Thermo-mechanical failure criteria for x-ray windows and filters and comparison with experiments

Zhibi Wang; Tuncer M. Kuzay

doi:10.1117/12.163825

12 November 1993 Thermo-mechanical failure criteria for x-ray windows and filters and comparison with experiments

Zhibi Wang, Tuncer M. Kuzay

Proceedings Volume 1997, High Heat Flux Engineering II; (1993) https://doi.org/10.1117/12.163825
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

Synchrotron x-ray windows are vacuum separators and are usually made of thin beryllium metal. Filters are provided upstream of the window to filter out the soft x-rays to protect the window from overheating and failing. The filters are made of thin carbon products or sometimes beryllium, the same material as the window. Because the window is a vacuum separator, understanding its potential structural failure under thermal load is very important. Current structural failure models for the brazed windows and filters under thermal stresses are not very accurate. Existing models have been carefully examined and found to be inconsistent with the actual failure modes of windows tested. Due to the thinness of the filter/window, the most likely failure mode is thermal buckling. In fact, recent synchrotron tests conducted in Japan on window failures bear out this position. In this paper, failure criteria for filters/windows are proposed, and analyses are performed and compared with the experimental results from various sources. A consistent result is found between the analysis and reported experiments.

Citation Download Citation

Zhibi Wang and Tuncer M. Kuzay "Thermo-mechanical failure criteria for x-ray windows and filters and comparison with experiments", Proc. SPIE 1997, High Heat Flux Engineering II, (12 November 1993); https://doi.org/10.1117/12.163825

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available