کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8170335 1526305 2016 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimizing constant wavelength neutron powder diffractometers
ترجمه فارسی عنوان
بهینه سازی داکتهای ثابت پودر نوترون طول موج
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
چکیده انگلیسی
This article describes an analytic method to optimize constant wavelength neutron powder diffractometers. It recasts the accepted mathematical description of resolution and intensity in terms of new variables and includes terms for vertical divergence, wavelength and some sample scattering effects. An undetermined multiplier method is applied to the revised equations to minimize the RMS value of resolution width at constant intensity and fixed wavelength. A new understanding of primary spectrometer transmission (presented elsewhere) can then be applied to choose beam elements to deliver an optimum instrument. Numerical methods can then be applied to choose the best wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 821, 11 June 2016, Pages 122-135
نویسندگان
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