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Investigation of terahertz sheet beam traveling wave tube amplifier with nanocomposite cathode
Particle-in-cell simulations of a staggered double grating array traveling wave tube intended as a wideband amplifier for terahertz communications, sensing, and imaging applications showed that, for an electron beam power of 5 kW, it produces 150–275 W, corresponding to 3%–5.5% electronic efficiency...
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| Published in: | Physics of plasmas 2010-12, Vol.17 (12), p.123105-123105-4 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c382t-82263f7c9c10a94b9ed316a7298b6c51497da2de382223986e1ed8fdbdabfb253 |
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| cites | cdi_FETCH-LOGICAL-c382t-82263f7c9c10a94b9ed316a7298b6c51497da2de382223986e1ed8fdbdabfb253 |
| container_end_page | 123105-4 |
| container_issue | 12 |
| container_start_page | 123105 |
| container_title | Physics of plasmas |
| container_volume | 17 |
| creator | Shin, Young-Min Zhao, Jinfeng Barnett, Larry R. Luhmann, Neville C. |
| description | Particle-in-cell simulations of a staggered double grating array traveling wave tube intended as a wideband amplifier for terahertz communications, sensing, and imaging applications showed that, for an electron beam power of 5 kW, it produces 150–275 W, corresponding to 3%–5.5% electronic efficiency, at 0.22 THz with over
∼
30
%
bandwidth and with greater than 12 dB/cm growth rate. The circuit has been fabricated by both UV lithography and high precision computer-numerical-control machining with
∼
2
–
3
μ
m
dimensional tolerance and
∼
50
nm
surface roughness. A scandate nanocomposite
(
Sc
2
O
3
–
W
)
cathode for the electron beam source has successfully emitted
120
A
/
cm
2
(space charge limited) at
1150
°
C
and
50
A
/
cm
2
at
1050
°
C
for 8000 h as required to produce the requisite high current density electron beam. |
| doi_str_mv | 10.1063/1.3525098 |
| format | article |
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∼
30
%
bandwidth and with greater than 12 dB/cm growth rate. The circuit has been fabricated by both UV lithography and high precision computer-numerical-control machining with
∼
2
–
3
μ
m
dimensional tolerance and
∼
50
nm
surface roughness. A scandate nanocomposite
(
Sc
2
O
3
–
W
)
cathode for the electron beam source has successfully emitted
120
A
/
cm
2
(space charge limited) at
1150
°
C
and
50
A
/
cm
2
at
1050
°
C
for 8000 h as required to produce the requisite high current density electron beam.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.3525098</identifier><identifier>CODEN: PHPAEN</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; AMPLIFIERS ; BEAM-PLASMA SYSTEMS ; BEAMS ; CATHODES ; CHALCOGENIDES ; COMPOSITE MATERIALS ; CURRENT DENSITY ; ELECTRODES ; ELECTRON BEAMS ; ELECTRON TUBES ; ELECTRONIC EQUIPMENT ; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ; LEPTON BEAMS ; MATERIALS ; MICROWAVE EQUIPMENT ; MICROWAVE TUBES ; NANOSTRUCTURES ; OXIDES ; OXYGEN COMPOUNDS ; PARTICLE BEAMS ; PLASMA SIMULATION ; SCANDIUM COMPOUNDS ; SCANDIUM OXIDES ; SIMULATION ; TRANSITION ELEMENT COMPOUNDS ; TRAVELLING WAVE TUBES</subject><ispartof>Physics of plasmas, 2010-12, Vol.17 (12), p.123105-123105-4</ispartof><rights>American Institute of Physics</rights><rights>2010 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c382t-82263f7c9c10a94b9ed316a7298b6c51497da2de382223986e1ed8fdbdabfb253</citedby><cites>FETCH-LOGICAL-c382t-82263f7c9c10a94b9ed316a7298b6c51497da2de382223986e1ed8fdbdabfb253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/pop/article-lookup/doi/10.1063/1.3525098$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,776,778,780,791,881,27903,27904,76129</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21532109$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Shin, Young-Min</creatorcontrib><creatorcontrib>Zhao, Jinfeng</creatorcontrib><creatorcontrib>Barnett, Larry R.</creatorcontrib><creatorcontrib>Luhmann, Neville C.</creatorcontrib><title>Investigation of terahertz sheet beam traveling wave tube amplifier with nanocomposite cathode</title><title>Physics of plasmas</title><description>Particle-in-cell simulations of a staggered double grating array traveling wave tube intended as a wideband amplifier for terahertz communications, sensing, and imaging applications showed that, for an electron beam power of 5 kW, it produces 150–275 W, corresponding to 3%–5.5% electronic efficiency, at 0.22 THz with over
∼
30
%
bandwidth and with greater than 12 dB/cm growth rate. The circuit has been fabricated by both UV lithography and high precision computer-numerical-control machining with
∼
2
–
3
μ
m
dimensional tolerance and
∼
50
nm
surface roughness. A scandate nanocomposite
(
Sc
2
O
3
–
W
)
cathode for the electron beam source has successfully emitted
120
A
/
cm
2
(space charge limited) at
1150
°
C
and
50
A
/
cm
2
at
1050
°
C
for 8000 h as required to produce the requisite high current density electron beam.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>AMPLIFIERS</subject><subject>BEAM-PLASMA SYSTEMS</subject><subject>BEAMS</subject><subject>CATHODES</subject><subject>CHALCOGENIDES</subject><subject>COMPOSITE MATERIALS</subject><subject>CURRENT DENSITY</subject><subject>ELECTRODES</subject><subject>ELECTRON BEAMS</subject><subject>ELECTRON TUBES</subject><subject>ELECTRONIC EQUIPMENT</subject><subject>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</subject><subject>LEPTON BEAMS</subject><subject>MATERIALS</subject><subject>MICROWAVE EQUIPMENT</subject><subject>MICROWAVE TUBES</subject><subject>NANOSTRUCTURES</subject><subject>OXIDES</subject><subject>OXYGEN COMPOUNDS</subject><subject>PARTICLE BEAMS</subject><subject>PLASMA SIMULATION</subject><subject>SCANDIUM COMPOUNDS</subject><subject>SCANDIUM OXIDES</subject><subject>SIMULATION</subject><subject>TRANSITION ELEMENT COMPOUNDS</subject><subject>TRAVELLING WAVE TUBES</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kF1LwzAUhosoOKcX_oOAVwqd-WjT5EaQ4cdg4I2CV4Y0PVkra1OSuKG_3s4NRESvznvxnJdzniQ5JXhCMGeXZMJymmMp9pIRwUKmBS-y_U0ucMp59nyYHIXwijHOeC5GycusW0GIzULHxnXIWRTB6xp8_EChBoioBN2i6PUKlk23QOshoPhWAtJtv2xsAx6tm1ijTnfOuLZ3oYmAjI61q-A4ObB6GeBkN8fJ0-3N4_Q-nT_czabX89QwQWMqKOXMFkYagrXMSgkVI1wXVIqSm5xksqg0rWCAKWVScCBQCVuVlS5tSXM2Ts62vW74RQUznGBq47oOTFSU5IwSLAfqfEsZ70LwYFXvm1b7d0Ww2uhTRO30DezVlt2Ufcn5G_7hUDmrBodDwcVfBSvnv5dVX9n_4N-nfQLTgZWL</recordid><startdate>20101201</startdate><enddate>20101201</enddate><creator>Shin, Young-Min</creator><creator>Zhao, Jinfeng</creator><creator>Barnett, Larry R.</creator><creator>Luhmann, Neville C.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20101201</creationdate><title>Investigation of terahertz sheet beam traveling wave tube amplifier with nanocomposite cathode</title><author>Shin, Young-Min ; Zhao, Jinfeng ; Barnett, Larry R. ; Luhmann, Neville C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c382t-82263f7c9c10a94b9ed316a7298b6c51497da2de382223986e1ed8fdbdabfb253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>AMPLIFIERS</topic><topic>BEAM-PLASMA SYSTEMS</topic><topic>BEAMS</topic><topic>CATHODES</topic><topic>CHALCOGENIDES</topic><topic>COMPOSITE MATERIALS</topic><topic>CURRENT DENSITY</topic><topic>ELECTRODES</topic><topic>ELECTRON BEAMS</topic><topic>ELECTRON TUBES</topic><topic>ELECTRONIC EQUIPMENT</topic><topic>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</topic><topic>LEPTON BEAMS</topic><topic>MATERIALS</topic><topic>MICROWAVE EQUIPMENT</topic><topic>MICROWAVE TUBES</topic><topic>NANOSTRUCTURES</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>PARTICLE BEAMS</topic><topic>PLASMA SIMULATION</topic><topic>SCANDIUM COMPOUNDS</topic><topic>SCANDIUM OXIDES</topic><topic>SIMULATION</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>TRAVELLING WAVE TUBES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shin, Young-Min</creatorcontrib><creatorcontrib>Zhao, Jinfeng</creatorcontrib><creatorcontrib>Barnett, Larry R.</creatorcontrib><creatorcontrib>Luhmann, Neville C.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shin, Young-Min</au><au>Zhao, Jinfeng</au><au>Barnett, Larry R.</au><au>Luhmann, Neville C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation of terahertz sheet beam traveling wave tube amplifier with nanocomposite cathode</atitle><jtitle>Physics of plasmas</jtitle><date>2010-12-01</date><risdate>2010</risdate><volume>17</volume><issue>12</issue><spage>123105</spage><epage>123105-4</epage><pages>123105-123105-4</pages><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>Particle-in-cell simulations of a staggered double grating array traveling wave tube intended as a wideband amplifier for terahertz communications, sensing, and imaging applications showed that, for an electron beam power of 5 kW, it produces 150–275 W, corresponding to 3%–5.5% electronic efficiency, at 0.22 THz with over
∼
30
%
bandwidth and with greater than 12 dB/cm growth rate. The circuit has been fabricated by both UV lithography and high precision computer-numerical-control machining with
∼
2
–
3
μ
m
dimensional tolerance and
∼
50
nm
surface roughness. A scandate nanocomposite
(
Sc
2
O
3
–
W
)
cathode for the electron beam source has successfully emitted
120
A
/
cm
2
(space charge limited) at
1150
°
C
and
50
A
/
cm
2
at
1050
°
C
for 8000 h as required to produce the requisite high current density electron beam.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.3525098</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1070-664X |
| ispartof | Physics of plasmas, 2010-12, Vol.17 (12), p.123105-123105-4 |
| issn | 1070-664X 1089-7674 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_3525098Investigation_of_ter |
| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); American Institute of Physics |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY AMPLIFIERS BEAM-PLASMA SYSTEMS BEAMS CATHODES CHALCOGENIDES COMPOSITE MATERIALS CURRENT DENSITY ELECTRODES ELECTRON BEAMS ELECTRON TUBES ELECTRONIC EQUIPMENT INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY LEPTON BEAMS MATERIALS MICROWAVE EQUIPMENT MICROWAVE TUBES NANOSTRUCTURES OXIDES OXYGEN COMPOUNDS PARTICLE BEAMS PLASMA SIMULATION SCANDIUM COMPOUNDS SCANDIUM OXIDES SIMULATION TRANSITION ELEMENT COMPOUNDS TRAVELLING WAVE TUBES |
| title | Investigation of terahertz sheet beam traveling wave tube amplifier with nanocomposite cathode |
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