Experiment on direct irradiation of a beryllium window by undulator radiation

Seiji Asaoka, Hideki Maezawa, Yukihide Kamiya, Mihiro Yanagihara

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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 languageEnglish
Pages (from-to)473-476
Number of pages4
JournalReview of Scientific Instruments
Issue number1
Publication statusPublished - 1992 Dec 1

ASJC Scopus subject areas

  • Instrumentation


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