防辐射屏
防辐射屏-
8块采用双面敷铜印刷线路板制作，并经过表面处理的防辐射屏，用于减少颈管顶法兰的辐射热。低温恒温器提供了20mm×40mm椭圆形截面的束流通道。
To reduce the radiation heat from the top flange , eight surface treated radiation shields made of copper clad epoxy glass-fiber laminate are installed in the neck of cryostat . The cryostat has a beam channel with 20 mm × 40 mm ovel cross-section .