Source of VUV Emission Based on Beam-Heated Plasma of GOL-3-II Facility

V.T. Astrelin; A.V. Arzhannikov; E.V. Bobukh; A.V. Burdakov; I.A. Ivanov; V.S. Koidan; K.I. Mekler; P.I. Melnikov; S.V. Polosatkin; V.V. Postupaev; A.F. Rovenskikh; S.L. Sinitskiy; A.Yu. Zabolotsky; N.G. Karlykhanov; V.A. Lykov; V.G. Nikolaev

doi:dx.doi.org/10.13182/FST99-A11963890

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Source of VUV Emission Based on Beam-Heated Plasma of GOL-3-II Facility

V.T. Astrelin, A.V. Arzhannikov, E.V. Bobukh, A.V. Burdakov, I.A. Ivanov, V.S. Koidan, K.I. Mekler, P.I. Melnikov, S.V. Polosatkin, V.V. Postupaev, A.F. Rovenskikh, S.L. Sinitskiy, A.Yu. Zabolotsky, N.G. Karlykhanov, V.A. Lykov, V.G. Nikolaev

Fusion Science and Technology / Volume 35 / Number 1T / January 1999 / Pages 384-388

Poster Presentations / dx.doi.org/10.13182/FST99-A11963890

Published:February 8, 2018

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New approach to a vacuum ultraviolet (VUV) source based on mirror-confined plasma is presented. A plasma cloud with n_e=10¹⁶−10¹⁷ cm⁻³ and T_e=10–50 eV serves as an active medium. Such plasma can be obtained in GOL-3 facility by means of two-stage heating by relativistic electron beam. Current experiments on GOL-3-II facility are described. Results of recent study of VUV flush from hydrogen and nitrogen plasma with calculations of ionisation balance and radiation power are presented. Transitions in Li-like ions for recombination scheme and in Ne-like ions for collision excitation scheme are considered as a candidates for coherent VUV generation. Prospects of population inversion and gain achievement are discussed.