Observation of multiple Bragg reflections of neutrons in bent perfect crystals

0367432 - ÚJF 2012 RIV NL eng J - Článek v odborném periodiku
Mikula, Pavol - Vrána, Miroslav - Šaroun, Jan - Seong, B. S. - Moon, MK.
Observation of multiple Bragg reflections of neutrons in bent perfect crystals.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 634, č. 1 (2011), S108-S111. ISSN 0168-9002. E-ISSN 1872-9576.
[International Workshop on Neutron Optics. Grenoble, 17.03.2010-19.03.2010]
Grant CEP: GA ČR GAP204/10/0654
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: Neutron diffraction * Bent perfect crystal * Multiple reflections
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.207, rok: 2011

Multiple reflection effects resulting in Umweganregung or Aufhellung have been studied in elastically bent perfect silicon single-crystals which are often used for focusing monochromators or analyzers. It has been proved that under certain conditions strong multiple reflections with intensities comparable or even higher than those corresponding to single diffraction process can be excited in the deformed single crystals. This effect is documented on diffraction by cylindrically bent perfect silicon crystals. (C) 2010 Elsevier B.V. All rights reserved.
Trvalý link: http://hdl.handle.net/11104/0202128