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UV Radiation of Low Pressure XeCl* and KrCl* Glow Discharges

✍ Scribed by A. Schwabedissen; W. Bötticher

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
989 KB
Volume
35
Category
Article
ISSN
0005-8025

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✦ Synopsis

The positive column of low pressure DC glow discharges in Xe/CI, and Kr/C1, gas mixtures has been investigated with respect to its UV radiation power and radiative efficiency for a wide range of parameters (total gas pressure: 1 -30 mbar, current 10-30 mA, partial pressure of CI,: 1 -33%). Also the radial distribution of the particle number densities of XeCl* ( B ) and KrCI* (B) has been determined by absolutely calibrated emission spectroscopy. Optimum UV (190-350 nm) output and efficiency has been found in gas mixtures with a relative CI2 partial pressure of 2-3% and total gas pressure of 12-18 mbar. At these parameters, the UV radiation power per column length is greater than 40 Watt/m with a radiative efficiency of 15-18%. These discharges could be used for UV induced photochemical processes.

📜 SIMILAR VOLUMES

Gas Density Distributions and Reduced Fi
Gas Density Distributions and Reduced Field Strenghts of the Positive Column of Low Pressure XeCl* Glow Discharges
✍ K. Tiedtke; A. Schwabedissen; G. Schröder; W. Bötticher 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 774 KB

Interferometric measurements of radial gas density distributions have been performed on the cylindrical positive column of DC low pressure glow discharges (LPGD) in pure Xe and Xe/CI, gas mixtures. Absolute gas temperatures have been measured by thermocouples. In the mixtures, the gas temperature is