174H灯丝电子显微镜用光源
DENKA
24V
14720.0
企业名:上海闻企电子科技有限公司
类型:经销商
电话: 02151035787
手机:13764678882
联系人:钱先生/纪小姐/江先生/王小姐
邮箱:isd99@163.com
地址:上海上海市黄浦区北京东路668号科技京城3楼A312室
∟ 逻辑IC(1)
The YPS Schottky type thermal field emission sources are an excellent choice to replace used TFE sources in electron beam systems, including FESEM, SFEG-SEM, FETEM, EPMA, Auger and CD-SEM systems. The YPS sources are drop-in replacements for existing FEI and Denka style sources also known as 184 and 174 type suppressors. The YPS Schottky TFE source consists of a single crystal (100) tungsten wire with a very sharp tip including a zirconium reservoir around the tungsten tip wire. The tip is mounted on a hairpin filament which is used to maintain the tip ate a temperature of around 1800K. This assembly is mounted in a cylindrical suppressor electrode with an aperture through which the sharp tip protrudes. Electrons are emitted from the tip due to both thermal excitation and the electrical field at the tip. The YPS Schottky TFE source tip typically has a radius of 0.3μm and protrudes around 250μm to ensure high brightness of the source
企业名:上海闻企电子科技有限公司
类型:经销商
电话: 02151035787
手机:13764678882
联系人:钱先生/纪小姐/江先生/王小姐
邮箱:isd99@163.com
地址:上海上海市黄浦区北京东路668号科技京城3楼A312室