# Circular filament electron thermal evaporator 

> Original page (HTML): https://vaclab.ru/devices/ring-cathode-evaporator
> Markdown version: https://vaclab.ru/devices/ring-cathode-evaporator.md
> Manufacturer: LLC "Laboratory of Vacuum Technologies Plus" (LVT), vaclab.ru

Thermal evaporator is designed for evaporation of different materials from a crucible made of a refractory metal. The crucible is heated by electron flow coming from a ring-shaped filament around it. 

The volume of
the crucible is 17 cm3.

- temperature - no more than 40 °C;

- the content of suspended particles - no more than 0.5 mg /l;

- oxidizability - no more than 10 mg/l O2 ;

- pressure - no more than 0.5 MPa.

## Technical specifications

- Maximal beam current: 1.0 A
- Anode voltage range: 1.5..3.0 kV
- Type: Electron beam evaporator with ring cathode
- Cathode material: Tungsten
- Nominal power: 2.0 kW
- Maximal power: 3.0 kW
- Weight, kg: 5.2 kg
- Coolant: Distilled water, 20% ethanol solution in distilled water according to
GOST 6709-72
*The use of other types of coolants is allowed upon agreement with the manufacturer.
- Minimum coolant consumption, l/min: 1.0
- Crucible Size: D32x35 mm, 17 cm?
