Crossed-beam measurements of absolute rate coefficients in associative ionisation collisions between Na*(np) and Na(3s) for 5≤n≤15

作者: J Boulmer , R Bonanno , J Weiner

DOI: 10.1088/0022-3700/16/16/021

关键词: IonizationGround stateBeam (structure)LaserPhysicsAtomic physicsPrincipal quantum numberExcited statePhotoexcitationIonic bonding

摘要: Associative ionisation in slow collisions between Na*(np) levels and the Na(3s) ground state is studied a crossed-beam experiment. Excited are prepared by laser photoexcitation, ionic species analysed time-of-flight mass separation. Rate coefficients for associative ionisation, measured principal quantum numbers ranging from n=5 to 15, exhibit pronounced on n with maximum of approximately 3*10-9 cm3 s-1 near n=11. Comparisons made theoretical model developed Duman Shmatov, Mihajlov Janev.

参考文章(21)
F Roussel, P Breger, G Spiess, C Manus, S Geltman, Evidence of super-elastic effects in laser-induced ionisation of Na vapour Journal of Physics B. ,vol. 13, ,(1980) , 10.1088/0022-3700/13/21/002
M Cheret, L Barbier, W Lindinger, R Deloche, Penning and associative ionisation of highly excited rubidium atoms Journal of Physics B. ,vol. 15, pp. 3463- 3477 ,(1982) , 10.1088/0022-3700/15/19/015
F. Gounand, P. R. Fournier, J. Berlande, Collisional depopulation of RydbergPstates of rubidium at thermal energies Physical Review A. ,vol. 15, pp. 2212- 2220 ,(1977) , 10.1103/PHYSREVA.15.2212
Regina Bonanno, Jacques Boulmer, John Weiner, Determination of the absolute rate constant for associative ionization in crossed-beam collisions between Na3P322atoms Physical Review A. ,vol. 28, pp. 604- 608 ,(1983) , 10.1103/PHYSREVA.28.604
Jacques Boulmer, John Weiner, Production of Na 2 + by crossed-beam collisions in the presence of intense, nonresonant radiation Physical Review A. ,vol. 27, pp. 2817- 2825 ,(1983) , 10.1103/PHYSREVA.27.2817
Evgenii E Nikitin, Boris M Smirnov, Quasiresonant processes in slow collisions Physics-Uspekhi. ,vol. 21, pp. 95- 116 ,(1978) , 10.1070/PU1978V021N02ABEH005518
V. S. Kushawaha, J. J. Leventhal, Associative ionization in laser-excited sodium vapor Physical Review A. ,vol. 25, pp. 346- 350 ,(1982) , 10.1103/PHYSREVA.25.346