Crystal Device
In order to test some low-energy radiation signals, the incident window of radiation is required to use materials with the lowest atomic number possible. Beryllium window is a good choice. Generally, such devices are cylindrical and radiate a beryllium sheet of a certain thickness with an incident window and quartz or glass with an outlet window, depending on the wavelength of the crystal. The length-diameter ratio of the crystals of such devices is generally less than or equal to 1.
| 部件 Parts | 说明 Instruction |
| 晶体材料 Crystal material | LaBr3, CeBr3, NaI |
| 外壳材料 Housing material | Al |
| 光学窗口材料 Optical window material | Quartz |
| 光导材料 Light guide material | Elastic rubber |
| 辐照窗口材料 Irradiation window material | Beryllium plate |
| 密封方式 Hermetic method | Glue |