Experiment on direct irradiation of a beryllium window by undulator radiation

Seiji Asaoka; Hideki Maezawa; Yukihide Kamiya; Mihiro Yanagihara

doi:10.1063/1.1142735

Experiment on direct irradiation of a beryllium window by undulator radiation

Seiji Asaoka, Hideki Maezawa, Yukihide Kamiya, Mihiro Yanagihara

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Beryllium windows were tested as the first target in a project for experimental simulations of heat load effects on beamline optical elements under direct irradiation of undulator and wiggler radiation. Maximum temperature at the window center, vertical temperature distribution, and cooling capability by thermal conduction were studied. It turned out that thermomechanical failure occurred when the temperature difference between the window center and its peripheral edges exceeded about 200° C. This fact was in good agreement with a simple maximum-shearing-stress theory of the failure condition.

Original language	English
Pages (from-to)	473-476
Number of pages	4
Journal	Review of Scientific Instruments
Volume	63
Issue number	1
DOIs	https://doi.org/10.1063/1.1142735
Publication status	Published - 1992 Dec 1

ASJC Scopus subject areas

Instrumentation

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AU - Yanagihara, Mihiro

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AB - Beryllium windows were tested as the first target in a project for experimental simulations of heat load effects on beamline optical elements under direct irradiation of undulator and wiggler radiation. Maximum temperature at the window center, vertical temperature distribution, and cooling capability by thermal conduction were studied. It turned out that thermomechanical failure occurred when the temperature difference between the window center and its peripheral edges exceeded about 200° C. This fact was in good agreement with a simple maximum-shearing-stress theory of the failure condition.

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