کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10715789 1027369 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diamond mosaic crystals for neutron instrumentation: First experimental results
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Diamond mosaic crystals for neutron instrumentation: First experimental results
چکیده انگلیسی
Diamond single crystals were recently proposed as monochromators of unprecedented performance [1] (Freund, 2009). In the present paper we describe how diamond crystals with a suitable mosaic spread can be produced using a specific plasma CVD technique. Up to 2 mm thick samples with an average mosaic spread of 0.2° have been produced. We report on X- and gamma-ray characterisation checking the uniformity of the mosaic structure and present the results of a first study regarding the neutron reflection properties of this outstanding material. These promising results show that the diamond diffraction properties are not too far from the theoretical expectations. For example, 34% peak reflectivity has been obtained for a 1 mm thick crystal at 1 Å wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 634, Issue 1, Supplement, 1 April 2011, Pages S28-S36
نویسندگان
, , , , , , , ,