DOI: https://doi.org/10.30970/jps.03.157
INGENEERING AND INVESTIGATION OF CHARACTERISTICS OF A MULTIWAVE EXCIMER LAMP
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Journal of Physical Studies 3(2), 157–163 (1999)
DOI: https://doi.org/10.30970/jps.03.157 INGENEERING AND INVESTIGATION OF CHARACTERISTICS OF A MULTIWAVE EXCIMER LAMP |
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O. K. Shuaibov, L. L. Shimon, I. V. Shevera, A. J. Minja
Uzhhorod State University
46, Pidhirna Str., Uzhhorod, UA-294000, Ukraine
In this paper we present the results of a design and systematic investigations of spectral, temporary and resource characteristics of an electrodischarge excimer lamp, which radiates on $λλ$ 353~nm XeF/308~nm Xеl, 258~nm l$_2$/249~nm KrF/222~nm KrCl or on all the molecules simultaneously. An active media of a lamp was formed with the help of a powerful transverse discharge with a spark preionisation. A multiwave operation mode of an excimer radiator on the krypton, xenon halogens was achieved by means of application of a complex working media: He/Kr/Xe/SF$_6$/HCl and He(Ar)/Xe/Kr/CF$_2$Cl$_2$ under the pressure of 10–100~kPa. Such lamps can be used in a pulse photometry, high energy chemistry, biology and medicine.
It is established, that a multiwave mode of radiation of excimer lamp on He/Kr/Xe/SF$_6$/HCl mixtures, the brightness of radiations bands, is in close proximity in size and is achieved by means of the molecules contents [SF$_6$]=(0.04–0.12)~кPа, [HCl]=(0.1–0.2)~кPа and in concentration ratio of Kr/Xe$\le 10$. By changing the pressure of gas mixtures and contents SF$_6$ and HCl molecules, it is possible to regulate the duration of radiation of the excimer molecules within the limits of 100–400~ns. Using the CF$_2$Cl$_2$ molecules as unique carriers of Cl and F atoms, the multiwave operation mode of an excimer lamp with the brightness ratio radiation Kr and Xe chlorides to fluorides as 9/1 is also realized. The working resource of an excimer lamp exceeded (2-3)$\cdot 10^4$ impulses.