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Proceedings Paper

Development of an adiabatic laser calorimeter
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Paper Abstract

An adiabatic laser calorimeter has been developed with a sensitivity of the order of 10-6cm-1 with one watt of laser power using a CO2 laser (9(mu) m to 11(mu) m) in the infrared region. The heat leak by conduction and by radiation from a sample to an inner isothermal enclosure is enough small to be ignored because we succeeded in developing the temperature tracking system between the sample and the enclosure. The total uncertainty of absorption-coefficient measurements is estimated to be 5.4%. The absorption coefficient of a potassium chloride sample #2 was (3.17+/- 0.18)X10-3cm-1.

Paper Details

Date Published: 11 October 2000
PDF: 12 pages
Proc. SPIE 4103, Optical Diagnostic Methods for Inorganic Materials II, (11 October 2000); doi: 10.1117/12.403579
Show Author Affiliations
Etsuo Kawate, National Research Lab. of Metrology (Japan)
Leonard M. Hanssen, National Institute of Standards and Technology (United States)
Simon G. Kaplan, National Institute of Standards and Technology (United States)
Raju V. Datla, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 4103:
Optical Diagnostic Methods for Inorganic Materials II
Leonard M. Hanssen, Editor(s)

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