Figure 2
Design of the photoelectron shield and photograph of the mirror chamber. The schematic illustrations show (a) the shield only, and (b) the mirror and holder inside the shield. The numbers represent the dimension in units of mm. (c) A photograph taken in the direction of the viewport. The copper plate of the shield, the mirror surface and the cooling blocks can be partly seen through the viewport. A flange with its white-coloured insulator is set at the top of the chamber, to introduce the cooling pipes. |