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Grazing Reflection Metrology Tool: The X-Caliber from AXIC can be used to measure film or substrate density, linear thin-film thickness, and surface and interfacial microroughness. Standardless measurements are provided in 10 s to facilitate multipoint mapping. The noncontact, nondestructive tool is suitable for singlelayer and multilayer metal films and dielectrics such as Ti/TiN, tantalum pentoxide, and barium strontium titanate. Density and surface micro-roughness measurements can be made on bulk materials such as silicon or gallium arsenide wafers. Circle No. 70 on Reader Service Card.
Hydrogen Gas Generator: Balston's Model 75-36 hydrogen gas generator continually produces 550 cc/min of 99.99999% pure hydrogen gas at regulated pressures of 0-60 psig, eliminating the need to interrupt analysis to change tanks. The generator produces hydrogen gas through the electrolytic dissociation of water. The resultant hydrogen stream passes through a palladium membrane through which only hydrogen and its isotopes can penetrate. This technology produces hydrogen at a purity two orders of magnitude greater than other technologies. Circle No. 62 on Reader Service Card. Paddle and Basket Adjustment D e v i c e s : DISTEK's Height-Check™ allows users to check the height of the paddle or basket during dissolution testing. This gauge also can be used to verify the height of each stirring element. Measurements of deviation from setpoint are within 0.5 mm. DISTEK's CenterCheck™ allows users of dissolution test baths to set and verify paddle or basket shaft centering in the vessel, close to dosage form. Spring-loaded arms facilitate attachment and removal of the device from each shaft. Circle No. 67 on Reader Service Card. Vacuum Products: Varian's 600-page catalog features products designed to produce, characterize, and deliver high and ultrahigh vacuum environments. Included are sections with general, application, and technical information about primary, diffusion, ion, and turbomolecular pumps; leak detectors; turbopumping systems; instruments such as gauge controllers and transducers; components such as valves, flanges, fittings, and feedthroughs; and customized products. Circle No. 60 on Reader Service Card.
changes. An integral design safety feature prevents the system from turning on if the lamp housing is disconnected. Applications include microphotography, fluorescence, and spectrophotometry. Circle No. 72 on Reader Service Card.
Electroluminescence Backlighting Panel: The Proto-Kut™ from Edmund Scientific was developed for prototyping and low-volume requirements. The panel is easily shaped using scissors, and up to 14 different lamps can be cut from one panel. The Proto-Kut panel includes one low-voltage lamp powered by an IC inverter with two AAA cells, plus one high-voltage lamp powered by either of two magnetic resonating transformertype inverters requiring 9-V input. The different transformer types are optimized to power different-size lighted areas. Circle No. 65 on Reader Service Card. Large-Slide Coating Device:
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