Comparison of atomic and molecular densities and temperatures of deuterium and hydrogen plasmas in a magnetic multipole source
作者： D Wagner , B Dikmen , H F Döbele
DOI: 10.1088/0963-0252/7/4/004
关键词:
摘要: Resonance absorption of narrow-bandwidth coherent vacuum UV radiation is applied to hydrogen and deuterium plasmas in a magnetic multipole source determine populations rovibronic levels the electronic molecular ground state as well atomic densities temperatures. Variations are investigated function discharge parameters two different regions plasma source: central region close wall. A strong dependence density on pressure current observed considerable difference between values edge regions. The differences discharges small. - determined only do not exhibit significant for (v = 2 5 v 3 6 ) distributions Boltzmann. Molecular translation temperatures room temperature good agreement with rotational from population first four states six deuterium. fraction cold atoms present exhibits similar temperature.
harvard.edu
sci-hub.se 参考文章(31)
J. R. Hiskes, Cross sections for the vibrational excitation of the H2(X1∑+g) state via electron collisional excitation of the higher singlet states Journal of Applied Physics. ,vol. 51, pp. 4592- 4594 ,(1980) , 10.1063/1.328352
B. P. Lavrov, D. K. Otorbaev, Determination of the gas temperature of a low-pressure plasma from the intensities of the H/sub 2/ and D/sub 2/ molecular bands. 1: Rotational structure of the Fulcher band system Optics and Spectroscopy. ,vol. 45, pp. 859- 862 ,(1978)
A. M. Bruneteau, G. Hollos, M. Bacal, J. Bretagne, Temperature and relative density of atomic hydrogen in a multicusp H− volume source Journal of Applied Physics. ,vol. 67, pp. 7254- 7264 ,(1990) , 10.1063/1.344559
P. J. Eenshuistra, J. H. M. Bonnie, J. Los, H. J. Hopman, Observation of exceptionally high vibrational excitation of hydrogen molecules formed by wall recombination. Physical Review Letters. ,vol. 60, pp. 341- 344 ,(1988) , 10.1103/PHYSREVLETT.60.341
G. C. Stutzin, A. T. Young, A. S. Schlachter, J. W. Stearns, K. N. Leung, W. B. Kunkel, G. T. Worth, R. R. Stevens, Atomic hydrogen density measurements in an ion source plasma using a VUV absorption spectrometer Review of Scientific Instruments. ,vol. 59, pp. 1479- 1481 ,(1988) , 10.1063/1.1139693
Andrew J. T. Holmes, Development of H− and D− ion sources for plasma heating Review of Scientific Instruments. ,vol. 61, pp. 389- 391 ,(1990) , 10.1063/1.1141301
G. C. Stutzin, A. T. Young, H. F. Döbele, A. S. Schlachter, K. N. Leung, W. B. Kunkel, In-situ density and temperature measurements of vibrationally-excited hydrogen molecules in ion source plasmas Review of Scientific Instruments. ,vol. 61, pp. 619- 621 ,(1990) , 10.1063/1.1141936
J. Marx, A. Lebehot, R. Campargue, Cross sections for vibrational excitation of H2(X 1Σ +g, ν" = 0) via electronically excited singlet states populated by low energy electron impact Journal de Physique. ,vol. 46, pp. 1667- 1670 ,(1985) , 10.1051/JPHYS:0198500460100166700
C. Gorse, M. Capitelli, J. Bretagne, M. Bacal, Vibrational excitation and negative-ion production in magnetic multicusp hydrogen discharges Chemical Physics. ,vol. 93, pp. 1- 12 ,(1985) , 10.1016/0301-0104(85)85044-8
D. H. McNeill, J. Kim, Balmer-alpha emission and hydrogen-atom energy in ion-source discharges Physical Review A. ,vol. 25, pp. 2152- 2163 ,(1982) , 10.1103/PHYSREVA.25.2152