Low Temperature Effusion Cell LTC
The low temperature effusion cell is specially designed to evaporate materials with a high vapour pressure such as arsenic, antimony, selenium, zink, etc. The evaporation temperature for these elements is below 800°C. In addition crucibles with large capacity allow maximum uptime. Highest stability of the molecular beam flux is achieved by a special design of the heating system.
Technical Data:
Type | LTC |
Heating system | Radiation heating, tantalum wires with PBN insulators |
Temperature range | 50°C … 800°C |
Temperature stability | ≤0.1°C depending on the PID controller |
Max. outgas temp. | 1400°C without crucible, 800°C …1200°C depending on the crucible |
Max. power | 220W (NW 40 CF) |
Max. current | 8A |
Bakeout temperature | 250°C |
Conditioning | Heated to maximum temperature with and without crucible |
Shipping | Stainless steel container with valve under dry Nitrogen |
Standards:
Flange size | CF40 / CF63 / CF100 or specified |
Max outer diameter | 38mm / 61mm / 97mm or specified |
Length | 283.5 mm or specified |
Thermocouple | Type C or specified |
Crucible material | PBN / PGR / W / Ta / Mo / quartz |
Crucible capacity | All standard sizes or specified |
Options:
- Hot-lip filament to avoid condensation at the crucible orifice (especially for elements like Sb, Pb, etc.)
- Molybdenum version
- Downward looking version
- Integrated shutter
- Water cooling unit
Available Downloads:
