CARBON AND METAL EVAPORATOR K950X

K950X Carbon Turbo Evaporator for SEM, TEM & x-Ray Applications

The K950X High Vacuum Carbon Evaporator will give continuous carbon films using carbon rod evaporation, and with contamination-free turbomolecular pumping. It can be used for support films and replicas in TEM and X-Ray analysis, and conducting coatings for SEM.

The films are continuous for thickness of 2nm (20 Angstroms) or more and are free of significant structure.

The most common form of deposition is from resistance heated carbon rods spectrographically pure. The rods are shaped to achieve high current density with sufficient temperature to cause evaporation. At this point the appearance being that of small, bright, glowing particles of carbon. To achieve the required vacuum condition of 1x10^-4 mbar, requires the use of Diffusion or Turbo Molecular Pumps.

The K950X comes with a Turbo Pump fitted as standard, and is backed by a Rotary Vacuum Pump, the complete sequence being under fully automatic control and the vacuum better than 1x10^-5 mbar. A variable control is available to pre-heat and outgas the rods, whilst the use of an instantaneous evaporate switch allows burst evaporation under user control.

The Standard Rotary Specimen Table has adjustable tilt, and can facilitate a range of specimen stubs. An Optional Stage has a special recess to locate standard glass slides, specifically beneficial for 'asbestos analysis' methods requiring carbon coatings.

The unit comes complete with a Carbon Rod Head fitted as standard. This is a 'Quick Release Head' to enable user friendly fitting of any of the Optional Metal Evaporation, Carbon Fibre and Aperture Cleaning Heads.

The normal venting is by restriction to avoid specimen disturbance with the system being fully interlocked.

The Turbo pump can be mounted on any axis, and can 'shutdown' safely to atmosphere.

Specifications of the K950X Carbon Evaporator

• Instrument Case: 450mm W x 350mm D x 175mm H (Overall height with Work Chamber 750mm)
• Work Chamber: Borosilicate Glass Overall Sizes 165mm D x 125mm H.
• Safety Shield: Polycarbonate
• Aluminium Base: 110mm Dia x 115mm H
• Weight: 28Kg
• Carbon Source: 3.2mm Dia. Rods
• Rotating Stage: 60mm Dia. Adjustable Tilt 0-90^o Spacing to electrodes 130mm.
• Vacuum Gauge: ATM - 1 x 10^-2 mbar
• Operating Vacuum: 1x10^-2 to 1x10^-5 mbar
• Ammeter Gauge: 0 - 50 Amps
• Low Voltage Select: 0-5V-15V-25V
• Outgas Current: 0 - 25 Amps
• Turbomolecular Pump: 50L/Second
• Services
• Argon: Nominal 4psi.
• Rotary Backing Pump: Two Stage Vacuum Pump No. 2, 35L/Min complete with Vacuum Hose & Oil Mist Filter. 2m3/Hr
• Electrical Supply: 230V 50Hz (8 Amp max. including Pump)

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