| 摘要 |
<p>A radiation detector ( 10 ) has a base ( 30 ), a frame ( 48 ), a window ( 46 ), and solder layers ( 50, 52 ) formed from a solder pre-form ( 58, 60 ) to define a vacuum chamber ( 56 ). Feedthroughs ( 18, 40, 44 ) penetrate the base ( 30 ) for electrical connection to internal components. A method for sealing the detector ( 10 ) aligns a lower detector assembly ( 62 ), the frame ( 48 ) the window ( 46 ), and the solder pre-forms ( 58, 60 ) in a non-sealed relation within a processing chamber ( 80, 94 ). High temperature and low pressure is imposed, and the getter ( 42 ) is activated by resistive heating imposed by current leads ( 88 ). The window ( 46 ), frame ( 48 ), and lower detector assembly ( 62 ) are then pressed together and sealed by the liquefied solder pre-forms ( 58, 60 ). The method eliminates the need for a seal port, combines several steps within the processing chamber ( 80, 94 ), and eliminates certain prior art cleaning steps.</p> |
