Journal Article10.1134/1.2121850
Bromine-iodine excimer electric-discharge lamp with continuous UV radiation spectrum
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TL;DR: The optical properties of a small-size UV lamp filled with a working mixture of xenon and krypton with bromine and iodine vapor and pumped by longitudinal electric discharge have been studied in this paper.
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Abstract: The optical characteristics of a small-size UV lamp filled with a working mixture of xenon and krypton with bromine and iodine vapor and pumped by longitudinal electric discharge have been studied. The lamp emits a resonance atomic line of iodine I* at 206.2 nm (with a full width at half maximum of 0.10 nm) and a continuum in the range 220–390 nm, which is formed by the emission bands of diatomic molecules [XeI(B-X), XeBr(B,D-X), Br2(B-X), I2(B-X), and IBr(B-X)]. The optimum partial pressure of iodine vapor is 100–200 Pa, that of bromine vapor ranges from 130 to 400 Pa, and that of heavy inert gases, from 400 to 800 Pa. The average total UV output radiation power was 10–12 W at an efficiency of 10–12%.
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Citations
Radiant characteristics of high power excilamps with binary exciplexes of XeCl and XeBr
Abstract: The characteristics of the coaxial binary excilamps containing two exciplexes of XeCl* and XeBr* were studied based on the dielectric barrier discharge with various annular gap, driven by sinusoidal electronic control gear. The effect of the gas pressure, halogen fraction, and discharge gap were investigated. The optimum total pressure is 150–200 mbar and 200–250 mbar for 308 nm and 282 nm, respectively, leading to about 200 mbar for the total radiant efficiency. The optimized total halogen percentage is in range of 0.2%–0.3%, which is slightly increased, with a higher bromine ratio. Additionally, the radiant efficiency shows weak dependence on the discharge gap.
References
Xe(He)-I 2 glow and capacitive discharge excilamps
Mikhail I. Lomaev,Victor F. Tarasenko +1 more
- 27 Mar 2002
TL;DR: In this paper, XeI 2 and He-I 2 glow and capacitive discharge excilamps have been studied, and they emit at iodine monatomic resonance lines in the range of 180 - 210 nm.
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Emission Characteristics of a Glow Discharge in a Mixture of Heavy Inert Gases with Iodine Vapor
TL;DR: In this paper, the results of a systematic investigation of the emission characteristics of a low-pressure UV excimer-halogen lamp pumped by a longitudinal dc glow discharge are presented The discharge was initiated in mixtures of heavy inert gases with iodine vapor at a total pressure of 100-2000 Pa and a power deposited into the plasma of 10-100 W Currentvoltage characteristics of the glow discharge and emission spectra of the plasma in the region of 190-360 nm were studied.
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