R and D Multi-Pocket Sources

Telemark offers the largest selection of small R and D multi-pocket electron beam sources on the market. Pocket sizes of 2cc, 4cc and 7cc are available. Vacuum compatibility of 10-7 torr and utilizing 270⁰ beam deflection, the Telemark sources are state-of-the-art in small E-beam technology. Installation kits, source shutters and pocket indexers can be supplied. Please contact Telemark with your ebeam source requirements for model and configuration assistance.

  • 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
  • Side or bottom crucible rotation drive
  • Integral rotation feedthrough on model 246 eliminates water to vacuum seal
  • Most components are maintained in stock
  • A Source can normally be delivered in one-two weeks ARO

Improved Source Magnetics Reduce Beam Curl

Telemark Improved Source Magnetics
Telemark Improved Source Magnetics

A range of new sources have been introduced which incorporate a significant change from the traditional magnetic field design, providing a much straighter beam path through the melt material, thus increasing the usable portion of the melt inventory and producing a more uniform and predictable evaporant cloud. These sources can be supplied with the optional Arc-Suppression or self-sealing cover plate.

Model 221/224Model 244/246
E-Beam Deflection270°270°
Power Rating3 kW(221), 4 kW(224)*6 kW*
High Voltage Range-5 kV to -7 kV-6 kV to -10 kV
Lateral Coil Resistance8.5 ohms (224)8.5 ohms
Long. Coil Resistance7.5 ohms (224)7.5 ohms
Water Requirements2 gpm(min.)@ 60°F2 gpm(min.)@ 60°F

*Nominal value; actual power rating may vary, depending on customer’s process.

Model 221Model 224Model 244/246
4 x 2cc221-05 / 221-06
4 x 4cc224-63 / 224-64-63 / -64
4 x 7cc-27 / -28
Side / BottomSide / BottomSide / Bottom

Telemark Feedthroughs

Telemark HV Feedthrough Cover
HV Feedthrough Cover

Telemark Crucible Indexer Controller
Crucible Indexer Controller

Telemark Water Flow Switch
Water Flow Switch

Telemark E-Beam Shutter
E-Beam Shutter

Electro-Pneumatic shutter controls are available with 1″, 32mm, or 2-3/4″ CFF feedthrough shutter assemblies.