Abstract
A gas-discharge excimer radiation source in the visible spectral region has been developed on the basis of a mixture of cadmium diiodide vapors and helium excited by a repetitively pulsed barrier discharge. The source radiation spectrum consists mainly of superimposed spectral bands of emission of cadmium iodide in the range 470–700 nm. The mean radiation power from the source surface (114.5 cm2) is 55 W, the pulse power is 105 kW, and the efficiency is ∼10%. Approximately 90% of the radiation power is concentrated in the red region, which is much higher than in high-pressure sodium lamps at comparable energies deposited into the working mixtures. Such sources can be used to efficiently control photosynthesis and the growth and development of plants and algae.
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