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TORR SCIENTIFIC

TORR SCIENTIFIC
TORR SCIENTIFIC X-ray anodes, UHV Viewports and processes anti-reflective coatings. Torr Scientific was established in 1998 and the employees of the company have many years of experience in the UHV and Electro-Optical industries Torr Scientific Limited is an innovative company that brings together a unique range of expertise, skills and equipment from the worlds of thin film vacuum coating, vacuum instrumentation and electro-optics. Products are manufactured in cleanroom conditions and facilities include vacuum furnaces, TIG welding, helium leak testing, e-beam and sputter coating systems and a UV-Vis-NIR spectrophotometer Viewports Torr Scientific manufactures a range of competitively priced UHV viewports in CF, ISO or KF formats including a variety of coatings to enhance performance. Materials include Kodial (borosilicate glass), Quartz, Sapphire, MgF2, BaF2, CaF2, ZnSe, CVD diamond and Lead Glass. Full transmission, dimensional, optical and temperature specifications can be viewed on the viewport section of the catalogue and standard price list. Custom designed viewports can be quoted on request. Click here for catalogue Click here for price list Click here for important viewport care information (note two sided PDF) KEY VIEWPORT DIMENSIONS VPZ16Q VPZ38Q VPZ64Q VPZ100Q VPZ150Q VPZ16S VPZ38S VPZ64S VPZ100S BVPZ16CAF2 BVPZ38CAF2-NM BVPZ38ZNSE ANTI-REFLECTIVE COATINGS A range of anti-reflective coatings, tailored to the specific requirements of the customer’s application, can be added to our viewports.Click here for further details and example reflectance curves.

MEIVAC INC

MEIVAC INC
High Quality Sputtering System and components MeiVac is a thin-film equipment leader because of our commitment to innovative, yet stringent design, manufacturing and process characterization of the Systems and Components we sell. When you choose MeiVac, you are assured of getting the finest products and processes to meet your needs. Systems and Process Solutions Standard-setting Sputter Systems and Processes for Magnetic Storage Applications Innovative Custom Vacuum Systems for numerous Applications Process Components Proprietary MAK Magnetron Sputter Sources Proprietary Substrate Heaters Innovative Pressure Control Throttle Valves Complex electro-mechanical sub-assembly design and manufacture1

TESTBOURNE

TESTBOURNE
Testbourne Ltd offer a wide selection of high purity materials sensor crystals, thin film controllers, electron microsopy (SEM, TEM), and ultra high vacuum (UHV SuperVac® Materials are representative of the finest coating materials available today which have been processed or especially developed to meet demanding requirements of scientific experimentation, product and process development or full scale production. Testbourne has been established for over twenty five years, serving government research establishments, universities and high technology industries, with particular emphasis on the applications of high purity specialty inorganic materials. The Testbourne SuperVac® name is synonymous with Service! Our company objective is to provide a fast and efficient service, with full technical support to all our customers. Our production caters for small R&D requirements to large scale mass production quantities. By working closely with out customers from the initial R&D stage right through to on-line production, we can be sure to maintain a good quality product. General market areas include PVD coating materials for aerospace, electronics, optical, medical and semiconductor industries. Some important applications where the various SuperVac® Premium Materials have gained acceptance are: Aerospace: Holographic Displays, canopy coatings and anti-corrosion coatings. Engines: Particularly metals and specially synthesized alloys. Batteries: New materials for advanced or special batteries. Electro-optics and Optics: from Deep Ultra Violet - UV Visible - IR to Far Infra Red. Excimer High Power Laser Optics coatings Fibre Optics DWDM and others Flat Panel Displays Production Roll Coatings Sensors Thin Film Solar Cells Single Crystal Growing * Thin Film Evaporation and Sputtering generally The Testbourne SuperVac® Materials page aims to provide a comprehensive listing of many high purity coating materials in available forms. Should you, however, not find your exact requirements, such as stoichiometry, particle size or purity, please call, fax or email your requirements and a member of our Technical Department will be pleased to discuss your needs further. Testbourne is able to supply elements, alloys, intermetallics and compounds as Sputtering Targets. SuperVac® Sputtering Targets are available in various forms and compositions for a wide range of market areas. These include decorative/hard coatings, architectural & automotive glass coatings, optical & magnetic data storage coatings, web coatings & semiconductors.

ADVANCED RESEARCH SYSTEM

ADVANCED RESEARCH SYSTEM
Advanced Research Systems (ARS) provides a complete cryogenic solutionfor low temperature material characterization Laboratory Cryogenic Systems ARS manufactured Pneumatic Drive Closed Cycle Cryocoolers are ideally suited for R&D applications where low temperature and low vibrations are important. ARS is uniquely qualified to design and manufacture customized cryogenic solutions as we can seamlessly integrate our cryocoolers into the final design. Optical Cryostats Low Vibration Cryostats Top Loader Cryostats Helium Flow Cryostats UHV Cryostats Cryogenic Probe Station Mixed Gas Cryocooler Closed Cycle Cryocooler Principles of Operation Click on the image for large size. Closed Cycle Cryocooler Components The major components of the closed cycle cryostat are the expander, compressor, vacuum shroud, and radiation shield. The expander, commonly referred to as the coldhead or cold finger, is where the Gifford-McMahon refrigeration cycle takes pace. It is connected to a compressor by two gas lines and an electrical power cable. One of the gas lines supplies high pressure helium gas to the expander, the other gas line returns low pressure helium gas from the expander. The compressor provides the necessary helium gas flow rate at the high and low pressure for the expander to convert into the desired refrigeration capacity. The vacuum shroud surrounds the cold end of the expander in vacuum limiting the heat load on the expander caused by conduction and convection. The radiation shield is actively cooled by the first stage of the expander and insulates the second stage from the room temperature thermal radiation being emitted from the vacuum shroud. In addition to these major components the closed cycle cryocooler is often accompanied by several support systems. Typically laboratory systems will have an instrumentation skirt, which provides a vacuum port and electrical feedthroughs, as well as a temperature controller to measure and adjust the sample temperature. The system also requires electricity, cooling water for the compressor, and a vacuum pump for the sample space. The Gifford-McMahon Refrigeration Cycle The ARS closed cycle cryocoolers operate on a pneumatically driven Gifford-McMahon refrigeration cycle, often shortened to GM Cycle or GM cooler. The pneumatically driven GM cooler is different mechanically driven GM coolers in that it uses an internal pressure differential to move the displacer instead of a mechanical piston, which results in smaller vibrations. The refrigeration cycle of the ARS closed cycle cryostat starts with the rotation of the valve disk opening the high pressure path allowing the high pressure helium gas to pass through the regenerating material into the expansion space. Second, the pressure differential drives the piston "up" allowing the gas at the bottom to expand and cool. Third the rotation of the valve disk opens the low pressure path allowing the cold gas to flow through the regenerating material removing heat from the system. Finally the pressure differential returns the displacer to its original position completing the cycle. Click on the image for large size. FIG. 1. Block diagram of the internal structure of an ARS closed cycle cryocooler expander. Click on the image for large size. FIG. 2. Steps 1 & 2 of the GM cycle. Click on the image for large size.

VG SCIENTA

VG SCIENTA
The first choice for UHV and Scientific Instruments HV Flanges and fitting UHV Flanges and fitting Feedthroughs Viewports Angle and Straight Throttle Valves Softshut Gate valve Rotary Drives Linear Drives Transfer and trasport Device Manipulation Chambers and Fabrication Bakeout

PRECISION PLUS

PRECISION PLUS
50,000+ stocked parts for over 650 OEM pump models. We provide one of the largest inventories of quality vacuum replacement parts worldwide... and at competitive prices! Replacement parts for: ALCATEL BECKER BUSH CRYO EBARA EDWARDS FISHER SCIENTIFIC FLUIDS & OIL GALILEO KINNEY LEYBOLD PFEIFFER PRECISION SCIENTIFIC RIETSCHLE STOKES TURBO ULVAC VACUUBRAND VARIAN WELCH

GAMMA VACUUM

GAMMA VACUUM
Home About Events Contact Ion Pump Technology Products Support About Gamma Vacuum Gamma Vacuum designs, manufactures, and services ion pumps, titanium sublimation pumps, and their controls. We have grown to be an industry leading ion pump supplier through superior quality, delivery, and service. The employees of Gamma Vacuum have experience in real world vacuum environments ranging from systems manufacturing and optics handling to TIG welding for vacuum environments. In the News WATCH OUR YOUTUBE CHANNEL GROW We have created our own YouTube channel and added some technical information and product tips. Tell us what else you would like us to add at info@gammavacuum.com. 10S ION PUMP MAGNET DESIGNS (YouTube) Overview of the differences between our 10S, 10ST (thin), and 10SW (wide) ion pump magnet designs. Highlights weight and size differences along with temperature and magnetic material variations.

EDWARDSVACUUM

EDWARDSVACUUM
Products Small Wet/Dry Pumps nEXT/EXT Turbo Pumps STP Turbo Pumps Small Diffusion Pumps Large Diffusion Pumps Measurement & Control Vacuum Valves Vacuum Fittings Semiconductor Pumps Exhaust Management Systems Industrial Dry Pump Large Oil Sealed Pumps Mechanical Boosters Chemical Dry Pumps Liquid Ring Pumps Archive Products Oils, Fluids, Greases and Waxes

ATLAS TECHNOLOGIES

ATLAS TECHNOLOGIES
ATLAS TECHNOLOGIES Experts in Aluminum and Titanium Vacuum Technologies Explosion welded bimettalic construction Atlas CF™ bimetallic flanges—the aluminum flange with a stainless steel knife-edge seal, makes UHV aluminum vacuum systems a reality. Atlas CF™ Flange Features Patented UHV aluminum to stainless explosion welding technology (EXW) that is only available from Atlas UHV Rated to 1x10-13+ Torr 1/3 the weight of stainless flanges 90° included angle, long-life knife-edge design, developed at CERN 100% Compatible with the industry standard ConFlat® interface. Reduced stainless steel, Cryogenic, non-magnetic, rectangular and other specialty flange solutions also available Specifications Atlas CF™ Flanges are fully compatible with the industry standard ConFlat® flange. Atlas uses CERN’s 20° back-bevel knife-edge design with a long-life 90° encompassed angle geometry. Atlas flanges are quality controlled using material batch monitoring processes. Materials Body/Weld Interface: Aluminum 6061-T6 Knife-Edge: Stainless Steel 316L, Titanium (Commercially Pure) Optional Rotatable Collar/Receiver: Aluminum 6061-T6, 304 Stainless Steel Optional Environmental Vacuum Leak Tested: < 1x10E-9 cc/sec of He Thermal Peak Temperature: 300°C (during weld-up) Operational Temperature: -200°C to 250°C Mechanical—EXW Interface Tensile: 15,00psi (103MPa) Shear: 10,000psi (69MPa) Atlas CF™ Flange All-Metal Sealing for Aluminum Vacuum Figure 1: 20 degree back bevel on knife edge improves seal by making it more tolerant to thermal cycles as well as enhancing its durability. Figure 2: Cross-section of Atlas CF Flange showing stainless flange face bonded to an aluminum flange body. The Atlas CF™ Flange combines the time-tested reliability of the stainless steel ConFlat® (CF) knife edge, with an aluminum flange body for weld up to an aluminum chamber. The Exceptional Vacuum Properties of Aluminum are Within Reach:The Atlas CF Flange provides standard all-metal-sealing for aluminum vacuum chambers. It enables vacuum engineers and designers to fully utilize the exceptional high and ultra high vacuum properties of aluminum. The Atlas CF™ Flange—the aluminum flange with a stainless steel knife-edge seal—makes UHV aluminum vacuum systems a reality. Using proprietary and state-of-the-art explosion welding technology, our stainless to aluminum bimetallic flanges are fully compatible with the industry standard ConFlat® flange interface. Employing CERN’s innovative 20° back-bevel (90° included angle) knife-edge design, the Atlas CF™ Flange provides a longer service life than conventional CF flanges. Atlas CF™ Flanges are suitable for service in vacuum levels to 1x10-13+ Torr and 250°C bakeout temperatures. Our bimetallic flanges can be easily welded to aluminum vacuum vessels and are the key to successful integration of aluminum UHV technology in your application. Our flanges are used in prominent high (HV), ultrahigh (UHV) and extreme high vacuum (XHV) applications around the world. They find extensive use with semiconductor fabrication OEMs where superior heat conduction, chemical resistance, manufacturing ease and the lower cost of aluminum vacuum systems translate into measurable productivity and cost of ownership advantages. Please browse the size bar and tabs above to find the right models for your application. We are delighted to manufacture any custom modifications per your specific requirements. Application Specific Models: Non-Magnetic Atlas CF™ Flanges: Because aluminum is essentially non magnetic Atlas manufactures a large number of vacuum chambers and flanges for low magnetic permeability applications. Atlas offers a line of Atlas flanges made with a 316LN face instead of a 316L face. 316LN has a significantly lower magnetic permeability than standard stainless steel. Even though 316LN has a lower permeability than conventional stainless it too can often not be used due to its magnetic permeability; for applications requiring even lower permeability we manufacture Atlas CF Flanges with a titanium knife edge and face instead of a stainless steel face. The titanium faced Atlas CF flanges offer an essentially non magnetic all metal seal flanges with the favorable economic and vacuum advantage of aluminum chamber. Typical non magnetic uses are UHV synchrotron and particle physics and industrial applications, where high magnetic permeability is detrimental to beam quality or experimental results. Such applications include non-magnetic beam tubes, wigglers, undulators, free electron lasers, drift tubes, spectrometers... Low Z, Low Nuclear Activation Atlas CF Flanges: In neutron applications such as the production of radioisotopes for medical imaging, aluminum vessels fitted with our flanges replace all stainless steel UHV systems, because residual, neutron induced, radiation in aluminum has a half-life orders of magnitude shorter than that of stainless steel (which contains Cobalt and Chrome). Our flanges enable aluminum UHV system use in cyclotrons and nuclear reactors. For such applications Atlas offers a reduced stainless face or a titanium flange face. Light/Low Weight Atlas CF Flanges: For weight sensitive applications such as Aeronautical, Space or portable systems Atlas offers either a reduced thickness of stainless or titanium faced or a line of Atlas CF flanges. Using these models, engineers can significantly reduce overall weight. Depending on size, reduced stainless flanges are produced with a stainless interface that's about 20% to 40% thinner than standard flanges. Contact our sales department for more information on our custom bimetallic, high and ultrahigh vacuum solutions. Explosion Welding/Explosion Bonding: Robust bimetallic joints for dissimilar metals Atlas Technologies concentrates much effort in the development of methods and processes specifically intended for bonding dissimilar metals for use in ultrahigh vacuum (UHV) scientific and industrial applications. Atlas holds various patents in this technology, including those for the Atlas CF™ flange and the Atlas ATCR™ Face Seal Fitting/Gland. Explosion welding or bonding (EXW) is a solid state process by which dissimilar metals can be joined together at an atomic level. The bonds are very strong, fully metallurgical and ductile. Preparation for bonding requires that plates lay flat to each other, a flyer plate on top of a base plate separated by a small gap. An explosive charge is placed on the flyer plate and detonated from a point at the edge of the plate. A controlled progressive ignition travels across the flyer plate like ripples in a pond. The explosion accelerates the plates together with impact velocities of 1800~2200 m/sec. A high energy surface plasma is formed between the plates, moving ahead of the collision point and stripping electrons from the two bonding surfaces. The electron-hungry metals are then thrust together at extreme pressures forming an electron-sharing bond. Metals like copper and stainless steel can be readily bonded through the EXW process. However aluminum and stainless are metallurgically incompatible and not be directly bonded, because of the formation of brittle intermetallic compounds. Atlas has developed patented multi-layer composites technologies that provide the metallurgical compatibility required for joining aluminum to stainless and other exotic metals. The Atlas CF™ Flange is manufactured using a multi-layered composition consisting of 316L stainless steel, copper, titanium and 6061-T6 aluminum. ConFlat® is a trademark of the Varian Corporation.

THYRACONT

THYRACONT
VD84 digital Pirani vacuum meter with external, exchangeable sensor head VSP841 / VSP842 reads absolute pressure in the fine vacuum range. It is equipped with USB interface and can be used as data logger (up to 2000 measurements). VD84 can be operated with battery or external power supply making it ideal for either portable or stationary applications.

SCIENTIFIC INSTRUMENTS

SCIENTIFIC INSTRUMENTS
Current products - LNG Gas Analyzer System using Raman Spectroscopy - Liquid level, temperature and density tank gauging systems - Cryogenic temperature sensors - Cryogenic temperature monitors and controllers - Industrial liquid level and temperature probes - Aerospace liquid level and temperature probes and transducers - Commercial aircraft temperature probes Temperature sensors include Silicon Diode, Ruthenium Oxide, and Platinum RTD sensors. These sensors are used in petrochemical, aerospace, laboratory and research, high energy physics devices and industrial applications. Temperature Sensors Temperature Instruments Lng Analyzer Systems with Raman

ESS QUADRUPOLE MASS SPETTROMETER

ESS QUADRUPOLE MASS SPETTROMETER

TRIBOTECHNIC

TRIBOTECHNIC
TRIBOTECHNIC The technological leader for Scratch testers, Tribometers and Calotesters MILLI TRIBOLOGY TRIBOLOGY MILLI SCRATCH TESTERS SCRATCH- TESTERS ADHESION TEST CALOTEST