INTERATOMIC POTENTIAL AND TRANSPORT-PROPERTIES OF NA+ IONS IN HE

被引:12
作者
ONG, PP
TAN, TL
LAM, KY
机构
[1] Physics Department, National University of Singapore, Kent Ridge
关键词
D O I
10.1088/0953-4075/26/16/019
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Hitherto unavailable experimental values of the ratio, D(T)/K, of the transverse diffusion coefficient to mobility for Na+ ions drifting in helium gas are reported. Results were obtained with estimated accuracies of better than 3% at temperatures between 302 and 304 K, and at electric field to neutral gas density ratios, E/N, ranging from 5 to 400 Td. By an independent approach, the three transport parameters are also computed by Monte Carlo simulation using the modified Tang-Toennies potential and the Koutselos, Mason and Viehland potential as input, separately. Comparison between the simulated results and available experimental data suggests that the latter potential represents fairly well the true interaction in the long and intermediate ranges, but its short-range repulsive region is too soft.
引用
收藏
页码:2649 / 2658
页数:10
相关论文
共 14 条
  • [1] INTERACTION POTENTIALS FOR ALKALI ION-RARE GAS AND HALOGEN ION-RARE GAS SYSTEMS
    AHLRICHS, R
    BOHM, HJ
    BRODE, S
    TANG, KT
    TOENNIES, JP
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1988, 88 (10) : 6290 - 6302
  • [2] MOBILITIES OF LI+ IONS IN HE, NE, AND AR AND OF NA+ IONS IN HE, NE, AR, AND CO2
    AKRIDGE, GR
    ELLIS, HW
    PAI, RY
    MCDANIEL, EW
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1975, 62 (11) : 4578 - 4579
  • [3] MEASUREMENTS OF DT/MU OF NA+ IONS IN ARGON AND NEON
    HOGAN, MJ
    ONG, PP
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1990, 23 (08) : 1050 - 1057
  • [4] CHARACTERISTICS OF ALUMINOSILICATES AS THERMIONIC SOURCES OF NA+ AND K+ IONS
    HOGAN, MJ
    ONG, PP
    ANG, JL
    CHEANG, KK
    [J]. INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1992, 116 (03): : 249 - 256
  • [5] INTERACTION UNIVERSALITY AND SCALING LAWS FOR INTERACTION POTENTIALS BETWEEN CLOSED-SHELL ATOMS AND IONS
    KOUTSELOS, AD
    MASON, EA
    VIEHLAND, LA
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1990, 93 (10) : 7125 - 7136
  • [6] MASON EA, 1988, TRANSPORT PROPERTIES, pCH7
  • [7] INTERACTION POTENTIAL, TRANSPORT-PROPERTIES, AND VELOCITY DISTRIBUTIONS OF NA+ IONS IN NE
    ONG, PP
    HOGAN, MJ
    LAM, KY
    VIEHLAND, LA
    [J]. PHYSICAL REVIEW A, 1992, 45 (06): : 3997 - 4009
  • [8] TRANSVERSE DIFFUSION AND INTERACTION POTENTIAL FOR K+ DRIFTING IN AR
    ONG, PP
    HOGAN, MJ
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1991, 24 (03) : 633 - 645
  • [9] AN APPARATUS FOR MEASURING DT/K WITHOUT IN-VACUUM MECHANICAL MOTION
    ONG, PP
    HOGAN, MJ
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (04) : 1047 - 1053
  • [10] LONGITUDINAL DIFFUSION-COEFFICIENTS OF LI+ AND NA+ IONS IN HE, NE, AND AR - EXPERIMENTAL TEST OF GENERALIZED EINSTEIN RELATION
    PAI, RY
    ELLIS, HW
    AKRIDGE, GR
    MCDANIEL, EW
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1975, 63 (07) : 2916 - 2918