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3D3DX-Ray tube with window.
This is a complete x-ray tube with a chromium target and three beryllium windows (used because beryllium is largely transparent to x-rays). See a few samples back for an example of one of the windows removed from a similar tube.
Source: eBay seller allthedodaday
Contributor: Theodore Gray
Acquired: 2 November, 2004
Text Updated: 11 March, 2007
Price: $24
Size: 0.5"
Purity: 99%
Sample Group: Medical