Analytical Systems for Synchrotrons
The ARPES system is one example of a customised multi-chamber UHV system installed at a synchrotron facility but there are many other examples which we will be happy to discuss on request. The ARPES system shown here is dedicated to the investigation of physical properties (electronic band structure) of high temperature superconductors.
A multi-chamber UHV system designed around a central radial distribution chamber with attached analytical chamber and auxiliary chambers that fulfill the demands of sample transportation under true UHV conditions (pressure <10-10 mbar). The base pressure in the analytical chambers is < 5x10-11 mbar.
- Multi-technique analytical chamber integrating various surface analysis methods; Monochromatic UV Photoelectron Spectroscopy (UPS) and LEED. Sample positioning is via a stable, high precision, 5 axis manipulator with all axes motorised for automatic surface mapping. The sample receiving station is equipped with a closed cycle helium cryostat that allows temperature variation over the range 10 K to 400 K. The mu-metal chamber is equipped with a hemisperical analyser incorporating 2D detector with energy resolution better then 0.5 meV and also incorporates a monochromatic UV source and a LEED system.
The flexible design allows for easy modification to meet future scientific demands.
- The system is designed so that it can be used in the laboratory as well as on a synchrotron beam line. The analyser is mounted horizontally and can be easily rotated by 90 degrees. The frame has easy height and x-y adjustment for quick and easily reproduced alignment
- Single level preparation chamber equipped with ion source and mass spectrometer and numerous ports for future expansion
- Load lock chamber for loading up to six samples with internal bakeout facility
- Storage chamber for 6 sample holders