Tungsten SEM Filaments

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Tungsten Filaments

Overview

Rave Scientific offers SEM tungsten filaments for all major brands of scanning and transmission electron microscopes. These high quality, high stability tungsten EM filaments, also called cathodes or electron emitters, are manufactured to exceed the specifications of the original equipment manufacturers. These superior cathodes are made using high quality ceramic discs, exact size contact pins and high grade tungsten filament wire. Special tools are used to produce the correct shape of the tungsten filament. All EBS tungsten filaments are precisely aligned and annealed in high vacuum to reduce stress in the filament. This will guarantee optimum stability, maximum brightness, longer lifetime and overall lower running costs.

Exclusive features of the EBS tungsten EM filaments are:

Minimum tip radius for coherent beam
Rigid attachment of filament wire to post to increase stability
Fully stress relieved for enhanced cathode lifetime

Tungsten Filament Selection Table

My µ Scope	Product number	Ceramic Disc mm	Pin Diameter mm	Pin Pitch mm
AmRay /AMR (except 1200 series)	RS-EBS-AR-AMRE-N-10	26.0	1.0	5.0
Cambridge Instruments (except S4-10)	RS-EBS-VS-AE-N-10	12.0	1.0	6.45
CamScan with AEI conversion	RS-EBS-VS-AE-N-10	12.0	1.0	6.45
CamScan with new Tescan Column	RS-EBS-VL-TE-N-10	19.8	1.0	5.0
SEC	RS-EBS-CL-ISIE/2-N-10	23.4	1.2	12.0
FEI	RS-EBS-VL-PE-N-10	26.0	1.0	5.0
Hitachi S-Type	RS-EBS-VL-HO-N-10	9.8	1.2	2.7
Hitachi with Cartridge TM series tabletop 3400N, 3700N, SU1500, SU3500	RS-EBS-VL-HOC-N-10	9.8	1.2	2.7
ISI /ABT / Topcon 2-Pin	RS-EBS-CL-ISIE/2-N-10	23.4	1.2	12.0
JEOL K-Type with metal ring	RS-EBS-CL-JE-N-6	28.0	1.2	8.0
Leica	RS-EBS-VS-AE-N-10	12.0	1.0	6.45
LEO 400 and 1400 Series SEM	RS-EBS-VS-AE-N-10	12.0	1.0	6.45
LEO1450 (except AEI conversions)	RS-EBS-VL-ZE-N-10	19.8	1.0	5.0
LEO TEM	RS-EBS-VL-ZE-N-10	19.8	1.0	5.0
Coxem	RS-EBS-CL-ISIE/2-N-10	23.4	1.2	12.0
Philips V-Loop (PSEM500/EM200 and later)	RS-EBS-VL-PE-N-10	26.0	1.0	5.0
Tescan	RS-EBS-VL-TE-N-10	19.8	1.0	5.0
ZEISS DSM and TEM	RS-EBS-VL-ZE-N-10	19.8	1.0	5.0
ZEISS EVO	RS-EBS-VS-AE-N-10	12.0	1.0	6.45