六硼化镧灯丝LaB6 Cathodes – Denka 海德创业（北京）生物科技有限公司

简单介绍

标准Denka M-3型六硼化镧灯丝Standard Denka Model 3 LaB6 Cathodes，在SEM、TEM、X-Ray、Electron Beam Lithography等领域应用，六硼化镧都是*佳的阴极材料。

产品描述

标准Denka M-3型六硼化镧灯丝Standard Denka Model 3 LaB₆ Cathodes，在SEM、TEM、X-Ray、Electron Beam Lithography等领域应用，六硼化镧都是*佳的阴极材料。

特征：

型号：

1、标准（圆形）尖Standard (Round) Tips

90°圆锥体，半径15u圆尖

2、平（截去顶端）尖Flat (Truncated) Tips

平尖是优先选择的，稳定性和使用寿命是我们的主要考虑因素，亮度有时需要做出一点牺牲。

3、尖尖Sharp Tips

当需要很高的初始亮度而使用寿命暂不考虑时，尖尖就是*佳选择。它有2种规格可选。

60° Cone Angle

5µ radius

10µ radius

	Flat Tip	Standard (round) Tip	Sharp Tip
Brightness	About 5 times that of tungsten, 2-5x105 A/cm2· Str	About 10 times that of tungsten, 1x106 A/cm2· Str	Twice as bright as standard tips 2x106 A/cm2· Str
Saturation	Mono spot at about 1,400°C	Mono spot at about 1,500°C.	Almost the same as standard tips
Crossover	Large (11-13µ)	Small (7-10µ)	Small (7-10µ)
Angular distribution	Broad, 3.3-4.2x10-2 rad	Sharp1.6 x10-2 rad	Sharp1.6 x10-2 rad
Used Temperature	Low temperature	Low temperature	High temperature.
Lifetime	Long life; usable at low temperatures and crystallized end changes slowly.	Long life but shorter than flat tips.	Short
Operation	Easy; thanks to its large spot size and broad adjusting range.	Not so difficult.	Difficult; Point adjustment needed!
Stability	High; vulnerable to thermal expansion or vibration.	High	Middle;. Vulnerable to the thermal expansion or vibration. Adjustment is sometimes necessary.
Technology Needed	Ordinary	High	Very high

订购:（更多具体型号参数请来电来信咨询hedebio@163.com）

货号	产品	规格
80900	Denka M-3 LaB₆ Standard for JEOL	个
80902	Denka M-3 LaB₆ Standard for Philips	个
80904	Denka M-3 LaB₆ Standard for AMRAY	个
80906	Denka M-3 LaB₆ Standard for Cambridge	个
80908	Denka M-3 LaB₆ Standard for Hitachi 90-15	个
80910	Denka M-3 LaB₆ Standard for ISI SEM	个
80912	Denka M-3 LaB₆ Standard for ISI TEM	个

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