Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge
We present a high-sensitivity technique for time-resolved imaging of millimeter waves (MMWs) using the visible continuum (VC) from the positive column (PC) of a medium-pressure Cs-Xe dc discharge. For the MMW imaging application, a uniform plasma slab of the PC of a Cs-Xe discharge with 10 × 8 cm...
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| Veröffentlicht in: | Journal of applied physics 2010-03, Vol.107 (6), p.063301-063301-11 |
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| container_issue | 6 |
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| container_title | Journal of applied physics |
| container_volume | 107 |
| creator | Gitlin, M. S. Golovanov, V. V. Spivakov, A. G. Tsvetkov, A. I. Zelenogorskiy, V. V. |
| description | We present a high-sensitivity technique for time-resolved imaging of millimeter waves (MMWs) using the visible continuum (VC) from the positive column (PC) of a medium-pressure Cs-Xe dc discharge. For the MMW imaging application, a uniform plasma slab of the PC of a Cs-Xe discharge with
10
×
8
cm
2
aperture and 2 cm in thickness was generated for 45 Torr xenon. The imaging technique is based on the fact that the intensity of the e-Xe bremsstrahlung continuum from the PC increases in the visible region when the electrons in the plasma are heated by MMWs. It is shown that in the MMW intensity range from zero to the threshold of the microwave-induced plasma breakdown, the intensity of the VC from the PC of a Cs-Xe discharge increases approximately as a second-order polynomial function of the MMW intensity. The obtained experimental data agree well with our calculations of the dependence of the VC intensity on electron temperature. The Ka-band MMW field patterns at the output of conical horn antennas and in the quasioptical beam were imaged using the discharge technique. It is shown that the technique can be used for time-resolved measurement of the profiles of watt- and subwatt-level MMWs. An energy flux sensitivity of the technique of about
10
μ
J
/
cm
2
in the Ka-band was demonstrated. The temporal resolution of the technique is about
0.8
μ
s
. Our modeling of the transient behavior of the electron temperature in the PC shows that the time history of the electron temperature variation coincides well with the measured time history of the VC intensity variation. |
| doi_str_mv | 10.1063/1.3327218 |
| format | Article |
| fullrecord | <record><control><sourceid>scitation_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_21476157</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>jap</sourcerecordid><originalsourceid>FETCH-LOGICAL-c312t-3ee5fbb2f28ffac46af288fc7e08965f6a6cec076c463f684eed8d8acaf4468d3</originalsourceid><addsrcrecordid>eNp1kE1LxDAQhoMouH4c_AcBTx66Jk2bphdBFr9gwcsK3kI2nexG2mZJ0or_3pSuR08z8D68zDwI3VCypISze7pkLK9yKk7QghJRZ1VZklO0ICSnmair-hxdhPBFCKWC1QvkN7aDzENw7QgNtp3a2X6HncGdbduURfD4W40Q8BCmZLTBblvA2vXR9sPQYeNdh-Me8MEFG-04Ze3Q9VOJwquQfQJuNG5s0Hvld3CFzoxqA1wf5yX6eH7arF6z9fvL2-pxnWlG85gxgNJst7nJhTFKF1ylTRhdQXqLl4YrrkGTiqeIGS4KgEY0QmllioKLhl2i27nXhWhl0DaC3qeze9BR5rSoOC2rRN3NlPYuBA9GHnyy4H8kJXJSKqk8Kk3sw8xOZSpa1_8PT17ln1c5e2W_zg6Adw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge</title><source>AIP Journals Complete</source><source>AIP Digital Archive</source><source>Alma/SFX Local Collection</source><creator>Gitlin, M. S. ; Golovanov, V. V. ; Spivakov, A. G. ; Tsvetkov, A. I. ; Zelenogorskiy, V. V.</creator><creatorcontrib>Gitlin, M. S. ; Golovanov, V. V. ; Spivakov, A. G. ; Tsvetkov, A. I. ; Zelenogorskiy, V. V.</creatorcontrib><description>We present a high-sensitivity technique for time-resolved imaging of millimeter waves (MMWs) using the visible continuum (VC) from the positive column (PC) of a medium-pressure Cs-Xe dc discharge. For the MMW imaging application, a uniform plasma slab of the PC of a Cs-Xe discharge with
10
×
8
cm
2
aperture and 2 cm in thickness was generated for 45 Torr xenon. The imaging technique is based on the fact that the intensity of the e-Xe bremsstrahlung continuum from the PC increases in the visible region when the electrons in the plasma are heated by MMWs. It is shown that in the MMW intensity range from zero to the threshold of the microwave-induced plasma breakdown, the intensity of the VC from the PC of a Cs-Xe discharge increases approximately as a second-order polynomial function of the MMW intensity. The obtained experimental data agree well with our calculations of the dependence of the VC intensity on electron temperature. The Ka-band MMW field patterns at the output of conical horn antennas and in the quasioptical beam were imaged using the discharge technique. It is shown that the technique can be used for time-resolved measurement of the profiles of watt- and subwatt-level MMWs. An energy flux sensitivity of the technique of about
10
μ
J
/
cm
2
in the Ka-band was demonstrated. The temporal resolution of the technique is about
0.8
μ
s
. Our modeling of the transient behavior of the electron temperature in the PC shows that the time history of the electron temperature variation coincides well with the measured time history of the VC intensity variation.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.3327218</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ALKALI METALS ; ANTENNAS ; BREMSSTRAHLUNG ; CESIUM ; ELECTRIC DISCHARGES ; ELECTRICAL EQUIPMENT ; ELECTROMAGNETIC RADIATION ; ELECTRON TEMPERATURE ; ELECTRONS ; ELEMENTARY PARTICLES ; ELEMENTS ; FERMIONS ; FLUIDS ; GASES ; HIGH-FREQUENCY DISCHARGES ; ION TEMPERATURE ; LEPTONS ; METALS ; MICROWAVE RADIATION ; NONMETALS ; PLASMA ; PLASMA DIAGNOSTICS ; POSITIVE COLUMN ; RADIATIONS ; RARE GASES ; RESOLUTION ; RF SYSTEMS ; TIME RESOLUTION ; TIMING PROPERTIES ; TRANSIENTS ; XENON</subject><ispartof>Journal of applied physics, 2010-03, Vol.107 (6), p.063301-063301-11</ispartof><rights>2010 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-3ee5fbb2f28ffac46af288fc7e08965f6a6cec076c463f684eed8d8acaf4468d3</citedby><cites>FETCH-LOGICAL-c312t-3ee5fbb2f28ffac46af288fc7e08965f6a6cec076c463f684eed8d8acaf4468d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/jap/article-lookup/doi/10.1063/1.3327218$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,777,781,791,882,1554,4498,27905,27906,76133,76139</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21476157$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Gitlin, M. S.</creatorcontrib><creatorcontrib>Golovanov, V. V.</creatorcontrib><creatorcontrib>Spivakov, A. G.</creatorcontrib><creatorcontrib>Tsvetkov, A. I.</creatorcontrib><creatorcontrib>Zelenogorskiy, V. V.</creatorcontrib><title>Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge</title><title>Journal of applied physics</title><description>We present a high-sensitivity technique for time-resolved imaging of millimeter waves (MMWs) using the visible continuum (VC) from the positive column (PC) of a medium-pressure Cs-Xe dc discharge. For the MMW imaging application, a uniform plasma slab of the PC of a Cs-Xe discharge with
10
×
8
cm
2
aperture and 2 cm in thickness was generated for 45 Torr xenon. The imaging technique is based on the fact that the intensity of the e-Xe bremsstrahlung continuum from the PC increases in the visible region when the electrons in the plasma are heated by MMWs. It is shown that in the MMW intensity range from zero to the threshold of the microwave-induced plasma breakdown, the intensity of the VC from the PC of a Cs-Xe discharge increases approximately as a second-order polynomial function of the MMW intensity. The obtained experimental data agree well with our calculations of the dependence of the VC intensity on electron temperature. The Ka-band MMW field patterns at the output of conical horn antennas and in the quasioptical beam were imaged using the discharge technique. It is shown that the technique can be used for time-resolved measurement of the profiles of watt- and subwatt-level MMWs. An energy flux sensitivity of the technique of about
10
μ
J
/
cm
2
in the Ka-band was demonstrated. The temporal resolution of the technique is about
0.8
μ
s
. Our modeling of the transient behavior of the electron temperature in the PC shows that the time history of the electron temperature variation coincides well with the measured time history of the VC intensity variation.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ALKALI METALS</subject><subject>ANTENNAS</subject><subject>BREMSSTRAHLUNG</subject><subject>CESIUM</subject><subject>ELECTRIC DISCHARGES</subject><subject>ELECTRICAL EQUIPMENT</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ELECTRON TEMPERATURE</subject><subject>ELECTRONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>ELEMENTS</subject><subject>FERMIONS</subject><subject>FLUIDS</subject><subject>GASES</subject><subject>HIGH-FREQUENCY DISCHARGES</subject><subject>ION TEMPERATURE</subject><subject>LEPTONS</subject><subject>METALS</subject><subject>MICROWAVE RADIATION</subject><subject>NONMETALS</subject><subject>PLASMA</subject><subject>PLASMA DIAGNOSTICS</subject><subject>POSITIVE COLUMN</subject><subject>RADIATIONS</subject><subject>RARE GASES</subject><subject>RESOLUTION</subject><subject>RF SYSTEMS</subject><subject>TIME RESOLUTION</subject><subject>TIMING PROPERTIES</subject><subject>TRANSIENTS</subject><subject>XENON</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhoMouH4c_AcBTx66Jk2bphdBFr9gwcsK3kI2nexG2mZJ0or_3pSuR08z8D68zDwI3VCypISze7pkLK9yKk7QghJRZ1VZklO0ICSnmair-hxdhPBFCKWC1QvkN7aDzENw7QgNtp3a2X6HncGdbduURfD4W40Q8BCmZLTBblvA2vXR9sPQYeNdh-Me8MEFG-04Ze3Q9VOJwquQfQJuNG5s0Hvld3CFzoxqA1wf5yX6eH7arF6z9fvL2-pxnWlG85gxgNJst7nJhTFKF1ylTRhdQXqLl4YrrkGTiqeIGS4KgEY0QmllioKLhl2i27nXhWhl0DaC3qeze9BR5rSoOC2rRN3NlPYuBA9GHnyy4H8kJXJSKqk8Kk3sw8xOZSpa1_8PT17ln1c5e2W_zg6Adw</recordid><startdate>20100315</startdate><enddate>20100315</enddate><creator>Gitlin, M. S.</creator><creator>Golovanov, V. V.</creator><creator>Spivakov, A. G.</creator><creator>Tsvetkov, A. I.</creator><creator>Zelenogorskiy, V. V.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20100315</creationdate><title>Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge</title><author>Gitlin, M. S. ; Golovanov, V. V. ; Spivakov, A. G. ; Tsvetkov, A. I. ; Zelenogorskiy, V. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-3ee5fbb2f28ffac46af288fc7e08965f6a6cec076c463f684eed8d8acaf4468d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ALKALI METALS</topic><topic>ANTENNAS</topic><topic>BREMSSTRAHLUNG</topic><topic>CESIUM</topic><topic>ELECTRIC DISCHARGES</topic><topic>ELECTRICAL EQUIPMENT</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELECTRON TEMPERATURE</topic><topic>ELECTRONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>ELEMENTS</topic><topic>FERMIONS</topic><topic>FLUIDS</topic><topic>GASES</topic><topic>HIGH-FREQUENCY DISCHARGES</topic><topic>ION TEMPERATURE</topic><topic>LEPTONS</topic><topic>METALS</topic><topic>MICROWAVE RADIATION</topic><topic>NONMETALS</topic><topic>PLASMA</topic><topic>PLASMA DIAGNOSTICS</topic><topic>POSITIVE COLUMN</topic><topic>RADIATIONS</topic><topic>RARE GASES</topic><topic>RESOLUTION</topic><topic>RF SYSTEMS</topic><topic>TIME RESOLUTION</topic><topic>TIMING PROPERTIES</topic><topic>TRANSIENTS</topic><topic>XENON</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gitlin, M. S.</creatorcontrib><creatorcontrib>Golovanov, V. V.</creatorcontrib><creatorcontrib>Spivakov, A. G.</creatorcontrib><creatorcontrib>Tsvetkov, A. I.</creatorcontrib><creatorcontrib>Zelenogorskiy, V. V.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gitlin, M. S.</au><au>Golovanov, V. V.</au><au>Spivakov, A. G.</au><au>Tsvetkov, A. I.</au><au>Zelenogorskiy, V. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge</atitle><jtitle>Journal of applied physics</jtitle><date>2010-03-15</date><risdate>2010</risdate><volume>107</volume><issue>6</issue><spage>063301</spage><epage>063301-11</epage><pages>063301-063301-11</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>We present a high-sensitivity technique for time-resolved imaging of millimeter waves (MMWs) using the visible continuum (VC) from the positive column (PC) of a medium-pressure Cs-Xe dc discharge. For the MMW imaging application, a uniform plasma slab of the PC of a Cs-Xe discharge with
10
×
8
cm
2
aperture and 2 cm in thickness was generated for 45 Torr xenon. The imaging technique is based on the fact that the intensity of the e-Xe bremsstrahlung continuum from the PC increases in the visible region when the electrons in the plasma are heated by MMWs. It is shown that in the MMW intensity range from zero to the threshold of the microwave-induced plasma breakdown, the intensity of the VC from the PC of a Cs-Xe discharge increases approximately as a second-order polynomial function of the MMW intensity. The obtained experimental data agree well with our calculations of the dependence of the VC intensity on electron temperature. The Ka-band MMW field patterns at the output of conical horn antennas and in the quasioptical beam were imaged using the discharge technique. It is shown that the technique can be used for time-resolved measurement of the profiles of watt- and subwatt-level MMWs. An energy flux sensitivity of the technique of about
10
μ
J
/
cm
2
in the Ka-band was demonstrated. The temporal resolution of the technique is about
0.8
μ
s
. Our modeling of the transient behavior of the electron temperature in the PC shows that the time history of the electron temperature variation coincides well with the measured time history of the VC intensity variation.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.3327218</doi></addata></record> |
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| language | eng |
| recordid | cdi_osti_scitechconnect_21476157 |
| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ALKALI METALS ANTENNAS BREMSSTRAHLUNG CESIUM ELECTRIC DISCHARGES ELECTRICAL EQUIPMENT ELECTROMAGNETIC RADIATION ELECTRON TEMPERATURE ELECTRONS ELEMENTARY PARTICLES ELEMENTS FERMIONS FLUIDS GASES HIGH-FREQUENCY DISCHARGES ION TEMPERATURE LEPTONS METALS MICROWAVE RADIATION NONMETALS PLASMA PLASMA DIAGNOSTICS POSITIVE COLUMN RADIATIONS RARE GASES RESOLUTION RF SYSTEMS TIME RESOLUTION TIMING PROPERTIES TRANSIENTS XENON |
| title | Time-resolved imaging of millimeter waves using visible continuum from the positive column of a Cs-Xe dc discharge |
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