{"id":1864,"date":"2024-04-25T16:23:27","date_gmt":"2024-04-25T08:23:27","guid":{"rendered":"https:\/\/www.bihec.com\/kimballphysics\/?p=1864"},"modified":"2024-04-25T16:23:27","modified_gmt":"2024-04-25T08:23:27","slug":"kimball-lanthanum-hexaboride-cathodes-for-electron-microscopes-%e7%94%b5%e5%ad%90%e6%98%be%e5%be%ae%e9%95%9c%e7%94%a8%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e9%98%b4%e6%9e%81-2","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/kimballphysics\/kimball-lanthanum-hexaboride-cathodes-for-electron-microscopes-%e7%94%b5%e5%ad%90%e6%98%be%e5%be%ae%e9%95%9c%e7%94%a8%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e9%98%b4%e6%9e%81-2\/","title":{"rendered":"Kimball Lanthanum Hexaboride Cathodes for Electron Microscopes \u7535\u5b50\u663e\u5fae\u955c\u7528\u516d\u787c\u5316\u9567\u9634\u6781"},"content":{"rendered":"<p>Kimball Lanthanum Hexaboride Cathodes for Electron Microscopes <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/%e7%94%b5%e5%ad%90%e6%98%be%e5%be%ae%e9%95%9c%e7%94%a8%e5%85%ad%e7%a1%bc%e5%8c%96%e9%95%a7%e9%98%b4%e6%9e%81\/\" title=\"View all posts in \u7535\u5b50\u663e\u5fae\u955c\u7528\u516d\u787c\u5316\u9567\u9634\u6781\" target=\"_blank\">\u7535\u5b50\u663e\u5fae\u955c\u7528\u516d\u787c\u5316\u9567\u9634\u6781<\/a><\/p>\n<p>&nbsp;<\/p>\n<p id=\"jgYECYv\"><img loading=\"lazy\" class=\"alignnone wp-image-1787 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb50cbb43f.png\" alt=\"\" width=\"409\" height=\"326\" \/><\/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:\u00a0 SEM\u2019s, TEM\u2019s, probes, electron lithography systems, and more. With brightness at least an order of magnitude greater than tungsten, LaB<sub>6<\/sub>\u00a0provides superior resolution in a wide range of acceleration voltages to enable clear imaging of the finest details in electron microscopy applications.<\/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\u3002LaB6\u7684\u4eae\u5ea6\u81f3\u5c11\u6bd4\u94a8\u5927\u4e00\u4e2a\u6570\u91cf\u7ea7\uff0c\u5728\u5bbd\u8303\u56f4\u7684\u52a0\u901f\u7535\u538b\u4e0b\u63d0\u4f9b\u4e86\u5353\u8d8a\u7684\u5206\u8fa8\u7387\uff0c\u4ece\u800c\u80fd\u591f\u5728\u7535\u5b50\u663e\u5fae\u955c\u5e94\u7528\u4e2d\u5bf9\u6700\u7cbe\u7ec6\u7684\u7ec6\u8282\u8fdb\u884c\u6e05\u6670\u7684\u6210\u50cf\u3002<\/p>\n<p><strong>FOR USE IN:<\/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 Probe Microanalysis<\/li>\n<li>X-ray Micro-Analysis<\/li>\n<li>Surface Analysis<\/li>\n<li>Custom Applications<\/li>\n<\/ul>\n<p>\u5e94\u7528\uff1a<\/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\u63a2\u9488\u5fae\u91cf\u5206\u6790<\/p>\n<p>X\u5c04\u7ebf\u663e\u5fae\u5206\u6790<\/p>\n<p>\u66f2\u9762\u5206\u6790<\/p>\n<p>\u81ea\u5b9a\u4e49\u5e94\u7528\u7a0b\u5e8f<\/p>\n<p>&nbsp;<\/p>\n<p><strong>FEATURES \/ OPTIONS:<\/strong><\/p>\n<ul>\n<li>Extended Lifetime\n<ul>\n<li>Thousands of functional hours in clean vacuum<\/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>Current densities up to 30 A\/cm<sup>2<\/sup><\/li>\n<li>Operating pressure &lt; 10<sup>-7<\/sup>\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<\/ul>\n<\/li>\n<li>Bases Available for Most Systems\n<ul>\n<li>Ceramic <a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/aei\/\" title=\"View all posts in AEI\" target=\"_blank\">AEI<\/a> base or various microscope bases<\/li>\n<li>Emission surfaces sized\u00a0 for microscope use<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5ef6\u957f\u4f7f\u7528\u5bff\u547d<\/p>\n<p>\u5728\u5e72\u51c0\u7684\u771f\u7a7a\u4e2d\u5de5\u4f5c\u6570\u5343\u5c0f\u65f6<\/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>\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>\u9002\u7528\u4e8e\u5927\u591a\u6570\u7cfb\u7edf\u7684\u5e95\u5ea7<\/p>\n<p>\u9676\u74f7AEI\u5e95\u5ea7\u6216\u5404\u79cd\u663e\u5fae\u955c\u5e95\u5ea7<\/p>\n<p>\u53d1\u5c04\u8868\u9762\u5c3a\u5bf8\u9002\u5408\u663e\u5fae\u955c\u4f7f\u7528<\/p>\n<p>&nbsp;<\/p>\n<p id=\"AdoBAQT\"><img loading=\"lazy\" width=\"1572\" height=\"1324\" class=\"alignnone size-full wp-image-1788 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4.png?v=1695266277 1572w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-300x253.png?v=1695266277 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-1024x862.png?v=1695266277 1024w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-768x647.png?v=1695266277 768w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-1536x1294.png?v=1695266277 1536w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-500x421.png?v=1695266277 500w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-800x674.png?v=1695266277 800w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb5e2df3b4-1280x1078.png?v=1695266277 1280w\" sizes=\"(max-width: 1572px) 100vw, 1572px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p id=\"RTjpnEj\"><img loading=\"lazy\" width=\"1292\" height=\"1120\" class=\"alignnone size-full wp-image-1789 \" src=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b.png\" alt=\"\" srcset=\"https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b.png?v=1695266320 1292w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-300x260.png?v=1695266320 300w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-1024x888.png?v=1695266320 1024w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-768x666.png?v=1695266320 768w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-500x433.png?v=1695266320 500w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-800x693.png?v=1695266320 800w, https:\/\/www.bihec.com\/kimballphysics\/wp-content\/uploads\/sites\/10\/2023\/09\/img_650bb60e4745b-1280x1110.png?v=1695266320 1280w\" sizes=\"(max-width: 1292px) 100vw, 1292px\" \/><\/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: 21.274611398964pt;\" aria-label=\"kimball (267\u4e2a\u9879\u76ee)\">kimball<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimball-physics\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-2\" style=\"font-size: 22pt;\" aria-label=\"Kimball Physics (335\u4e2a\u9879\u76ee)\">Kimball Physics<\/a>\n<a href=\"https:\/\/www.bihec.com\/kimballphysics\/tag\/kimballphysics\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-3\" style=\"font-size: 20.911917098446pt;\" 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