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Optical characteristics of UV-VUV lamps on the electronic-vibrational transitions of the hydroxyl radical pumped by a nanosecond capacitive discharge

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High Voltage 2017年第2期2卷 78-81页

作者： Alexandr Shuaibov roksolana gritzak Uzhgorod National University Pidhirna vul.4688000 UzhgorodUkraine

This paper presents the results of a study of UV and VUV low-pressure lamp pumped by nanosecond capacitive *** lamp works on the mixtures of helium and argon with water vapor(H_(2)O)or‘heavy’water(D_(2)O).At the capacitive low-pressure lamp emission spectra are mainly narrow band 308 nm OH(A-X)and large band in the VUV spectral range:140-200 nm OH(C,B,A).Found,that the increasing the partial pressure of H_(2)O and D_(2)O(>130-150 Pa)led to a decrease in the intensity of VUV radiation of hydroxyl *** the transition from He/H_(2)O mixture to He/D_(2)O mixture,the optimal pressure of helium is *** partial pressure of argon led to increased intensity of radiation of hydroxyl in the VUV *** study of emission characteristics of OD^(*)-lamps on a mixture of He/D_(2)O and the OH^(*)-lamps on a mixture of He/H_(2)O showed that the intensity of the bands OD(X,C,A)is 1.5 times larger than the intensity of the bands OH(X,C,A).The maximum absolute intensity of UV-VUV radiation of the lamp(at a frequency of 1000 Hz)reached 1 W.

关键词： pumped characteristics bands

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Physical Processes in Barrier Discharge Lamp Working in He/D2O Mixture

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高电压技术 2013年第9期39卷 2193-2200页

作者： Dmitry Levko Alexandr Shuaibov Alexandr Minya roksolana gritzak Zoltan Gomoki Laboratoire Plasma et Conversion d'Energie (LAPLACE) Universite de Toulouse UPS INPT Toulouse 118 route de Narbonne F-31062 Toulouse cedex 9 France Uzhgorod National University Pidhima vul. 46 88000 Uzhgorod Ukraine

This paper presents both results of a numerical modeling and an experimental study of the influence of various parameters on the radiation characteristics of barrier discharge lamp working in He/D2O *** is obtained that the intensity of ultraviolet radiation is a non-monotonic function of both the water and the helium *** experimental results also show that the increase of both the discharge voltage and the discharge pulse frequency leads to the increase of radiation *** comparison between the experimentally obtained data and the results of numerical modeling allows us to define the mechanism controlling the ultraviolet radiation in He/D2O mixture at various parameters.

关键词：放电灯混合物物理过程紫外线辐射势垒数值模拟辐射强度非单调函数

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The Formation of Excited Molecules Chloride Argon, Chlorine and Hydroxyl Radicals in the Nanosecond Barrier Discharge

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Journal of Electrical Engineering 2014年第2期2卷 96-100页

作者： Alexandr Shuaibov Alexandr Minya Zoltan Gomoki roksolana gritzak Geza Laslov Igor Shevera Faculty of Physics Uzhgorod National University Uzhgorod 88000 Ukraine

The results of an experimental study of radiation characteristics of a barrier discharge in a mixture ArCCl4 were presented in this paper. Formation of molecules ArCI（B） and CI2（D＇） in the barrier discharge plasma depends strongly on the partial pressure of freon vapor is shown. The intensity of the radiation band CI2（D＇-A＇） on the value of the pulse repetition rate current at a charging voltage Ua = 13 kV was close to the line that indicates the possibility of increasing the average power of the VUV-UV discharge at frequencies f〉1 kHz.

关键词： Nanosecond barrier discharge argon chloride carbon tetrachloride emission.

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