X-ray beam window for vacuum tubes, has ceramic radiation-transmissive plate held in window frame made of metal having expansion rate suited to ceramic

摘要

A radiation-transmissive plate (5) is carried in a wall opening in the vacuum tube by a metal window frame (4). The plate is a ceramic plate, and the window frame is made of a metal having an expansion rate suited to the ceramic. The ceramic plate is made of Al2O3 or SiC. The window frame is made of Vakon 10.