X-ray Vacuum Oven

This easy to operate ultra high vacuum x-ray oven provides convenient sample mounting. The system comes with a heating base, power supply, turbo pump, and beryllium dome. The oven can be mounted on an ADC R115 rotation stage (or Huber 410) standard base. The oven is provided with a detachable sample mount with a flat circular surface 25 mm in diameter onto which the user may cement samples. This surface is 2±1 mm below the height of the center of the beryllium dome.

Feedthroughs provide for vacuum, gas inlet, heater power, and 2 thermocouples. The vacuum feedthrough is 18 mm in diameter for high conductance. The ovens operates over the range of room temperature to 900°C or 1500°C , with a uniformity of 2°C and 5°C over the sample-mounting surface respectively. A power supply is provided to control of this temperature. This power supply is controllable with a 0-10 volt DC signal and operates from a 115-Volt, 20 Amp, 60 Hz receptacle.

The sample mount maintains a fixed position (to within 0.01 mm) and orientation (to within 8 arc seconds) with respect to the Huber 410 mount as the sample temperature is varied from room temperature to 9508C and as the oven is rotated through all orientations; that is, it does not sag under its own weight beyond the specified tolerances. The temperature is measured by attaching thermocouples to the center and circumference of the 25 mm diameter sample-mounting surface. A Z-translation system is incorporated in order to move the sample for fine-tuning. It has a +/- 2 mm range.

Publication: 8th International Conference on Synchrotron Radiation Instrumentation (SRI) meeting in San Francisco, California, August 25th 2003, Development of an Ultra-High Vacuum X-Ray Oven