{"id":1791,"date":"2023-09-21T11:49:01","date_gmt":"2023-09-21T03:49:01","guid":{"rendered":"https:\/\/www.bihec.com\/kimballphysics\/?p=1791"},"modified":"2023-09-21T11:49:01","modified_gmt":"2023-09-21T03:49:01","slug":"kimball-lanthanum-hexaboride-single-crystal-cathodes-%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e5%8d%95%e6%99%b6%e9%98%b4%e6%9e%81","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/kimballphysics\/kimball-lanthanum-hexaboride-single-crystal-cathodes-%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e5%8d%95%e6%99%b6%e9%98%b4%e6%9e%81\/","title":{"rendered":"Kimball Lanthanum Hexaboride Single Crystal Cathodes \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781"},"content":{"rendered":"<p>Kimball Lanthanum Hexaboride Single Crystal Cathodes <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e5%8d%95%e6%99%b6%e9%98%b4%e6%9e%81\/\" title=\"View all posts in \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781\" target=\"_blank\">\u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781<\/a><\/p>\n<p>&nbsp;<\/p>\n<p id=\"hLJdNIB\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-1792 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4.png\" alt=\"\" width=\"350\" height=\"299\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4.png?v=1695266729 858w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4-300x256.png?v=1695266729 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4-768x656.png?v=1695266729 768w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4-500x427.png?v=1695266729 500w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7a8191b4-800x683.png?v=1695266729 800w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/p>\n<p id=\"WDAQlei\"><img decoding=\"async\" loading=\"lazy\" width=\"554\" height=\"367\" class=\"alignnone size-full wp-image-1793 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7e2afdae.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7e2afdae.png?v=1695266786 554w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7e2afdae-300x199.png?v=1695266786 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb7e2afdae-500x331.png?v=1695266786 500w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><\/p>\n<h2>Description<\/h2>\n<p>The <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimball-physics\/\" title=\"View all posts in Kimball Physics\" target=\"_blank\">Kimball Physics<\/a> ES-423E (Extended Life) Lanthanum Hexaboride (LaB<sub>6<\/sub>) Cathode is a high performance, resistively heated, thermionic electron source. It is currently employed in many brightness-limited electron optical systems: SEM\u2019s, TEM\u2019s, probes, electron lithography systems, and more. It is based on a well-proven heater structure, which has recently been further refined with features that include improved reliability of the heater circuit, improved stability of the LaB<sub>6<\/sub>\u00a0crystal, and less exposure of LaB<sub>6<\/sub>\u00a0to reduce Wehnelt aperture contamination. Lifetimes in excess of 6 months of continuous operation are regularly achieved in commercial SEM\u2019s and TEM\u2019s with suitable gun vacuum. Continuous operation at the full operating temperature improves the thermal stability of the gun and hence beam current stability.<\/p>\n<p>Kimball Physics ES-423E\uff08\u957f\u5bff\u547d\uff09<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7\/\" title=\"View all posts in \u516d\u787c\u5316\u9567\" target=\"_blank\">\u516d\u787c\u5316\u9567<\/a>\uff08LaB6\uff09<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e9%98%b4%e6%9e%81\/\" title=\"View all posts in \u9634\u6781\" target=\"_blank\">\u9634\u6781<\/a>\u662f\u4e00\u79cd\u9ad8\u6027\u80fd\u3001\u7535\u963b\u52a0\u70ed\u7684\u70ed\u79bb\u5b50\u7535\u5b50\u6e90\u3002\u76ee\u524d\uff0c\u5b83\u88ab\u7528\u4e8e\u8bb8\u591a\u4eae\u5ea6\u53d7\u9650\u7684\u7535\u5b50\u5149\u5b66\u7cfb\u7edf\uff1aSEM\u3001TEM\u3001\u63a2\u9488\u3001\u7535\u5b50\u5149\u523b\u7cfb\u7edf\u7b49\u3002\u5b83\u57fa\u4e8e\u4e00\u79cd\u7ecf\u8fc7\u5145\u5206\u9a8c\u8bc1\u7684\u52a0\u70ed\u5668\u7ed3\u6784\uff0c\u8be5\u7ed3\u6784\u6700\u8fd1\u88ab\u8fdb\u4e00\u6b65\u6539\u8fdb\uff0c\u5176\u7279\u5f81\u5305\u62ec\u63d0\u9ad8\u52a0\u70ed\u5668\u7535\u8def\u7684\u53ef\u9760\u6027\u3001\u63d0\u9ad8LaB6\u6676\u4f53\u7684\u7a33\u5b9a\u6027\u4ee5\u53ca\u51cf\u5c11LaB6\u7684\u66b4\u9732\u4ee5\u51cf\u5c11Wehnelt\u5b54\u5f84\u6c61\u67d3\u3002\u5728\u5177\u6709\u5408\u9002\u7684\u67aa\u771f\u7a7a\u7684\u5546\u4e1aSEM\u548cTEM\u4e2d\uff0c\u8fde\u7eed\u64cd\u4f5c\u7684\u5bff\u547d\u901a\u5e38\u8d85\u8fc76\u4e2a\u6708\u3002\u5728\u5168\u64cd\u4f5c\u6e29\u5ea6\u4e0b\u7684\u8fde\u7eed\u64cd\u4f5c\u63d0\u9ad8\u4e86\u67aa\u7684\u70ed\u7a33\u5b9a\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u5c04\u675f\u7535\u6d41\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<p><strong>Applications<\/strong><\/p>\n<ul>\n<li>Scanning Electron Microscopes<\/li>\n<li>Transmission Electron Microscopes<\/li>\n<li>Electron Lithography Systems<\/li>\n<li>Electron Accelerators<\/li>\n<li>X-ray Sources<\/li>\n<li>Free Electron Lasers<\/li>\n<li>Custom Applications<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528<\/strong><\/p>\n<p>\u626b\u63cf\u7535\u5b50\u663e\u5fae\u955c<\/p>\n<p>\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c<\/p>\n<p>\u7535\u5b50\u5149\u523b\u7cfb\u7edf<\/p>\n<p>\u7535\u5b50\u52a0\u901f\u5668<\/p>\n<p>X\u5c04\u7ebf\u6e90<\/p>\n<p>\u81ea\u7531\u7535\u5b50\u6fc0\u5149\u5668<\/p>\n<p>\u81ea\u5b9a\u4e49\u5e94\u7528\u7a0b\u5e8f<\/p>\n<p><strong>Features \/ Options:<\/strong><\/p>\n<ul>\n<li>Extended Lifetime\n<ul>\n<li>Thousands of functional hours in<br \/>\nclean vacuum<\/li>\n<li>Guaranteed Against Structural<br \/>\nMounting Failure<\/li>\n<\/ul>\n<\/li>\n<li>Exceptional Stability\n<ul>\n<li>Precision machined carbon mounting<\/li>\n<li>High over-temperature tolerance<\/li>\n<\/ul>\n<\/li>\n<li>High Brightness \/ Low Energy Spread\n<ul>\n<li>&lt;100&gt; Oriented Single Crystal<\/li>\n<li>Best Quality \/ High Purity Material<\/li>\n<li>Emission current densities up to 30 A\/cm2<\/li>\n<li>Operating pressure &lt; 10-7\u00a0torr<\/li>\n<\/ul>\n<\/li>\n<li>Accurate Microflats\n<ul>\n<li>Superior Optics<\/li>\n<li>Controlled Source Size<\/li>\n<li>Standard Diameters Available<\/li>\n<li>Range of emission surface sizes<\/li>\n<li>Custom sizes available<\/li>\n<\/ul>\n<\/li>\n<li>On <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/aei\/\" title=\"View all posts in AEI\" target=\"_blank\">AEI<\/a> base, compact <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/cb-104\/\" title=\"View all posts in CB-104\" target=\"_blank\">CB-104<\/a> base or request custom mounting<\/li>\n<\/ul>\n<p><strong>\u529f\u80fd\/\u9009\u9879\uff1a<\/strong><\/p>\n<p>\u5ef6\u957f\u4f7f\u7528\u5bff\u547d<\/p>\n<p>\u5728\u6e05\u6d01\u771f\u7a7a\u4e2d\u53ef\u4ee5\u5de5\u4f5c\u6570\u5343\u4e2a\u5de5\u4f5c\u5c0f\u65f6<\/p>\n<p>\u4fdd\u8bc1\u4e0d\u4f1a\u51fa\u73b0\u7ed3\u6784\u5b89\u88c5\u6545\u969c<\/p>\n<p>\u5353\u8d8a\u7684\u7a33\u5b9a\u6027<\/p>\n<p>\u7cbe\u5bc6\u52a0\u5de5\u78b3\u652f\u5ea7<\/p>\n<p>\u9ad8\u6e29\u8010\u53d7\u6027<\/p>\n<p>\u9ad8\u4eae\u5ea6\/\u4f4e\u80fd\u91cf\u6269\u6563<\/p>\n<p>&lt;100&gt;\u5b9a\u5411\u5355\u6676<\/p>\n<p>\u6700\u4f73\u8d28\u91cf\/\u9ad8\u7eaf\u5ea6\u6750\u6599<\/p>\n<p>\u53d1\u5c04\u7535\u6d41\u5bc6\u5ea6\u9ad8\u8fbe30 A\/cm2<\/p>\n<p>\u5de5\u4f5c\u538b\u529b&lt;10-7\u6258<\/p>\n<p>\u7cbe\u786e\u7684\u5fae\u5e73\u53f0<\/p>\n<p>\u5353\u8d8a\u7684\u5149\u5b66\u6027\u80fd<\/p>\n<p>\u53d7\u63a7\u6e90\u5927\u5c0f<\/p>\n<p>\u63d0\u4f9b\u6807\u51c6\u76f4\u5f84<\/p>\n<p>\u53d1\u5c04\u8868\u9762\u5c3a\u5bf8\u8303\u56f4<\/p>\n<p>\u63d0\u4f9b\u5b9a\u5236\u5c3a\u5bf8<\/p>\n<p>\u5728AEI\u5e95\u5ea7\u4e0a\uff0c\u7d27\u51d1\u578bCB-104\u5e95\u5ea7\u6216\u8981\u6c42\u5b9a\u5236\u5b89\u88c5<\/p>\n<p id=\"ywTLBHx\"><img decoding=\"async\" loading=\"lazy\" width=\"428\" height=\"512\" class=\"alignnone size-full wp-image-1794 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbc95552d0.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbc95552d0.png?v=1695267989 428w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbc95552d0-251x300.png?v=1695267989 251w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/><\/p>\n<p id=\"sVBszyU\"><img decoding=\"async\" loading=\"lazy\" width=\"700\" height=\"578\" class=\"alignnone size-full wp-image-1795 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbca9d29e0.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbca9d29e0.png?v=1695268010 700w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbca9d29e0-300x248.png?v=1695268010 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbca9d29e0-500x413.png?v=1695268010 500w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p id=\"fkwugQx\"><img decoding=\"async\" loading=\"lazy\" width=\"722\" height=\"578\" class=\"alignnone size-full wp-image-1796 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcbae6e49.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcbae6e49.png?v=1695268027 722w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcbae6e49-300x240.png?v=1695268027 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcbae6e49-500x400.png?v=1695268027 500w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p id=\"UybmqPn\"><img decoding=\"async\" loading=\"lazy\" width=\"722\" height=\"578\" class=\"alignnone size-full wp-image-1797 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcc894105.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcc894105.png?v=1695268041 722w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcc894105-300x240.png?v=1695268041 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bbcc894105-500x400.png?v=1695268041 500w\" sizes=\"(max-width: 722px) 100vw, 722px\" \/><\/p>\n<br><div class=\"tagcloud\"><a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimball\/\" class=\"tag-cloud-link tag-link-0 tag-link-position-1\" style=\"font-size: 20.268041237113pt;\" aria-label=\"kimball (293\u4e2a\u9879\u76ee)\">kimball<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimballphysics\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-2\" style=\"font-size: 19.546391752577pt;\" aria-label=\"kimballphysics (264\u4e2a\u9879\u76ee)\">kimballphysics<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimball-physics\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-3\" style=\"font-size: 22pt;\" aria-label=\"Kimball Physics (392\u4e2a\u9879\u76ee)\">Kimball Physics<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimball-%e9%98%b4%e6%9e%81\/\" class=\"tag-cloud-link tag-link-2 tag-link-position-4\" style=\"font-size: 10.742268041237pt;\" aria-label=\"Kimball \u9634\u6781 (63\u4e2a\u9879\u76ee)\">Kimball \u9634\u6781<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e5%8d%95%e6%99%b6%e9%98%b4%e6%9e%81\/\" class=\"tag-cloud-link tag-link-4 tag-link-position-5\" style=\"font-size: 8.8659793814433pt;\" aria-label=\"\u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781 (47\u4e2a\u9879\u76ee)\">\u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e6%b0%a7%e5%8c%96%e9%92%87%e6%b6%82%e5%b1%82%e9%93%b1%e5%9c%86%e7%9b%98%e9%98%b4%e6%9e%81\/\" class=\"tag-cloud-link tag-link-5 tag-link-position-6\" style=\"font-size: 8.2886597938144pt;\" 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aria-label=\"\u9634\u6781\u9633\u6781 (41\u4e2a\u9879\u76ee)\">\u9634\u6781\u9633\u6781<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>Kimball Lanthanum Hexaboride Single Crystal Cathodes \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781 &nbsp; Description The Kimba <\/p>\n","protected":false},"author":19,"featured_media":1792,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[]},"categories":[7],"tags":[12,35,219,11,56,220,221,57,218],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kimball Lanthanum Hexaboride Single Crystal Cathodes \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781 - Kimball Physics\u91d1\u535a\u5c14\u7535\u5b50\u67aa\u79bb\u5b50\u67aa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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