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Mjniaturized Reverse View LEED System
Automated AC Magnetic Susceptometer
Automated AC Magnetic Susceptometer: Model 7000 AC Susceptometer measures ac magnetic susceptibility of paramagnetic, ferromagnetic, and superconducting materials as a function of temperature, frequency, and field. The System can measure susceptibility in small fields ranging from 0.001 to 10 gauss RMS, with or without a de bias field. Temperature can be controlled in the ränge from 4.2 K to 330 K to an aecuraey of 0.1 K. Lake Shore Cryotronics, 64 East Walnut Street, Westerville, OH 43081; (614) 8912243. UniSlide Assemblies: Expanded catalog describes over 400 manual assemblies which provide precise linear and rotary motions. Potential uses are positioning, measuring, and scanning Operations in experimental research, prototypes, and OEM automated equipment for assembly of small parts. UniSlides are construeted of 2024-T3 hard alloy, and carriages have four bonded low-friction polymer bearings. Maximum linear travels are 86 inches; maximum loads are 400 Ib. Velmex, Inc., P.O. Box 38, East Bloomfield, NY14443; (716) 657-6151. Superconducting Thin Film Service:
One cm2 samples of one-micron-thick YBCO-coated zirconium Substrates, guaranteed to be fully superconducting above
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Miniaturized Reverse View LEED System: Rear view MICROLEED System with miniature electron gun (10 mm diameter) can operate up to 3 KV for AES studies. Controller includes back-lit LCD displays for beam current, filament current, suppressor voltage, focusing voltage, beam energy, and screen voltage. Beam energy is adjustable while viewing LEED pattern via remote control box, and optics are available with 3 or 4 grids for LEED and RFA modes. MICROLEED can be fitted to any 8-inch or 6-inch CF port. Microscience, Inc., 41 Accord Park Drive, Norwell, MA 02061; (617) 871-0308; fax (617) 871-0972.
Specialty Inorganic Materials: Brochure on the specialty inorganic materials supplied by EM Industries' sister Company, BDH England, describes: (1) fluorotran, 77 K, are now available for purchase at infrared glass materials for use in fiber and bulk optics; (2) fused halide salts for $2,000. Other sizes and Substrates can be custom ordered. Thin film process was use in special technologies; (3) volatile halides for use in CVD processes for IHV developed jointly with University of Rochester's Electrical Engineering De- and III-V semiconduetors and optical fipartment. CVC Products, Inc., 525 Lee ber; (4) chalcogenides for uses in various Road, P.O. Box 1886, Rochester, NY 14603; optical and electronic devices; (5) reactive oxides - high Tc superconduetors; and (6) (716)458-2550. miscellaneous Compounds prepared for High Surface Area Materials: Study ti- high purity applications. EM Industries, tled Preparation, Properties, and Use ofHighInc., Advanced Chemicals Division, 5 Surface Area Materials examines current Skyline Drive, Hawthorne, NY 10532; nontraditional applications and issues (914) 592-4660. concerning their growth in the electronics, biotechnology, and ceramics indus- H
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