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Equipment

The Linfield Research Institute has a well equipped laboratory for surface physics and materials science studies.  The laboratory also contains extensive ultra-high vacuum equipment, including eight ion pumped systems, a diffusion pumped system, and three diffusion pumped quick change systems.  Tektronix has recently donated a large quantity of equipment, including two TDS5034B Digital Phosphor Oscilloscopes, as well as other oscilloscopes and arbitrary waveform generators.  Some other research equipment includes:

Floating Zone Melter: A floating zone refinement system, which uses an arc melting technique for zone refinement of refractory materials. The system is used to grow single crystals of HfC, NbC, TaC, TiC, ZrC, ZrB2, TiB2, LaB6, and CeB6.

Scanning Auger Microprobe: A (Physical Electronics) PHI 590 SAM (Scanning Auger Microprobe), is available for detailed surface analysis. In addition, this system is equipped with a PHI 548 XPS (X-ray Photoelectron Spectroscopy) analysis system and an argon ion gun for depth composition profiling.

Auger Spectrometer: Two PHI 10-150 fixed-beam Auger systems with cylindrical electron energy analyzer.

Scanning Electron Microscope: An Amray 1000 scanning electron microscope is available which has a resolution of 50 Angstroms. This system is equipped with a Microspec wavelength dispersive x-ray analyzer.

Focused Ion Beam (FIB) Microscope/Milling system: An FEI system with both secondary electron and ion detection, and a gas injection system for deposition. 

Scanning Tunneling/ Atomic Force Microscope:  This Autoprobe VP, by Park Scientific, is capable of measurements under high vacuum.

Quadrupole Mass Spectrometers: Two systems with mass ranges to 500 amu.

Field Ion Microscope: A field ion microscope provides imagery of crystal surfaces at atomic resolutions.

Field Emission Retarding Potential (FERP) Analyzer: An instrument capable of making absolute work function measurements on single crystal plane surfaces .

Thermionic Projection Microscope (TPM) System: This system, developed here at Linfield, uses computer-processing of a digitized video image to permit rapid identification of the highest electron emitting planes of a single crystal or other cathode surfaces. It is capable of ascertaining thermionic work functions of multiple planes virtually simultaneously.

Laue' X-ray System: Used for determining crystal orientation of single crystal specimens.

Cryostat System:  An Oxford Optistat DN, coupled with a Lakeshore 330 temperature controller, allows sample temperatures to be precisely controlled to temperatures between 77K and 500K.

Shop Facilities: The physics department maintains both a machine shop and a glass shop.