Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device

Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device

A new beam emission spectroscopy system that has improved lines of sight is installed in the Large Helical Device (LHD), and routine measurement has been started in the 21st LHD experiment campaign in 2019-2020. The new system is optimized for hydrogen isotope experiments by equipping a rotatable la...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Plasma physics and controlled fusion 2020-10, Vol.62 (12), p.125011
Hauptverfasser: Kobayashi, T, Yoshinuma, M, Ida, K
Format: Artikel
Sprache:eng
Schlagworte:
beam emission spectroscopy
density fluctuation
magnetohydrodynamics
stellarator
turbulence
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue 12
container_start_page 125011
container_title Plasma physics and controlled fusion
container_volume 62
creator Kobayashi, T
Yoshinuma, M
Ida, K
description A new beam emission spectroscopy system that has improved lines of sight is installed in the Large Helical Device (LHD), and routine measurement has been started in the 21st LHD experiment campaign in 2019-2020. The new system is optimized for hydrogen isotope experiments by equipping a rotatable large-diameter interference filter to be compatible with either the hydrogen or the deuterium beam emission component. An avalanche photo diode detector array having 8 × 8 pixels is used for obtaining a radial-vertical image of electron density fluctuation covering the mid-radius to the plasma periphery. Spatial resolution and wavenumber cutoff are derived from equilibrium reconstruction and plasma kinetic profiles. Obtained fluctuation data is presented for a low field high beta discharge. The spatiotemporal structure of the fluctuations is clearly shown by Fourier correlation analyses.
doi_str_mv 10.1088/1361-6587/abbf08
format Article
fullrecord <record><control><sourceid>iop_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1088_1361_6587_abbf08</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>ppcfabbf08</sourcerecordid><originalsourceid>FETCH-LOGICAL-c466t-617d60b5913daebbce42d623aeb63f9c15397e067cd5539cff003ccd473f06bb3</originalsourceid><addsrcrecordid>eNp9kMtLAzEQxoMoWB93j7kKrk02u9ntUeqjQsFLPYc8JjWluwnJttL_3ixVTyIMzDfD9w3DD6EbSu4padspZZwWvG6bqVTKkvYETX5Xp2hCmooWjLH6HF2ktCGE0rbkE9StPn1hXAd9cr6XW6xAdhg6l8YZpwB6iD5pHw7Y-og_Dib6NfTYJT_4ALiHtRzcfhS7If4ccD1eyrgGvICt03n7CHun4QqdWblNcP3dL9H789NqviiWby-v84dloSvOh4LTxnCi6hllRoJSGqrS8JJlzZmdaVqzWQOEN9rUWWprCWFam6phlnCl2CUix7s6_54iWBGi62Q8CErEiEuMbMTIRhxx5cjdMeJ8EBu_ixlG-s9--4c9BG0FLwUdq86MRTCWfQG0AXzM</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device</title><source>IOP Publishing Journals</source><source>Institute of Physics (IOP) Journals - HEAL-Link</source><creator>Kobayashi, T ; Yoshinuma, M ; Ida, K</creator><creatorcontrib>Kobayashi, T ; Yoshinuma, M ; Ida, K</creatorcontrib><description>A new beam emission spectroscopy system that has improved lines of sight is installed in the Large Helical Device (LHD), and routine measurement has been started in the 21st LHD experiment campaign in 2019-2020. The new system is optimized for hydrogen isotope experiments by equipping a rotatable large-diameter interference filter to be compatible with either the hydrogen or the deuterium beam emission component. An avalanche photo diode detector array having 8 × 8 pixels is used for obtaining a radial-vertical image of electron density fluctuation covering the mid-radius to the plasma periphery. Spatial resolution and wavenumber cutoff are derived from equilibrium reconstruction and plasma kinetic profiles. Obtained fluctuation data is presented for a low field high beta discharge. The spatiotemporal structure of the fluctuations is clearly shown by Fourier correlation analyses.</description><identifier>ISSN: 0741-3335</identifier><identifier>EISSN: 1361-6587</identifier><identifier>DOI: 10.1088/1361-6587/abbf08</identifier><identifier>CODEN: PLPHBZ</identifier><language>eng</language><publisher>IOP Publishing</publisher><subject>beam emission spectroscopy ; density fluctuation ; magnetohydrodynamics ; stellarator ; turbulence</subject><ispartof>Plasma physics and controlled fusion, 2020-10, Vol.62 (12), p.125011</ispartof><rights>2020 IOP Publishing Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c466t-617d60b5913daebbce42d623aeb63f9c15397e067cd5539cff003ccd473f06bb3</citedby><cites>FETCH-LOGICAL-c466t-617d60b5913daebbce42d623aeb63f9c15397e067cd5539cff003ccd473f06bb3</cites><orcidid>0000-0001-5669-1937 ; 0000-0002-0585-4561</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1361-6587/abbf08/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>314,776,780,27901,27902,53821,53868</link.rule.ids></links><search><creatorcontrib>Kobayashi, T</creatorcontrib><creatorcontrib>Yoshinuma, M</creatorcontrib><creatorcontrib>Ida, K</creatorcontrib><title>Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device</title><title>Plasma physics and controlled fusion</title><addtitle>PPCF</addtitle><addtitle>Plasma Phys. Control. Fusion</addtitle><description>A new beam emission spectroscopy system that has improved lines of sight is installed in the Large Helical Device (LHD), and routine measurement has been started in the 21st LHD experiment campaign in 2019-2020. The new system is optimized for hydrogen isotope experiments by equipping a rotatable large-diameter interference filter to be compatible with either the hydrogen or the deuterium beam emission component. An avalanche photo diode detector array having 8 × 8 pixels is used for obtaining a radial-vertical image of electron density fluctuation covering the mid-radius to the plasma periphery. Spatial resolution and wavenumber cutoff are derived from equilibrium reconstruction and plasma kinetic profiles. Obtained fluctuation data is presented for a low field high beta discharge. The spatiotemporal structure of the fluctuations is clearly shown by Fourier correlation analyses.</description><subject>beam emission spectroscopy</subject><subject>density fluctuation</subject><subject>magnetohydrodynamics</subject><subject>stellarator</subject><subject>turbulence</subject><issn>0741-3335</issn><issn>1361-6587</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kMtLAzEQxoMoWB93j7kKrk02u9ntUeqjQsFLPYc8JjWluwnJttL_3ixVTyIMzDfD9w3DD6EbSu4padspZZwWvG6bqVTKkvYETX5Xp2hCmooWjLH6HF2ktCGE0rbkE9StPn1hXAd9cr6XW6xAdhg6l8YZpwB6iD5pHw7Y-og_Dib6NfTYJT_4ALiHtRzcfhS7If4ccD1eyrgGvICt03n7CHun4QqdWblNcP3dL9H789NqviiWby-v84dloSvOh4LTxnCi6hllRoJSGqrS8JJlzZmdaVqzWQOEN9rUWWprCWFam6phlnCl2CUix7s6_54iWBGi62Q8CErEiEuMbMTIRhxx5cjdMeJ8EBu_ixlG-s9--4c9BG0FLwUdq86MRTCWfQG0AXzM</recordid><startdate>20201028</startdate><enddate>20201028</enddate><creator>Kobayashi, T</creator><creator>Yoshinuma, M</creator><creator>Ida, K</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-5669-1937</orcidid><orcidid>https://orcid.org/0000-0002-0585-4561</orcidid></search><sort><creationdate>20201028</creationdate><title>Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device</title><author>Kobayashi, T ; Yoshinuma, M ; Ida, K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-617d60b5913daebbce42d623aeb63f9c15397e067cd5539cff003ccd473f06bb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>beam emission spectroscopy</topic><topic>density fluctuation</topic><topic>magnetohydrodynamics</topic><topic>stellarator</topic><topic>turbulence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kobayashi, T</creatorcontrib><creatorcontrib>Yoshinuma, M</creatorcontrib><creatorcontrib>Ida, K</creatorcontrib><collection>CrossRef</collection><jtitle>Plasma physics and controlled fusion</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kobayashi, T</au><au>Yoshinuma, M</au><au>Ida, K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device</atitle><jtitle>Plasma physics and controlled fusion</jtitle><stitle>PPCF</stitle><addtitle>Plasma Phys. Control. Fusion</addtitle><date>2020-10-28</date><risdate>2020</risdate><volume>62</volume><issue>12</issue><spage>125011</spage><pages>125011-</pages><issn>0741-3335</issn><eissn>1361-6587</eissn><coden>PLPHBZ</coden><abstract>A new beam emission spectroscopy system that has improved lines of sight is installed in the Large Helical Device (LHD), and routine measurement has been started in the 21st LHD experiment campaign in 2019-2020. The new system is optimized for hydrogen isotope experiments by equipping a rotatable large-diameter interference filter to be compatible with either the hydrogen or the deuterium beam emission component. An avalanche photo diode detector array having 8 × 8 pixels is used for obtaining a radial-vertical image of electron density fluctuation covering the mid-radius to the plasma periphery. Spatial resolution and wavenumber cutoff are derived from equilibrium reconstruction and plasma kinetic profiles. Obtained fluctuation data is presented for a low field high beta discharge. The spatiotemporal structure of the fluctuations is clearly shown by Fourier correlation analyses.</abstract><pub>IOP Publishing</pub><doi>10.1088/1361-6587/abbf08</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0001-5669-1937</orcidid><orcidid>https://orcid.org/0000-0002-0585-4561</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0741-3335
ispartof Plasma physics and controlled fusion, 2020-10, Vol.62 (12), p.125011
issn 0741-3335
1361-6587
language eng
recordid cdi_crossref_primary_10_1088_1361_6587_abbf08
source IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link
subjects beam emission spectroscopy
density fluctuation
magnetohydrodynamics
stellarator
turbulence
title Two-dimensional beam emission spectroscopy for hydrogen isotope negative neutral beam in Large Helical Device
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-06T16%3A50%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-iop_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Two-dimensional%20beam%20emission%20spectroscopy%20for%20hydrogen%20isotope%20negative%20neutral%20beam%20in%20Large%20Helical%20Device&rft.jtitle=Plasma%20physics%20and%20controlled%20fusion&rft.au=Kobayashi,%20T&rft.date=2020-10-28&rft.volume=62&rft.issue=12&rft.spage=125011&rft.pages=125011-&rft.issn=0741-3335&rft.eissn=1361-6587&rft.coden=PLPHBZ&rft_id=info:doi/10.1088/1361-6587/abbf08&rft_dat=%3Ciop_cross%3Eppcfabbf08%3C/iop_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true