LaB6 单晶是一种特殊结构的晶体，它具有金属的良好导电性且逸出功低，工作在1400～1680℃时，可以获得0～100A/cm2 的直流发射电流，远胜于氧化物及纯金属阴极。
Kimball Physics公司（简称KPI公司）生产的六硼化镧阴极特征如下：
l 更长的寿命：洁净真空中上千小时的寿命
l 超常的稳定性能：耐热、化学、电、碳镀、高温等等
l 高亮度，低能耗：单晶LaB6,高品质-高纯度
Model ES-423E,单晶被加工成90°或者60°椎体，再根据微面分为15um、6um、20um平面等几种。
常见不同品牌的电镜的灯丝基座尺寸Dimensions for EM Filament Bases：
|
Base Type |
Diameter of Ceramic disc in mm |
Diameter of Pins in mm |
Center Distance of Pins |
|
AEI |
12.0 |
1.0 |
6.45 |
|
FEI/PHILIPS |
26.0 |
1.0 |
5.0 |
|
JEOL K-type |
28.0 |
1.2 |
8.0 |
|
HITACHI S-type |
9.8 |
1.2 |
2.7 |
|
ZEISS (DSM & TEM) |
19.8 |
1.0 |
5.0 |
|
AMRAY (except 1200) |
26.1 |
1.0 |
5.0 |
|
ISI/ABT/TOPCON |
23.3 |
1.2 |
11.9 |
|
ISI/ABT/TOPCON |
23.4 |
1.2 |
12.0 |
订购信息：
|
货号 |
产品名称 |
|
Kimball ES423E-90/15 standard LaB6 tip with 90° cone and 15µm microflat; perfect for SEM/TEM applications |
|
|
1440-110 |
LaB6 Cathode, C423E-90/15, with AEI base for Cambridge Instruments/Leica/LEO/ZEISS EVO, Cameca, CamScan and Electroscan |
|
1440-112 |
LaB6 Cathode, A423E-90/15, for Amray |
|
1440-114 |
LaB6 Cathode, P423E-90/15, for FEI/Philips except smaller AEI style on XL30 SEM |
|
1440-116 |
LaB6 Cathode, Z423E-90/15, for ZEISS/LEO TEMs, ZEISS DSM SEMs, or Tescan SEMs |
|
1440-118 |
LaB6 Cathode, HL423E-90/15, for Hitachi HU base |
|
1440-119 |
LaB6 Cathode, H423E-90/15, for Hitachi S base |
|
1440-122 |
LaB6 Cathode, J423E-90/15, for JEOL K base |
|
1440-126 |
LaB6 Cathode, I423E-90/15, for ISI/ABT/Topcon 2 pin |
|
1440-130 |
LaB6 Cathode, E423E-90/15, for ETEC/Perkin Elmer |
|
1440-134 |
LaB6 Cathode, S423E-90/15, for Siemens base |
|
1440-136 |
LaB6 Cathode, G423E-90/15, for VG |
|
Kimball ES423E-90/20 long life time, high stability tip with 90° cone and 20µm microflat; mainly for analytical SEM/micro probe applications |
|
|
1440-210 |
LaB6 Cathode, C423E-90/20, with AEI base for Cambridge Instruments/Leica/LEO/ZEISS EVO, Cameca, CamScan and Electroscan |
|
1440-212 |
LaB6 Cathode, A423E-90/20, for Amray |
|
1440-214 |
LaB6 Cathode, P423E-90/20, for FEI/Philips except smaller AEI style on XL30 SEM |
|
1440-216 |
LaB6 Cathode, Z423E-90/20, for ZEISS DSM SEMs or Tescan SEMs |
|
1440-219 |
LaB6 Cathode, H423E-90/20, for Hitachi S base |
|
1440-222 |
LaB6 Cathode, J423E-90/20, for JEOL K base |
|
1440-226 |
LaB6 Cathode, I423E-90/20, for ISI/ABT/Topcon 2 pin |
|
1440-230 |
LaB6 Cathode, E423E-90/20, for ETEC/Perkin Elmer |
|
1440-234 |
LaB6 Cathode, S423E-90/20, for Siemens base |
|
1440-236 |
LaB6 Cathode, G423E-90/20, for VG |
|
1440-310 |
LaB6 Cathode, C423E-60/6, with AEI base |
|
1440-314 |
LaB6 Cathode, P423E-60/6, for FEI/Philips (except smaller AEI style on XL30 SEM) |
|
1440-316 |
LaB6 Cathode, Z423E-60/6, for ZEISS/LEO TEMs or Tescan SEMs |
|
1440-318 |
LaB6 Cathode, HL423E-60/6, for Hitachi HU base |
|
Kimball ES423E-60/6 high resolution/high brightness tip with 60° cone and 6µm microflat; for use in TEMs (rarely used for SEMs) |
|
|
1440-319 |
LaB6 Cathode, H423E-60/6, for Hitachi S base |
|
1440-322 |
LaB6 Cathode, J423E-60/6, for JEOL K base |
|
1440-326 |
LaB6 Cathode, I423E-60/6, for ISI/ABT/Topcon 2 pin |
|
1440-334 |
LaB6 Cathode, S423E-60/6, for Siemens base |
|
1440-336 |
LaB6 Cathode, G423E-60/6, for VG |
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