product breakdown
Crucible-less Sources
For customers wishing to supply the crucible as part of their custom electron beam source (egun) mechanical assembly, the crucible-less sources offers a compact, cost-effective solution. End users can expect long filament life from these versatile sources, which can be supplied with optional arc-suppression.

Brochures
Manuals
detailed information
- 270° beam deflection (Hidden Filament)
- Proprietary, patented water cooling design means longer crucible life and more consistent evaporation of material
- Rugged, reliable construction
- Designed for ease of use and maintainability
- Permanent magnet for primary beam positioning to provide improved control of evaporation process
- Durable emitter assembly with unique design for increased filament life and simple maintenance
- Plug-in emitter assembly for easy filament replacement
- Most components are maintained in stock
- A Source can normally be delivered in one-two weeks ARO
Model 263 | Model 293 | |
---|---|---|
E-Beam Deflection | 270° | 270° |
Power Rating | 10 kW* | 20 kW* |
High Voltage Range | -6 kV to -10 kV | -6 kV to -10 kV |
Lateral Coil Resistance | 3.0 ohms | 3.0 ohms |
Long. Coil Resistance | 9.6 ohms | 9.6 ohms |
Water Requirements | 3 gpm(min.)@ 60°F | 5 gpm(min.)@ 60°F |
Model 263 | Model 293 | |
---|---|---|
10 kW | 263-01 | |
20 kW | 293-01 |
Arc Free Upgrade

A source with the Arc Free is ideal for many applications, such as for optical coating and for ion plating without a pressure barrier. The reduction in arcing results in improved film quality, improved yields, and fewer arc-related maintenance issues.
contact the Telemark sales team
Oops! We could not locate your form.
Telemark's sales team will answer your questions—
Upon completing the form, a member of our team will reach out via email to answer your questions about our products.