Laboratory measurements of high-n iron L-shell X-ray lines

被引:25
作者
Chen, H. [1 ]
Gu, M. F.
Behar, E.
Brown, G. V.
Kahn, S. M.
Beiersdorfer, P.
机构
[1] Lawrence Livermore Natl Lab, High Temp & Astrophys Div, Livermore, CA 94550 USA
[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[3] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
关键词
atomic data; line : identification; Sun; X-rays; gamma rays; X-rays : general;
D O I
10.1086/510124
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a comprehensive wavelength survey of Fe L-shell X-ray lines between 7 and 11 angstrom measured using flat crystal spectrometers and the EBIT-I and EBIT-II electron beam ion traps at the Lawrence Livermore National Laboratory. This survey includes all significant emission lines produced by over 200 n --> 2 transitions in Fe XVIII-XXIV, with n = 4-10. The identification and assignment of transitions are made with the help of detailed theoretical modeling using the Flexible Atomic Code (FAC).
引用
收藏
页码:319 / 336
页数:18
相关论文
共 22 条
[1]   HULLAC, an integrated computer package for atomic processes in plasmas [J].
Bar-Shalom, A ;
Klapisch, M ;
Oreg, J .
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2001, 71 (2-6) :169-188
[2]   LOW-ENERGY X-RAY SPECTROMETER FOR AN ELECTRON-BEAM ION-TRAP [J].
BEIERSDORFER, P ;
WARGELIN, BJ .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1994, 65 (01) :13-17
[3]   Laboratory X-ray astrophysics [J].
Beiersdorfer, P .
ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2003, 41 :343-390
[4]   X-RAY SPECTROSCOPY OF MULTIPLY-CHARGED IONS FROM LASER PLASMAS [J].
BOIKO, VA ;
FAENOV, AY ;
PIKUZ, SA .
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1978, 19 (01) :11-50
[5]   Wide-band, high-resolution soft x-ray spectrometer for the Electron Beam Ion Trap [J].
Brown, GV ;
Beiersdorfer, P ;
Widmann, K .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (01) :280-283
[6]   Laboratory measurements and modeling of the Fe XVII X-ray spectrum [J].
Brown, GV ;
Beiersdorfer, P ;
Liedahl, DA ;
Widmann, K ;
Kahn, SM .
ASTROPHYSICAL JOURNAL, 1998, 502 (02) :1015-1026
[7]   Laboratory measurements and identification of the Fe XVIII-XXIV L-shell X-ray line emission [J].
Brown, GV ;
Beiersdorfer, P ;
Liedahl, DA ;
Widmann, K ;
Kahn, SM ;
Clothiaux, EJ .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2002, 140 (02) :589-607
[8]   MINIATURE HIGH-CURRENT METAL-ION SOURCE [J].
BROWN, IG ;
GALVIN, JE ;
MACGILL, RA ;
WRIGHT, RT .
APPLIED PHYSICS LETTERS, 1986, 49 (16) :1019-1021
[9]   Electron impact excitation cross section measurement for n=3 to n=2 line emission in Fe17+ to Fe23+ [J].
Chen, H. ;
Gu, M. F. ;
Beiersdorfer, P. ;
Boyce, K. R. ;
Brown, G. V. ;
Kahn, S. M. ;
Kelley, R. L. ;
Kilbourne, C. A. ;
Porter, F. S. ;
Scofield, J. H. .
ASTROPHYSICAL JOURNAL, 2006, 646 (01) :653-665
[10]   Experimental and theoretical evaluation of density-sensitive N VI, Ar XIV, and Fe XXII line ratios [J].
Chen, H ;
Beiersdorfer, P ;
Heeter, LA ;
Liedahl, DA ;
Naranjo-Rivera, KL ;
Träbert, E ;
Gu, MF ;
Lepson, JK .
ASTROPHYSICAL JOURNAL, 2004, 611 (01) :598-604