| | |   X-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
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