Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes
Small tip-type CNT emitters with the diameter of 0.8 mm were fabricated for miniaturized X-ray tubes. The CNT emitters were prepared by dropping CNTs and silver nanoparticles on a flat surface of a W metal tip followed by annealing at 800°C for 2 h under vacuum. The CNT emitters exhibit good field e...
Gespeichert in:
| Veröffentlicht in: | Journal of nanomaterials 2012-01, Vol.2012 (2012), p.1-6 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 6 |
|---|---|
| container_issue | 2012 |
| container_start_page | 1 |
| container_title | Journal of nanomaterials |
| container_volume | 2012 |
| creator | Cho, Sung Oh Heo, Sung Hwan Ha, Jun Mok Kim, Hyun Jin |
| description | Small tip-type CNT emitters with the diameter of 0.8 mm were fabricated for miniaturized X-ray tubes. The CNT emitters were prepared by dropping CNTs and silver nanoparticles on a flat surface of a W metal tip followed by annealing at 800°C for 2 h under vacuum. The CNT emitters exhibit good field emission properties with the threshold electric field of 1.15 V/μm and the field enhancement factor of 12,050. CNTs were well attached to a flat W tip surface without coating on the side plane of the tip, and thus beam divergence could be minimized. Consequently, a miniaturized X-ray tube with the inner diameter of 5 mm was successfully demonstrated using the tip-type CNT emitter. |
| doi_str_mv | 10.1155/2012/854602 |
| format | Article |
| fullrecord | <record><control><sourceid>emarefa_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1155_2012_854602</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>998564</sourcerecordid><originalsourceid>FETCH-LOGICAL-c327t-752287daa8383f357a4e72c8db7ac902cfb2378ae0e8a2d8502006d61d6a60353</originalsourceid><addsrcrecordid>eNqFz89LwzAYxvEgCs7pybPQsxKXvGl-9CLI2FSYCq6Ct_K2STHSbiPpGPOvd7Oyq6f3PXx44EvIJWe3nEs5AsZhZGSqGByRAVdG05RDdnz4OTslZzF-MZbKTMKA3M1bbBo699_OJtMGO5r7VTJ-yZNJ67vOhZjUy5A8-4XHbh1-2Qd9w22Sr0sXz8lJjU10F393SN6nk3z8SGevD0_j-xmtBOiOaglgtEU0wohaSI2p01AZW2qsMgZVXYLQBh1zBsEayYAxZRW3ChUTUgzJTb9bhWWMwdXFKvgWw7bgrNinF_v0ok_f6etef_qFxY3_B1_12O2Iq_GAs8xIlYofzztgDA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes</title><source>Wiley Online Library Open Access</source><source>EZB-FREE-00999 freely available EZB journals</source><source>Alma/SFX Local Collection</source><source>Free Full-Text Journals in Chemistry</source><creator>Cho, Sung Oh ; Heo, Sung Hwan ; Ha, Jun Mok ; Kim, Hyun Jin</creator><contributor>Li, Yue</contributor><creatorcontrib>Cho, Sung Oh ; Heo, Sung Hwan ; Ha, Jun Mok ; Kim, Hyun Jin ; Li, Yue</creatorcontrib><description>Small tip-type CNT emitters with the diameter of 0.8 mm were fabricated for miniaturized X-ray tubes. The CNT emitters were prepared by dropping CNTs and silver nanoparticles on a flat surface of a W metal tip followed by annealing at 800°C for 2 h under vacuum. The CNT emitters exhibit good field emission properties with the threshold electric field of 1.15 V/μm and the field enhancement factor of 12,050. CNTs were well attached to a flat W tip surface without coating on the side plane of the tip, and thus beam divergence could be minimized. Consequently, a miniaturized X-ray tube with the inner diameter of 5 mm was successfully demonstrated using the tip-type CNT emitter.</description><identifier>ISSN: 1687-4110</identifier><identifier>EISSN: 1687-4129</identifier><identifier>DOI: 10.1155/2012/854602</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><ispartof>Journal of nanomaterials, 2012-01, Vol.2012 (2012), p.1-6</ispartof><rights>Copyright © 2012 Hyun Jin Kim et al.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c327t-752287daa8383f357a4e72c8db7ac902cfb2378ae0e8a2d8502006d61d6a60353</citedby><cites>FETCH-LOGICAL-c327t-752287daa8383f357a4e72c8db7ac902cfb2378ae0e8a2d8502006d61d6a60353</cites><orcidid>0000-0002-9434-7173</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><contributor>Li, Yue</contributor><creatorcontrib>Cho, Sung Oh</creatorcontrib><creatorcontrib>Heo, Sung Hwan</creatorcontrib><creatorcontrib>Ha, Jun Mok</creatorcontrib><creatorcontrib>Kim, Hyun Jin</creatorcontrib><title>Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes</title><title>Journal of nanomaterials</title><description>Small tip-type CNT emitters with the diameter of 0.8 mm were fabricated for miniaturized X-ray tubes. The CNT emitters were prepared by dropping CNTs and silver nanoparticles on a flat surface of a W metal tip followed by annealing at 800°C for 2 h under vacuum. The CNT emitters exhibit good field emission properties with the threshold electric field of 1.15 V/μm and the field enhancement factor of 12,050. CNTs were well attached to a flat W tip surface without coating on the side plane of the tip, and thus beam divergence could be minimized. Consequently, a miniaturized X-ray tube with the inner diameter of 5 mm was successfully demonstrated using the tip-type CNT emitter.</description><issn>1687-4110</issn><issn>1687-4129</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><recordid>eNqFz89LwzAYxvEgCs7pybPQsxKXvGl-9CLI2FSYCq6Ct_K2STHSbiPpGPOvd7Oyq6f3PXx44EvIJWe3nEs5AsZhZGSqGByRAVdG05RDdnz4OTslZzF-MZbKTMKA3M1bbBo699_OJtMGO5r7VTJ-yZNJ67vOhZjUy5A8-4XHbh1-2Qd9w22Sr0sXz8lJjU10F393SN6nk3z8SGevD0_j-xmtBOiOaglgtEU0wohaSI2p01AZW2qsMgZVXYLQBh1zBsEayYAxZRW3ChUTUgzJTb9bhWWMwdXFKvgWw7bgrNinF_v0ok_f6etef_qFxY3_B1_12O2Iq_GAs8xIlYofzztgDA</recordid><startdate>20120101</startdate><enddate>20120101</enddate><creator>Cho, Sung Oh</creator><creator>Heo, Sung Hwan</creator><creator>Ha, Jun Mok</creator><creator>Kim, Hyun Jin</creator><general>Hindawi Publishing Corporation</general><scope>ADJCN</scope><scope>AHFXO</scope><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-9434-7173</orcidid></search><sort><creationdate>20120101</creationdate><title>Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes</title><author>Cho, Sung Oh ; Heo, Sung Hwan ; Ha, Jun Mok ; Kim, Hyun Jin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-752287daa8383f357a4e72c8db7ac902cfb2378ae0e8a2d8502006d61d6a60353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cho, Sung Oh</creatorcontrib><creatorcontrib>Heo, Sung Hwan</creatorcontrib><creatorcontrib>Ha, Jun Mok</creatorcontrib><creatorcontrib>Kim, Hyun Jin</creatorcontrib><collection>الدوريات العلمية والإحصائية - e-Marefa Academic and Statistical Periodicals</collection><collection>معرفة - المحتوى العربي الأكاديمي المتكامل - e-Marefa Academic Complete</collection><collection>Hindawi Publishing Complete</collection><collection>Hindawi Publishing Subscription Journals</collection><collection>Hindawi Publishing Open Access</collection><collection>CrossRef</collection><jtitle>Journal of nanomaterials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cho, Sung Oh</au><au>Heo, Sung Hwan</au><au>Ha, Jun Mok</au><au>Kim, Hyun Jin</au><au>Li, Yue</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes</atitle><jtitle>Journal of nanomaterials</jtitle><date>2012-01-01</date><risdate>2012</risdate><volume>2012</volume><issue>2012</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>1687-4110</issn><eissn>1687-4129</eissn><abstract>Small tip-type CNT emitters with the diameter of 0.8 mm were fabricated for miniaturized X-ray tubes. The CNT emitters were prepared by dropping CNTs and silver nanoparticles on a flat surface of a W metal tip followed by annealing at 800°C for 2 h under vacuum. The CNT emitters exhibit good field emission properties with the threshold electric field of 1.15 V/μm and the field enhancement factor of 12,050. CNTs were well attached to a flat W tip surface without coating on the side plane of the tip, and thus beam divergence could be minimized. Consequently, a miniaturized X-ray tube with the inner diameter of 5 mm was successfully demonstrated using the tip-type CNT emitter.</abstract><cop>Cairo, Egypt</cop><pub>Hindawi Publishing Corporation</pub><doi>10.1155/2012/854602</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-9434-7173</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1687-4110 |
| ispartof | Journal of nanomaterials, 2012-01, Vol.2012 (2012), p.1-6 |
| issn | 1687-4110 1687-4129 |
| language | eng |
| recordid | cdi_crossref_primary_10_1155_2012_854602 |
| source | Wiley Online Library Open Access; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| title | Small-Sized Flat-Tip CNT Emitters for Miniaturized X-Ray Tubes |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T09%3A25%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-emarefa_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Small-Sized%20Flat-Tip%20CNT%20Emitters%20for%20Miniaturized%20X-Ray%20Tubes&rft.jtitle=Journal%20of%20nanomaterials&rft.au=Cho,%20Sung%20Oh&rft.date=2012-01-01&rft.volume=2012&rft.issue=2012&rft.spage=1&rft.epage=6&rft.pages=1-6&rft.issn=1687-4110&rft.eissn=1687-4129&rft_id=info:doi/10.1155/2012/854602&rft_dat=%3Cemarefa_cross%3E998564%3C/emarefa_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 |