Measurement of EUV spectra from high Z elements in the Large Helical Device

Files in This Item:
File Description SizeFormat 
PR3_csuzuki.pdf685.55 kBAdobe PDFDownload
Title: Measurement of EUV spectra from high Z elements in the Large Helical Device
Authors: Suzuki, C.
Kato, T.
Sakaue, H.A.
Kato, D.
Murakami, I.
Sato, K.
Tamura, N.
Sudo, S.
Yamamoto, N.
Tanuma, H.
Ohashi, H.
D'Arcy, Rebekah
Harte, Colm S.
O'Sullivan, Gerry
Permanent link: http://hdl.handle.net/10197/3708
Date: 21-Sep-2010
Abstract: Extreme ultra-violet (EUV) emission spectra from highly charged tin, xenon and tungsten ions have been measured in optically thin high-temperature plasmas produced in the Large Helical Device (LHD) at the National Institute for Fusion Science by using a grazing incidence spectrometer and a tracer-encapsulated solid pellet (TESPEL) injector. Quasi-continuous spectral features arising from unresolved transition array (UTA) of open 4d subshell ions were commonly observed for tin, xenon and tungsten around 13.5, 11, and 5 nm, respectively, when edge plasma was cooled enough. The spectral appearance obviously depends on edge electron temperature and atomic number. In the case of intermediate edge temperature, sharp discrete lines from highly charged open 4s or 4p subshell ions are clearly observed for tin and xenon in longer wavelength side of the UTAs but not for tungsten. Assignments of the strong discrete lines have been performed with the help of comparisons with the other experimental data and the theoretical calculations by Cowan code. Contribution of open 4f subshell ions should also be considered to interpret the whole spectra from tungsten ions.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: American Institute of Physics
Copyright (published version): 2011 American Institute of Physics
Keywords: LHDHigh Z elementsEUV spectraHighly charged ionsTinXenonTungsten
Subject LCSH: Ultraviolet spectra
Spectrum analysis
Tin
Xenon
Tungsten
DOI: 10.1063/1.3585803
Language: en
Status of Item: Peer reviewed
Is part of: A. Bernotas, R. Karazija, Z. Rudzikas (eds.). AIP Conference Proceedings : Volume 1344 : 7th International Conference On Atomic and Molecular Data and Their Applications - ICAMDATA-2010
Conference Details: 7th International Conference On Atomic and Molecular Data and Their Applications - ICAMDATA-2010, 21–24 September 2010, Vilnius, (Lithuania)
Appears in Collections:Physics Research Collection

Show full item record

SCOPUSTM   
Citations 50

1
Last Week
0
Last month
checked on Aug 9, 2018

Page view(s) 10

183
checked on May 25, 2018

Download(s) 50

90
checked on May 25, 2018

Google ScholarTM

Check

Altmetric


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.