Monte Carlo simulations of parasitic and multiple reflections in elastically bent perfect single-crystals

0365870 - ÚJF 2012 RIV NL eng J - Článek v odborném periodiku
Šaroun, Jan - Kulda, J. - Mikula, Pavol - Vrána, Miroslav
Monte Carlo simulations of parasitic and multiple reflections in elastically bent perfect single-crystals.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 634, č. 1 (2011), S50-S54. ISSN 0168-9002. E-ISSN 1872-9576.
[International Workshop on Neutron Optics. Grenoble, 17.03.2010-19.03.2010]
Grant CEP: GA MPO FR-TI1/378
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: NEUTRON-DIFFRACTION
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.207, rok: 2011

A new model including reflections on multiple diffracting planes has been developed and implemented within the neutron Monte Carlo ray-tracing code of the RESTRAX simulation package to describe the diffraction and transmission properties of elastically bent perfect crystals. The new code provides a quantitative prediction of the intensity of parasitic reflections and of the Renninger effect, both of which can significantly modify the intensity of primary reflections and increase the attenuation of a neutron beam traversing a bent perfect crystal.
Trvalý link: http://hdl.handle.net/11104/0201013