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Updated: Jul 2, 2026

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Broadband stable detector for ultraviolet (300-1700 A) plasma spectroscopy
1Department of Physics, The Johns Hopkins University, Baltimore, Maryland 21218.
Abstract:
A CuI coating on the first dynode of a windowless photomultipler creates a broadband and stable detector for ultraviolet plasma spectroscopy with a quantum efficiency above 2% from 400 to 1600 A. The stability of this photocathode was tested in the environment of tokamak discharges; no degradation was found after one year's use.
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