F. Franceschini, A. Berry, A. McGregor, A. Ogrin, T. Ersez, A. Kafes, S. Pangelis, S. Danilkin, A.P.J. Stampfl, S.R Olsen,