Terahertz calorimetry for the Herschel Space Observatory
2004
Terahertz laser calorimetry has been employed to measure the emissivity of samples of the Herschel telescope mirror at T=77 K, and the absorptivity of absorbers meant for the PACS and HIFI instruments at T=10 K. As a spin-off, a simple broadband absolute power meter has been developed.
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