Figure 3
Cryostat used for cooling a silicon (12 12 12) channel-cut crystal to 123 K; high-resolution rotation stage (A), aluminium base plate (B), copper cryobox (C), beryllium windows (D), spring-loaded clamp (E), silicon crystal (F), thermal insulating shim (G), cooling channels (H), cooling-gas temperature sensors (I), glass-epoxy support post (J). Outer vacuum shroud and electrical feedthroughs are not shown. |