| 摘要 |
<p>A method for the vacuumtight sealing of a thin (between 25 νm and 150 νm) beryllium X-ray window (14) to a metal substrate (42). The seal is realised by pressing an annular preform (46) of pure (99.99 %) aluminium of round cross section between the substrate (42) and the beryllium X-ray window (14) for a period of 20 s at a pressure of the order of magnitude of 50 N/mm2, measured across the surface of the flattened aluminium, at a temperature of 500 °C.</p> |
