Research Resources
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Scanning Photoluminescence System Scanning Photoluminescence System: Instrument for low temperature, spatially and spectrally resolved photoluminescence measurement and mapping is based on technology developed for research scanning laser microscopy. It includes an MS DOS-compatible 80386-based computer, and sophisticated image processing and display capabilities. The SPM-200 is designed for high resolution mapping of low temperature photoluminescence in semiconductor materials and devices. Samples up to 4" x 4" are cooled to less than 14 K and scanned on precision x-y translation stages. A map of the photoluminescence of the material or device is generated, with spatial resolution approaching 5 microns. The SPM-200 includes two lasers, and will detect photoluminescence from 0.5 to 5.0 microns. Software for mapping at a fixed wavelength, performing peak detection or scanning through the entire spectrum at a fixed point is standard. Scientific Inc., 419 Phillip Street, Unit 9, Waterloo, Ontario, Canada, N2L 3X2; (519) 746-6260. Ion Beam Sources: Both 5 cm and 11 cm models offer maximum ion beam source control and performance. The 5 cm source operates in a versatile range (50-2000 eV, 0200 mA) from low energy, low-to-moderate current density cleaning or ion beam assisted/enhanced deposition applications through etching to demanding high energy deposition processes. Easy-tomaintain and service 11 cm source also has a wide operating range (50-2,000 eV, 0350mA) and is ideal for ion beam sputter deposition or as an assist source at low energy operation. Ion Tech, Inc. 2330 East Prospect, Fort Collins, CO 80525; (303) 2211807.
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Catalytic Membrane Reactor Opportunities: Study suggests potential commercial opportunities for catalytic membrane reactors in industrial catalysis. The study: (1) reviews reactor capabilities and critically analyzes barriers to commercialization; (2) examines performance of polymeric membrane reactors through case studies of selected applications; (3) critically reviews membrane materials including organic polymers, inorganic materials (particularly ceramic), and solid electrolytes; (4) examines recent work in the USSR and Japan; and (5) identifies major research challenges, particularly the desirability of developing very thin (submicron) inorganic and solid electrolyte membranes. Price: $7,000. Catalytica Studies Division, 430 Ferguson Drive, Bldg. 3, Mountain View, CA 94043; (415) 960-3000. AC Magnetic Susceptibility Testing Service: Newly introduced testing service offers accurate, economical AC magnetic susceptibility measurements for all types of materials, including conventional and high temperature superconductors, paramagnetic and ferromagnetic materials, spin glasses, amorphous alloys, and diluted magnetic semiconductors. Test data can include: determination of temperature dependence of both real and imaginary components of susceptibility, examination of the frequency/AC field effect, detection of perfect diamagnetism in superconductors, and determination of magnetic transition temper
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