Rave Scientific
Nanotechnology Instrument Providers and Consultants
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Tungsten SEM 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) |
26.0 |
1.0 |
5.0 |
|
| Cambridge Instruments (except S4-10) | 12.0 | 1.0 | 6.45 | |
| CamScan with AEI conversion | 12.0 | 1.0 | 6.45 | |
| CamScan with new Tescan Column | 19.8 | 1.0 | 5.0 | |
| SEC | 23.4 | 1.2 | 12.0 | |
| FEI | 26.0 | 1.0 | 5.0 | |
| Hitachi S-Type | 9.8 | 1.2 | 2.7 | |
| Hitachi with Cartridge TM series tabletop 3400N, 3700N, SU1500, SU3500 |
9.8 | 1.2 | 2.7 | |
| ISI /ABT / Topcon 2-Pin | 23.4 | 1.2 | 12.0 | |
| JEOL K-Type with metal ring | 28.0 | 1.2 | 8.0 | |
| Leica | 12.0 | 1.0 | 6.45 | |
| LEO 400 and 1400 Series SEM | 12.0 | 1.0 | 6.45 | |
| LEO1450 (except AEI conversions) | 19.8 | 1.0 | 5.0 | |
| LEO TEM | 19.8 | 1.0 | 5.0 | |
| Coxem | 23.4 | 1.2 | 12.0 | |
| Philips V-Loop (PSEM500/EM200 and later) | 26.0 | 1.0 | 5.0 | |
| Tescan | 19.8 | 1.0 | 5.0 | |
| ZEISS DSM and TEM | 19.8 | 1.0 | 5.0 | |
| ZEISS EVO | 12.0 | 1.0 | 6.45 |
Product #
Price
$395.00 each
Filaments for all ZEISS EVO, Cambridge-Leica and LEO Scanning Electron Microscopes.
Unit: Box/10
Product #
Price
$520.00 each
Filaments for Hitachi S-Type Base Tungsten Filaments
Unit:Box/10
Product #
Price
$475.00 each
Filaments for JEOL K-Type Base Tungsten Filaments with Metal Ring
Unit:Box/6
Product #
Price
$505.00 each
Filaments for SEC and Pemtron Scanning Electron Microscopes
Unit: Box/10
Product #
Price
$435.00 each
Filaments for FEI-Philips Base Scanning Electron Microscopes
Unit: Box/10
Product #
Price
$395.00 each
Filaments for all ZEISS EVO, Cambridge-Leica and LEO Scanning Electron Microscopes. This filament is for Zeiss EVO later than 2019. The tungsten wire is 6 mill thick
Unit: Box/10
Product #
Price
$550.00 each
ZEISS Base Tungsten Filaments for ZEISS DSM SEMs/ZEISS TEMs and LEO 400/1400 series SEMs/LEO TEMs
Unit:Box/10