Research Resources
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omputer-Controlled Voltage Cali-
Ultralow Light-Level Imaging System
Journal of Aerospace Composites: Bi-monthly technical trade magazine serves engineers, scientists, and managers involved in the design and manufacture of products utilizing composite materials. Contents include technical articles by composites engineers, and information prepared by engineering and technology editors. Cardiff Publishing Company, 6300 S. Syracuse Way, Suite 650, Englewood, CO 80111; (303) 220-0600.
Particle Beam Interface for Magnetic Mass Spectrometers: Tworecentlyintroduced ThermaBeam™ Systems are now available for use on VG 7070 and Jeol AX, HX and SX high-resolution magnetic mass spectrometers. The interfaces optimize aérosol génération, desolvation, and momentum séparation to efficiently introduce submicron particles of analyte into the ion source. Molécules ne ver before analyzed in a gas-phase instrument can now be investigated using conventional ionization methods. Solvent vapors are removed during the momentum séparation process so library searchable électron ionization (El) and chemical ionization (CI) spectra using various reagent gases can be routinely collected. The ThermaBeam interfaces also feature a thermal, pneumatic aérosol generator. Extrel Corporation, 240 Alpha Drive, Box 11512, Pittsburgh, PA 15238; (412) 782-3884.
Mass and Volume Calculator with a
Particle Beam Interface for Magnetic Mass Spectrometers
Metallographic Saw Attachment: An attachment for the Buehler ISOMET or LECO VC-50 metallographic saw will enable users to section materials up to ten times faster, eut twice the thickness of material, provide a superior surface finish, and wafer materials to 0.004 inches thick by 1.5 inches o.d. Applications for the Counter-Rota-Cutter include sectioning high Tc superconductor materials, opening ceramic ICs without contamination, and gênerai metallography. Geller MicroAnalytical Laboratory, One Intercontinental Way, Peabody, MA 01960; (505) 535-5595. Metallographic Saw Attachment
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bration: The Josephson Array Voltage Standard system, a complète computercontrolled system, implements the NIST définition of the International Légal Volt, achieving traceability without the need to transport standards to NIST for calibration. The operator sélects the desired array voltage level, and the computer controls the microwave frequency and acquires and processes ail data. The array can generate any voltage in the -20 to 2.0 volt range with a resolution of 100 nV and an accuracy equal to that of the System time base. Principal components include a voltage standard cryoprobe, microwave hardware set, JBS-200A bias source, software, and a liquid hélium dewar. RMC Cryosystems, 4400 South Santa Rita Avenue, Tucson, AZ 85714; (602) 889-7900.
Materials Database: Software designed for easily making rapid weight estimâtes or detailed mass calculations first calculâtes the volume of an object, then displays its weight in any of the 700 materials in its database. Auxiliary functions include calculations when mass or volume is kn
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