X-ray emission following eow-energy charge exchange collisions of highly charged ions

被引：93

作者：

Beiersdorfer, P ^{[1
]}

Olson, RE

Brown, GV

Chen, H

Harris, CL

Neill, PA

Schweikhard, L

Utter, SB

Widmann, K

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA

[2] Univ Missouri, Dept Phys, Rolla, MO 65401 USA

[3] Univ Nevada, Dept Phys, Reno, NV 89557 USA

[4] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.85.5090

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

K-shell x-ray emission following low-energy charge exchange collisions (less than or equal to 11 eV/amu) has been measured for ten ban and hydrogenic ions up to U91+. The data resolve capture into angular momentum states with l = 1 and provide a stringent test of theory. The assumption of Stark mixing of angular momentum states is inappropriate at such energies. Results from detailed calculations give a better description of the data, but significant discrepancies are noted. The measurements show that the hardness ratio of charge-exchange induced K-shell x-ray emission represents a diagnostic of the dynamics of ion-atom interactions in situations where the energy is below 1 keV/amu, e.g,, in solar wind collisions.

引用

页码：5090 / 5093

页数：4

共 25 条

[1] Measurement of charge exchange between H-2 and low-energy ions with charge states 35<=q<=80 [J].

Beck, BR ;

Steiger, J ;

Weinberg, G ;

Church, DA ;

McDonald, J ;

Schneider, D .

PHYSICAL REVIEW LETTERS, 1996, 77 (09) :1735-1738

[2] Observation of lifetime-limited X-ray linewidths in cold highly charged ions [J].

Beiersdorfer, P ;

Osterheld, AL ;

Decaux, V ;

Widmann, K .

PHYSICAL REVIEW LETTERS, 1996, 77 (27) :5353-5356

[3] FTICR analysis of the magnetic trapping mode of the electron beam ion trap [J].

Beiersdorfer, P ;

Beck, B ;

Becker, S ;

Schweikhard, L .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1996, 157 :149-161

[4] The magnetic trapping mode of an electron beam ion trap: New opportunities for highly charged ion research [J].

Beiersdorfer, P ;

Schweikhard, L ;

LopezUrrutia, JC ;

Widmann, K .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1996, 67 (11) :3818-3826

[5] Effects of neutral particles on edge dynamics in Alcator C-Mod plasmas [J].

Boivin, RL ;

Goetz, JA ;

Hubbard, AE ;

Hughes, JW ;

Hutchinson, IH ;

Irby, JH ;

LaBombard, B ;

Marmar, ES ;

Mossessian, D ;

Pitcher, CS ;

Terry, JL ;

Carreras, BA ;

Owen, LW .

PHYSICS OF PLASMAS, 2000, 7 (05) :1919-1926

[6]

BURGDORFER J, 1986, J PHYS B ATOM MOL PH, V19, pL503

[7] Heliospheric X-ray emission associated with charge transfer of the solar wind with interstellar neutrals [J].

Cravens, TE .

ASTROPHYSICAL JOURNAL, 2000, 532 (02) :L153-L156

[8] X-ray emissions from comets detected in the Rontgen x-ray satellite all-sky survey [J].

Dennerl, K ;

Englhauser, J ;

Trumper, J .

SCIENCE, 1997, 277 (5332) :1625-1630

[9] SELECTIVE SINGLE-ELECTRON CAPTURE INTO (N,L) SUBSHELLS IN SLOW COLLISIONS OF C-6+, N-6+, O-6+ AND NE-6+ WITH HE, H-2 AND AR [J].

DIJKKAMP, D ;

GORDEEV, YS ;

BRAZUK, A ;

DRENTJE, AG ;

DEHEER, FJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1985, 18 (04) :737-756

[10] HE++ TRANSPORT IN THE PDX TOKAMAK [J].

FONCK, RJ ;

HULSE, RA .

PHYSICAL REVIEW LETTERS, 1984, 52 (07) :530-533

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