Observations of x-ray spectra from highly charged tungsten ions in tokamak plasmas

被引：67
|
作者：
Neu, R
Fournier, KB
Schlogl, D
Rice, J
机构：
[1] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550
[2] MIT,PLASMA SCI & FUS CTR,CAMBRIDGE,MA 02139
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1997年 / 30卷 / 21期
关键词：
D O I：
10.1088/0953-4075/30/21/036
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
X-ray spectra in the range 7-10 Angstrom from highly charged tungsten (Z = 74) ions were observed in the tokamak ASDEX Upgrade. Lines emitted from W37+ to W47+ were identified by comparison with ab initio calculations and with the expected ionization equilibrium charge-state distribution. Most of the features in the observed spectra coincide with predicted lines. A spectral line of As I-like W41+ could be identified as the predominant one for plasmas with 2.5-3 keV central electron temperature. The calculations predict clearly separated spectral lines for Kr I-like W at about 18.4 Angstrom and strong lines between 5.6 and 6.0 Angstrom for all charge states under consideration that can be used for monitoring W densities in the soft x-ray region. Tungsten concentrations in the range of 10(-4) were extracted from the emissivities of spectral lines from W40+ and W41+.
引用
收藏
页码：5057 / 5067
页数：11
相关论文
共 50 条
  • [41] X-ray absorption spectra of plasmas
    Peng, YL
    Han, XY
    Li, JM
    Ding, YN
    Yang, JM
    Zheng, ZJ
    SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 2002, 45 (02): : 246 - 254
  • [42] X-ray spectroscopy of highly-charged heavy ions at FAIR
    Gumberidze, A.
    Stoehlker, Th.
    Beyer, H. F.
    Bosch, F.
    Braeuning-Demian, A.
    Hagmann, S.
    Kozhuharov, C.
    Kuehl, Th.
    Mann, R.
    Indelicato, P.
    Quint, W.
    Schuch, R.
    Warczak, A.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2009, 267 (02): : 248 - 250
  • [43] Microcalorimeters for X-Ray Spectroscopy of Highly Charged Ions at Storage Rings
    Kraft-Bermuth, Saskia
    Hengstler, Daniel
    Egelhof, Peter
    Enss, Christian
    Fleischmann, Andreas
    Keller, Michael
    Stoehlker, Thomas
    ATOMS, 2018, 6 (04):
  • [44] EUV spectroscopy of highly charged tungsten ions relevant to hot plasmas
    Biedermann, C
    Radtke, R
    Schwob, JL
    Mandelbaum, P
    Doron, R
    Fuchs, T
    Fussmann, G
    PHYSICA SCRIPTA, 2001, T92 : 85 - 88
  • [45] X-ray spectroscopy of highly charged Ne-like ions
    Nakamura, N
    Kato, D
    Nojikawa, E
    Currell, FJ
    Faenov, AY
    Pikuz, TA
    Ohtani, S
    PHYSICA SCRIPTA, 1999, T80B : 443 - 445
  • [46] X-ray emission in interaction of highly charged xenon ions with Be foil
    Jablonski, L.
    Banas, D.
    Braziewicz, J.
    Czub, J.
    Jagodzinski, P.
    Kubala-Kukus, A.
    Sobota, D.
    Stabrawa, I.
    Pajek, M.
    XXIII INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES, 2017, 810
  • [47] On the x-ray spectra of tungsten.
    Duane, W
    Patterson, RA
    PHYSICAL REVIEW, 1920, 16 (06): : 526 - 539
  • [48] X-ray observations of medium Z H- and He-like ions with satellites from C-Mod tokamak plasmas
    Rice, J. E.
    Reinke, M. L.
    Ashbourn, J. M. A.
    Gao, C.
    Bitter, M.
    Delgado-Aparicio, L.
    Hill, K.
    Howard, N. T.
    Hughes, J. W.
    Safronova, U. I.
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2015, 48 (14)
  • [49] Angular Distribution and Linear Polarization of X-ray Radiation Resulting from Electron Impact Excitation of Highly Charged Ions in Debye Plasmas
    Chen, Zhanbin
    FEW-BODY SYSTEMS, 2018, 59 (03)
  • [50] Angular Distribution and Linear Polarization of X-ray Radiation Resulting from Electron Impact Excitation of Highly Charged Ions in Debye Plasmas
    Zhanbin Chen
    Few-Body Systems, 2018, 59
12345