{"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":"

Kimball Lanthanum Hexaboride Single Crystal Cathodes \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781<\/a><\/p>\n

Description<\/h2>\n
The Kimball Physics<\/a> ES-423E (Extended Life) Lanthanum Hexaboride (LaB_{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_{6<\/sub>\u00a0crystal, and less exposure of LaB_{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}}}
Kimball Physics ES-423E\uff08\u957f\u5bff\u547d\uff09 \u516d\u787c\u5316\u9567<\/a>\uff08LaB6\uff09 \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
Applications<\/strong><\/p>\n
\n
Scanning Electron Microscopes<\/li>\n
Transmission Electron Microscopes<\/li>\n
Electron Lithography Systems<\/li>\n
Electron Accelerators<\/li>\n
X-ray Sources<\/li>\n
Free Electron Lasers<\/li>\n
Custom Applications<\/li>\n<\/ul>\n
\u5e94\u7528<\/strong><\/p>\n
\u626b\u63cf\u7535\u5b50\u663e\u5fae\u955c<\/p>\n
\u900f\u5c04\u7535\u5b50\u663e\u5fae\u955c<\/p>\n
\u7535\u5b50\u5149\u523b\u7cfb\u7edf<\/p>\n
\u7535\u5b50\u52a0\u901f\u5668<\/p>\n
X\u5c04\u7ebf\u6e90<\/p>\n
\u81ea\u7531\u7535\u5b50\u6fc0\u5149\u5668<\/p>\n
\u81ea\u5b9a\u4e49\u5e94\u7528\u7a0b\u5e8f<\/p>\n
Features \/ Options:<\/strong><\/p>\n
\n
Extended Lifetime\n
\n
Thousands of functional hours in
\nclean vacuum<\/li>\n
Guaranteed Against Structural
\nMounting Failure<\/li>\n<\/ul>\n<\/li>\n
Exceptional Stability\n
\n
Precision machined carbon mounting<\/li>\n
High over-temperature tolerance<\/li>\n<\/ul>\n<\/li>\n
High Brightness \/ Low Energy Spread\n
\n
<100> Oriented Single Crystal<\/li>\n
Best Quality \/ High Purity Material<\/li>\n
Emission current densities up to 30 A\/cm2<\/li>\n
Operating pressure < 10-7\u00a0torr<\/li>\n<\/ul>\n<\/li>\n
Accurate Microflats\n
\n
Superior Optics<\/li>\n
Controlled Source Size<\/li>\n
Standard Diameters Available<\/li>\n
Range of emission surface sizes<\/li>\n
Custom sizes available<\/li>\n<\/ul>\n<\/li>\n
On AEI<\/a> base, compact CB-104<\/a> base or request custom mounting<\/li>\n<\/ul>\n
\u529f\u80fd\/\u9009\u9879\uff1a<\/strong><\/p>\n
\u5ef6\u957f\u4f7f\u7528\u5bff\u547d<\/p>\n
\u5728\u6e05\u6d01\u771f\u7a7a\u4e2d\u53ef\u4ee5\u5de5\u4f5c\u6570\u5343\u4e2a\u5de5\u4f5c\u5c0f\u65f6<\/p>\n
\u4fdd\u8bc1\u4e0d\u4f1a\u51fa\u73b0\u7ed3\u6784\u5b89\u88c5\u6545\u969c<\/p>\n
\u5353\u8d8a\u7684\u7a33\u5b9a\u6027<\/p>\n
\u7cbe\u5bc6\u52a0\u5de5\u78b3\u652f\u5ea7<\/p>\n
\u9ad8\u6e29\u8010\u53d7\u6027<\/p>\n
\u9ad8\u4eae\u5ea6\/\u4f4e\u80fd\u91cf\u6269\u6563<\/p>\n
<100>\u5b9a\u5411\u5355\u6676<\/p>\n
\u6700\u4f73\u8d28\u91cf\/\u9ad8\u7eaf\u5ea6\u6750\u6599<\/p>\n
\u53d1\u5c04\u7535\u6d41\u5bc6\u5ea6\u9ad8\u8fbe30 A\/cm2<\/p>\n
\u5de5\u4f5c\u538b\u529b<10-7\u6258<\/p>\n
\u7cbe\u786e\u7684\u5fae\u5e73\u53f0<\/p>\n
\u5353\u8d8a\u7684\u5149\u5b66\u6027\u80fd<\/p>\n
\u53d7\u63a7\u6e90\u5927\u5c0f<\/p>\n
\u63d0\u4f9b\u6807\u51c6\u76f4\u5f84<\/p>\n
\u53d1\u5c04\u8868\u9762\u5c3a\u5bf8\u8303\u56f4<\/p>\n
\u63d0\u4f9b\u5b9a\u5236\u5c3a\u5bf8<\/p>\n
\u5728AEI\u5e95\u5ea7\u4e0a\uff0c\u7d27\u51d1\u578bCB-104\u5e95\u5ea7\u6216\u8981\u6c42\u5b9a\u5236\u5b89\u88c5<\/p>\n
$\"\"$ <\/p>\n
$\"\"$ <\/p>\n
<\/p>\n
$\"\"$ <\/p>\n
<\/p>\n
$\"\"$ <\/p>\n
kimball<\/a>\n kimballphysics<\/a>\n Kimball Physics<\/a>\n Kimball \u9634\u6781<\/a>\n \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781<\/a>\n \u6c27\u5316\u9487\u6d82\u5c42\u94f1\u5706\u76d8\u9634\u6781<\/a>\n \u6c27\u5316\u94a1\u6d82\u5c42\u5706\u76d8\u9634\u6781<\/a>\n \u9634\u6781<\/a>\n \u9634\u6781\u9633\u6781<\/a><\/div>","protected":false},"excerpt":{"rendered":"
Kimball Lanthanum Hexaboride Single Crystal Cathodes \u516d\u787c\u5316\u9567\u5355\u6676\u9634\u6781 Description The Kimba <\/p>\n","protected":false},"author":19,"featured_media":1792,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[12,35,219,11,56,220,221,57,218],"_links":{"self":[{"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/posts\/1791"}],"collection":[{"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/comments?post=1791"}],"version-history":[{"count":1,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/posts\/1791\/revisions"}],"predecessor-version":[{"id":1798,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/posts\/1791\/revisions\/1798"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/media\/1792"}],"wp:attachment":[{"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/media?parent=1791"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/categories?post=1791"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bihec.com\/kimballphysics\/wp-json\/wp\/v2\/tags?post=1791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}