Delivery Set

Basic Set
Vacuum Tight Enclosure
2.5 kg Ga cavity, 0.9999999 purity, with Cu insert
Temperature Measurement and Monitoring Platinum Resistance Sensors
Standard Mount for Blackbody

Optional Accessories
Refrigerated Circulator Bath Set
Vacuum Pump Set

The solid angle of a radiation from the cavity is limited by the optical baffle with the aperture diaphragm with a diameter of 8 mm. Ga cell consists of a Teflon cavity, which is inserted into a Teflon case. The Ga cell is hermetically sealed by O-ring, which is fixed by a nut.
The Ga cell is inserted into a closely fitting thick walled copper block, which is used to provide a uniform temperature field.
Copper tube is reeled-up and soldered around the heat exchanger. Vacuum insulation of an internal volume of the radiating cavity from the heat-exchanger internal volume permits to evacuate these volumes independently.

References

1) Sapritsky V.I., Khlevnoy B.B., Khromchenko V.B., Lisiansky B.E., Mekhontsev S.N., Morozova S.P, Shapoval V.I., Samoilov L.N., Zelener M.F., Prokhorov A.V. Precision blackbody sources for radiometry and radiation thermometry – TEMPBEIJING ’97. Proc. of the Int. Conf. on the Temperature and Thermal Measurement. Beijing, China, October 6-10, 1997, pp. 141-146
2) Sapritsky V.I., Khlevnoy B.B., Khromchenko V.B., Lisiansky B.E., Mekhontsev S.N., Morozova S.P., Shapoval V.I., Samoilov L.N., Prokhorov A.V., Zelener M.F. Precision blackbody sources for thermometry and radiometry. – 6 th International Symposium on Temperature and Thermal Measurement in Industry and Science (TEMPMEKO’96). Torino, Italy, 10-12, September, 1996, pp. 321-326