Thermal CalibratiOn of a Low Temperature Invar Sample Cell for FTIR Spectroscopy

L. M. Casson; R. H. Herber

doi:10.1117/12.970924

20 December 1985 Thermal CalibratiOn of a Low Temperature Invar Sample Cell for FTIR Spectroscopy

L. M. Casson, R. H. Herber

Proceedings Volume 0553, Fourier and Computerized Infrared Spectroscopy; (1985) https://doi.org/10.1117/12.970924
Event: 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, 1985, Ottawa, Canada

Abstract

A sample cell, capable of supporting standard 13 mm diameter pressed pellets, and suitable for mounting in a commercial cryostat, has been constructed of Invar, and fitted with two thermocouple sensors for operating in the range 4.2 < T < 300 K. The thermal lag between the temperature of the experimental sample and the sensor reading has been determined by monitoring four phase changes in covalent solids which can be used as "infrared thermometers". In the temperature range 77 < T < 300 K this thermal lag is less than 0.5 degrees.

Citation Download Citation

L. M. Casson and R. H. Herber "Thermal CalibratiOn of a Low Temperature Invar Sample Cell for FTIR Spectroscopy", Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); https://doi.org/10.1117/12.970924

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