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Sub-50 Femtosecond Optical Parametric Amplifier System: Spectra-
Waterproof Radiometer Detectors: International Light's underwater radiometer detectors are designed for use with IL1400A and IL1700 research radiometers and permit real-time integration without data loss. They feature heavy-duty quartz diffusers for cosine spatial response, anodized aluminum housings with O-ring seals, and water-blocked polypropylene reinforced cables up to 600 ft long. The detectors are suitable for spectral studies from 200 to 1100 nm and low light levels down to 0.5 pW/cm 2 . Circle No. 61 on Reader Service Card. S p o t Weider: The OM97 from Qmicron Associates was designed for welding applications in the fields of UHV and microstructure technology. The weider weighs 3 lb, and it has an input power of 20 W, maximum energy per shot of 16 J, and a repetition rate of 10 shots/minute. The "weld pen-head" allows access to confined Spaces and is suitable for assembly of thin wires, metal foils, STM rips, and thermocouples. The welding power can be t u n e d to avoid s p a r k i n g . Exchangeable electrodes provide flexibility for various applications and materials. Circle No. 62 on Reader Service Card.
Portable Xenon Pressure Chamber The Xcell from Oxford Cryosystems and the University of Oxford is designed to p r o d u c e h e a v y atom d e r i v a t i v e s for macromolecular x-ray crystallography. The Xcell encloses the crystal sample in a small Chamber, which then is pressurized with xenon from a cylinder to a maxi mum of 25 bar. A quick-release connector allows the Xcell to be isolated from the gas supply while under pressure, making it portable. Controlled inlet and vent valves enable the Chamber to be pressur ized and vented without damage to the sample. Circle No. 63 on Reader Service Card.
Physics's sub-50-fs OPA is based on all diode-pumped solid-state technology. With its wavelength extension options, the System provides high-energy Output up to 35 fi] with no gap wavelength tuning from 300 nm to 10 }tm at 1 kHz repetition rate. The OPA is pumped by a sub 50 fs Tksapphire amplifier Spitfire (>0.5 mj, 1 kHz, 800 nm) which is in turn p u m p e d by Evolution, the diode-pumped solid-state intra-cavity doubled Q-switched Nd:YLF laser. Circle No. 68 on Reader Service Card.
Mass Spectrometry System for Corrosive and Explosive G a s Moni toring: Pfeiffer Vacuum's OmniStar'" is suitable for exhaust monitoring of CVD processes, process control during production, and maintenance of CVD tools. The System monitors key functions, including p u r g e gas flow, and ensures that the scrubber is functioning properly. Included are pumps, gauges, and Prisma™ gas analyzer for interlocked startup/shutdown and Operation as well as Windows®-based Quadstar'" 422 Software. The gas analyzer wiring can be adapted to measure specific gases. Circle No. 60 on Reader Service Card.
Plastics References: Free catalog from Plastics Design Library features 40 technical reference books and CD-ROMs, 16 of which are new. Topics include addi tives, mold s
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