Volume-absorbing calorimeters for high-power laser pulses
- 1 July 1974
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 45 (7) , 936-943
- https://doi.org/10.1063/1.1686772
Abstract
Two types of calorimeters developed to measure energy in high‐power laser pulses are described: solid‐absorber calorimeters, of designs capable of extension to large diameters, and stirrred‐liquid calorimeters. Results are given for measurements of 1.06 μ pulses at power densities up to about 1011 W cm−2. The calorimeters are calibrated by electrical heating; together with measurements of the specular reflection and thermal radiation losses, this permits performance of absolute measurements to an accuracy of better than 1%.Keywords
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