Optimization of optical filters for ITER edge Thomson scattering diagnostics
In the ITER edge Thomson scattering measurement system, polychromators with optical band-pass filters and avalanche photodiodes are planned to be used. In this paper, we optimized the transmission wavelength ranges of the optical filters by a numerical method. Since measurements in a high electron t...
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| Veröffentlicht in: | Fusion engineering and design 2009-12, Vol.84 (12), p.2214-2220 |
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| creator | Kajita, Shin Hatae, Takaki Naito, Osamu |
| description | In the ITER edge Thomson scattering measurement system, polychromators with optical band-pass filters and avalanche photodiodes are planned to be used. In this paper, we optimized the transmission wavelength ranges of the optical filters by a numerical method. Since measurements in a high electron temperature range are required for the measurement system, the Thomson spectrum could overlap a strong line emission of
D
α
when the electron temperature is rather high. It is shown that a filter whose transmission wavelength range is shorter than
D
α
becomes important to decrease the measurement error in the high temperature range. Moreover, it is found that a filter whose transmission wavelength range is above 1064
nm (laser wavelength) is useful to improve the measurement accuracy, in particular, when the number of filters is more than six. |
| doi_str_mv | 10.1016/j.fusengdes.2009.04.005 |
| format | Article |
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D
α
when the electron temperature is rather high. It is shown that a filter whose transmission wavelength range is shorter than
D
α
becomes important to decrease the measurement error in the high temperature range. Moreover, it is found that a filter whose transmission wavelength range is above 1064
nm (laser wavelength) is useful to improve the measurement accuracy, in particular, when the number of filters is more than six.</description><identifier>ISSN: 0920-3796</identifier><identifier>EISSN: 1873-7196</identifier><identifier>DOI: 10.1016/j.fusengdes.2009.04.005</identifier><identifier>CODEN: FEDEEE</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Bandpass filters ; Bremsstrahlung radiation ; Controled nuclear fusion plants ; Electron temperature ; Energy ; Energy. Thermal use of fuels ; Error analysis ; Exact sciences and technology ; Installations for energy generation and conversion: thermal and electrical energy ; Laser Thomson scattering ; Lasers ; Optical filter ; Optical filters ; Optimization ; Polychromator ; Thomson scattering ; Wavelengths</subject><ispartof>Fusion engineering and design, 2009-12, Vol.84 (12), p.2214-2220</ispartof><rights>2009 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c443t-cfeb1ca23d61a6bb67d293557a30cc7cdfc6de2f2469e108c48d0175b505c6fa3</citedby><cites>FETCH-LOGICAL-c443t-cfeb1ca23d61a6bb67d293557a30cc7cdfc6de2f2469e108c48d0175b505c6fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0920379609002087$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22154758$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Kajita, Shin</creatorcontrib><creatorcontrib>Hatae, Takaki</creatorcontrib><creatorcontrib>Naito, Osamu</creatorcontrib><title>Optimization of optical filters for ITER edge Thomson scattering diagnostics</title><title>Fusion engineering and design</title><description>In the ITER edge Thomson scattering measurement system, polychromators with optical band-pass filters and avalanche photodiodes are planned to be used. In this paper, we optimized the transmission wavelength ranges of the optical filters by a numerical method. Since measurements in a high electron temperature range are required for the measurement system, the Thomson spectrum could overlap a strong line emission of
D
α
when the electron temperature is rather high. It is shown that a filter whose transmission wavelength range is shorter than
D
α
becomes important to decrease the measurement error in the high temperature range. Moreover, it is found that a filter whose transmission wavelength range is above 1064
nm (laser wavelength) is useful to improve the measurement accuracy, in particular, when the number of filters is more than six.</description><subject>Applied sciences</subject><subject>Bandpass filters</subject><subject>Bremsstrahlung radiation</subject><subject>Controled nuclear fusion plants</subject><subject>Electron temperature</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Error analysis</subject><subject>Exact sciences and technology</subject><subject>Installations for energy generation and conversion: thermal and electrical energy</subject><subject>Laser Thomson scattering</subject><subject>Lasers</subject><subject>Optical filter</subject><subject>Optical filters</subject><subject>Optimization</subject><subject>Polychromator</subject><subject>Thomson scattering</subject><subject>Wavelengths</subject><issn>0920-3796</issn><issn>1873-7196</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LJDEQhsOisOPHb7Avi6fuTTqdpPsooq4wICzjOWQqldkMPZ0x1SPorzcy4nWhoCjqeevjZexK8EZwoX9vm3AgnDYeqWk5HxreNZyrH2wheiNrIwZ9whZ8aHktzaB_sjOiLefClFiw5dN-jrv47uaYpiqFKpUa3FiFOM6YqQopV4-ru78V-g1Wq39pRwUkcHNpx2lT-eg2U6Kiogt2GtxIePmVz9nz_d3q9k-9fHp4vL1Z1tB1cq4h4FqAa6XXwun1WhvfDlIp4yQHMOADaI9taDs9oOA9dL0vx6q14gp0cPKcXR_n7nN6OSDNdhcJcBzdhOlA1ihpOtFrWUhzJCEnoozB7nPcufxmBbef9tmt_bbPftpneWeLfUX562uHK8-OIbsJIn3L21aozqi-cDdHDsvDrxGzJYg4AfqYEWbrU_zvrg-0wYt0</recordid><startdate>20091201</startdate><enddate>20091201</enddate><creator>Kajita, Shin</creator><creator>Hatae, Takaki</creator><creator>Naito, Osamu</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20091201</creationdate><title>Optimization of optical filters for ITER edge Thomson scattering diagnostics</title><author>Kajita, Shin ; Hatae, Takaki ; Naito, Osamu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c443t-cfeb1ca23d61a6bb67d293557a30cc7cdfc6de2f2469e108c48d0175b505c6fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Bandpass filters</topic><topic>Bremsstrahlung radiation</topic><topic>Controled nuclear fusion plants</topic><topic>Electron temperature</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Error analysis</topic><topic>Exact sciences and technology</topic><topic>Installations for energy generation and conversion: thermal and electrical energy</topic><topic>Laser Thomson scattering</topic><topic>Lasers</topic><topic>Optical filter</topic><topic>Optical filters</topic><topic>Optimization</topic><topic>Polychromator</topic><topic>Thomson scattering</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kajita, Shin</creatorcontrib><creatorcontrib>Hatae, Takaki</creatorcontrib><creatorcontrib>Naito, Osamu</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Fusion engineering and design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kajita, Shin</au><au>Hatae, Takaki</au><au>Naito, Osamu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimization of optical filters for ITER edge Thomson scattering diagnostics</atitle><jtitle>Fusion engineering and design</jtitle><date>2009-12-01</date><risdate>2009</risdate><volume>84</volume><issue>12</issue><spage>2214</spage><epage>2220</epage><pages>2214-2220</pages><issn>0920-3796</issn><eissn>1873-7196</eissn><coden>FEDEEE</coden><abstract>In the ITER edge Thomson scattering measurement system, polychromators with optical band-pass filters and avalanche photodiodes are planned to be used. In this paper, we optimized the transmission wavelength ranges of the optical filters by a numerical method. Since measurements in a high electron temperature range are required for the measurement system, the Thomson spectrum could overlap a strong line emission of
D
α
when the electron temperature is rather high. It is shown that a filter whose transmission wavelength range is shorter than
D
α
becomes important to decrease the measurement error in the high temperature range. Moreover, it is found that a filter whose transmission wavelength range is above 1064
nm (laser wavelength) is useful to improve the measurement accuracy, in particular, when the number of filters is more than six.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fusengdes.2009.04.005</doi><tpages>7</tpages></addata></record> |
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| ispartof | Fusion engineering and design, 2009-12, Vol.84 (12), p.2214-2220 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Bandpass filters Bremsstrahlung radiation Controled nuclear fusion plants Electron temperature Energy Energy. Thermal use of fuels Error analysis Exact sciences and technology Installations for energy generation and conversion: thermal and electrical energy Laser Thomson scattering Lasers Optical filter Optical filters Optimization Polychromator Thomson scattering Wavelengths |
| title | Optimization of optical filters for ITER edge Thomson scattering diagnostics |
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