Multilayer optics for intense synchrotron x‐ray beams: Recent results on their performance

Autor:	H. Kawata, G. Marot, Andreas K. Freund, E. Ziegler, L. E. Berman, St. Joksch, M. Iarocci
Rok vydání:	1992
Předmět:	Physics business.industry Wiggler Synchrotron radiation Particle accelerator Liquid nitrogen Electromagnetic radiation Synchrotron law.invention Optics law Physics::Accelerator Physics business Instrumentation Beam (structure) Power density
Zdroj:	Review of Scientific Instruments. 63:496-500
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1142690
Popis:	Present‐day synchrotron x‐ray beams are very demanding in terms of thermal, mechanical, and radiation stability of any optical element to be inserted in the beam. A set of multilayers was recently exposed and could resist to an x‐ray power density in excess of 7.5 W/mm2, which is comparable to the one expected for the multilayers to be used at ESRF. Such a power density was obtained by setting the multilayers at a grazing angle of about 2° in a focused wiggler beam of 4.6 keV critical energy. The specimen, W/B4C and W/Si multilayers, were cooled either at room temperature or down to liquid nitrogen temperature during an 8–16 h exposure time.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cdd1d850e557a526a07fc43928d0a349 https://doi.org/10.1063/1.1142690 Zobrazit plný text záznamu