Variable Temperature Cells - Terahertz Transmission

Variable temperature (heated) Sample Holder

The Variable Temperature Cell is suitable for transmission measurements on liquid or solid samples. Temperatures can be set between ambient and 250°C. The accessory comprises of an electrically heated cell jacket, electronic controller, THz transparent cell inserts and a modified sample compartment cover for the TPS spectra 3000 to maintain sample compartment purge.

Variable Temperature (cooled) Sample Holder

The cell consists of a vacuum jacket with a refrigerant dewar/cell holder assembly and Z-cut quartz windows. Sample cells are inserted into the heating block part of the dewar/cell holder and the whole system is operated within a vacuum environment maintained by the outer jacket. Using a combination of refrigerant and cell block heaters any temperature from -190°C to 250°C can be achieved. Typically liquid nitrogen is used as the coolant