Recombination measurements at low energies with Au-49+,Au-50+,Au-51+ at the TSR

被引：38
|
作者：
Uwira, O
Muller, A
Linkemann, J
Bartsch, T
Brandau, C
Schmitt, M
Wolf, A
Schwalm, D
Schuch, R
Zong, W
Lebius, H
Graham, WG
Doerfert, J
Savin, DW
机构：
[1] UNIV GIESSEN,INST KERNPHYS,D-35392 GIESSEN,GERMANY
[2] UNIV HEIDELBERG,INST PHYS,D-69120 HEIDELBERG,GERMANY
[3] STOCKHOLM UNIV,DEPT ATOM PHYS,S-10405 STOCKHOLM,SWEDEN
[4] QUEENS UNIV BELFAST,DEPT PURE & APPL PHYS,BELFAST BT7 1NN,ANTRIM,NORTH IRELAND
[5] RUHR UNIV BOCHUM,INST EXPT PHYS 3,D-44780 BOCHUM,GERMANY
[6] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720
来源：
HYPERFINE INTERACTIONS | 1997年 / 108卷 / 1-3期
关键词：
Recombination Rate; Radiative Recombination; Dielectronic Recombination; High Recombination Rate; Double Logarithmic Scale;
D O I：
10.1023/A:1012694209176
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Recombination of Au49+, Au50+, and Au51+ ions has been studied at the TSR. With Au50+ ions a storage lifetime of only 2 to 4 s was observed with the magnetically expanded electron beam of the cooler at a density of n(e) = 10(7) cm(-3). This short storage time is a consequence of the highest recombination rate coefficient ever observed with an atomic ion (1.8.10(-6) cm(3) s(-1) at zero relative energy E-rel = 0 between electrons and ions). At about 30 meV a huge dielectronic recombination resonance is found with a record small width of only about 15 meV. Such resonances fortuitously occurring near E-rel = 0 are probably the main reason for the enhanced recombination rates observed with Au50+, with Pb53+ (in a recent experiment at LEAR) as well as with other complex ions. For Au49+ and Au51+ the recombination rates are smaller by an order of magnitude.
引用
收藏
页码：149 / 154
页数：6
相关论文
共 50 条
  • [1] Recombination measurements at low energies with Au49+,50+,51+ at the TSR
    O. Uwira
    A. Müller
    J. Linkemann
    T. Bartsch
    C. Brandau
    M. Schmitt
    A. Wolf
    D. Schwalm
    R. Schuch
    W. Zong
    H. Lebius
    W.G. Graham
    J. Doerfert
    D.W. Savin
    Hyperfine Interactions, 1997, 108 : 149 - 154
  • [2] Recombination measurements at low energies with Au49+,50+,51+ at the TSR
    Uwira, O.
    Müller, A.
    Linkemann, J.
    Bartsch, T.
    Brandau, C.
    Schmitt, M.
    Wolf, A.
    Schwalm, D.
    Schuch, R.
    Zong, W.
    Lebius, H.
    Graham, W.G.
    Doerfert, J.
    Savin, D.W.
    Hyperfine Interactions, 1997, 108 (1-3): : 149 - 154
  • [3] Recombination of Au25+ with free electrons at low energies
    Hoffknecht, A.
    Uwira, O.
    Frank, A.
    Schennach, S.
    Spies, W.
    Wagner, M.
    Schippers, S.
    Müller, A.
    Becker, R.
    Kleinod, M.
    Angert, N.
    Mokler, P.H.
    Hyperfine Interactions, 1998, 114 (1-4): : 257 - 261
  • [4] Recombination of Au25+ with free electrons at low energies
    Hoffknecht, A
    Uwira, O
    Frank, A
    Schennach, S
    Spies, W
    Wagner, M
    Schipper, S
    Muller, A
    Becker, R
    Kleinod, M
    Angert, N
    Mokler, PH
    HYPERFINE INTERACTIONS, 1998, 114 (1-4): : 257 - 261
  • [5] Recombination of Au25+ with free electrons at low energies
    A. Hoffknecht
    O. Uwira
    A. Frank
    S. Schennach
    W. Spies
    M. Wagner
    S. Schippers
    A. Müller
    R. Becker
    M. Kleinod
    N. Angert
    P.H. Mokler
    Hyperfine Interactions, 1998, 114 : 257 - 261
  • [6] Recombination of Au25+ with free electrons at very low energies
    Hoffknecht, A
    Uwira, O
    Schennach, S
    Frank, A
    Haselbauer, J
    Spies, W
    Angert, N
    Mokler, PH
    Becker, R
    Kleinod, M
    Schippers, S
    Muller, A
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (10) : 2415 - 2428
  • [7] Recombination of Au20+ at low electron-ion collision energies
    Schippers, S.
    Bernhardt, D.
    Grieser, M.
    Hahn, M.
    Krantz, C.
    Lestinsky, M.
    Novotny, O.
    Repnow, R.
    Savin, D. W.
    Wolf, A.
    Mueller, A.
    PHYSICA SCRIPTA, 2011, T144
  • [8] Casimir force measurements in Au-Au and Au-Si cavities at low temperature
    Laurent, J.
    Sellier, H.
    Mosset, A.
    Huant, S.
    Chevrier, J.
    PHYSICAL REVIEW B, 2012, 85 (03)
  • [9] Applicability of a Au(50 at%) Ti(50 at%)-alloy for diffusion measurements in the Au-Ti system
    Katrin Richter
    Katrin Keiter
    Dietrich Bergner
    Angelika Müller
    Christoph J. Raub
    Dieter Ott
    Microchimica Acta, 1997, 125 : 115 - 120
  • [10] Applicability of a Au(50 at%) Ti(50 at%)-alloy for diffusion measurements in the Au-Ti system
    Richter, K
    Keiter, K
    Bergner, D
    Muller, A
    Raub, CJ
    Ott, D
    MIKROCHIMICA ACTA, 1997, 125 (1-4) : 115 - 120
12345