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Topic: Cryopump


In the News (Sun 12 Oct 08)

  
  Cryopump water drain - United States Patent 5,228,299
The cryopump further includes a drain filter assembly connected to the exhaust port for collecting debris and removing liquid that is released from the cryopumping surfaces.
This cryopump comprises a vacuum vessel having a surface 72 sloped at an angle,.theta., relative to the liquid accumulator 76.
The liquids released from the cryopumping panels "rain" on the surface of a radiation shield 77 which is similarly sloped and are directed down the sloped surface 77 towards the liquid accumulator 76.
xrint.com /patents/us/5228299   (5100 words)

  
 Genesis Vacuum Technologies, Inc.
Upright ICP cryopumps consist of a body/flange orientation that is mounted directly in-line with the cryopump centerline.
Low-Profile (LP) ICP cryopumps consist of a body/flange orientation that is mounted 90 degrees from the centerline of the pump.
In the scientific research community cryopumps are used in beam lines, target chambers for particle accelerators, and for general high vacuum applications including space simulation chambers.
www.genvactech.com /Vac_Prod/VP_Cryopumps.htm   (1007 words)

  
 Cryopump - Wikipedia, the free encyclopedia
A cryopump is a vacuum pump that traps gases and vapours by condensing them on a cold surface.
Cryopumps are commonly cooled by dry ice or liquid nitrogen, or stand-alone versions may include a built-in cryocooler.
Cryopumps are often combined with sorption pumps by coating the cold head with highly adsorbing materials such as activated charcoal or a zeolite.
en.wikipedia.org /wiki/Cryopump   (575 words)

  
 Cryopump
A vacuum cryopump typically consists of a vacuum-tight vessel with a valved inlet, containing a highly absorbent material such as a synthetic zeolite microporous on the scale of 1 to 10 Å (Angstrom units), and an enclosing cryogenic vessel.
In industrial cryopumps, the vessel will typically be a Dewar flask, but homespun sorption pumps may be as simple as a labglass flask of zeolite in a styrofoam cooler filled with liquid nitrogen.
As the sorbent saturates, the effectiveness of a sorption pump decreases, but can be recharged by heating the zeolite material (preferrably under conditions of low pressure) to a temperature near but below the breakdown point of the zeolite material's porous structure.
www.ebroadcast.com.au /lookup/encyclopedia/cr/Cryopump.html   (146 words)

  
 MICRO: Green Mfg.
The hydrogen speed of a cryopump is measured using a speed dome constructed to the industry-standard specification ISO 1608-1:1993(E).
A design was developed that conducts hydrogen to the cryopump in the most optimized fashion and that also minimizes the probability that a hydrogen molecule will reflect back out of the cryopump once it reaches the inside of the radiation shield.
Cryopumping systems will continue to be the best means for performing high-vacuum pumping in ion implantation systems for the foreseeable future.
www.micromagazine.com /archive/05/03/thompson.html   (3056 words)

  
 Highlights
In order to maximize the performance of the gyros and maintain their extraordinarily low characteristic spin-down periods (time required to slow down to ~37% of their initial rotation speeds) of greater than 10,000 years, it was essential to draw as many of the remaining helium molecules as possible away from the gyro rotors and housings.
Designing a cryopump that would fit inside the probe and meet all the constraints required by the GP-B experiment proved to be yet another formidable engineering challenge for lead probe designer, Gary Reynolds of Lockheed Martin, GP-B Co-Principal Investigator John Turneaure of Stanford and their collaborating teams.
During this procedure, the heaters on the cryopump and elsewhere in the probe were turned on, raising the temperature in the lower probe by 6-8 kelvins.
einstein.stanford.edu /highlights/hl_062405.html   (1834 words)

  
 Home Page cryogenics
Cryopump Repair Parts are quality-oriented designed and manufactured replacement parts with years of proven reliability.
The cryopumps and coldheads that are used in your systems must be kept in perfect operating condition.
In the past, cryopumps and coldheads would be replaced with completely new units or returned to the original equipment manufacturer (OEM) for expensive repairs.
www.austincryogenics.com   (812 words)

  
 [No title]
It is used for purge the cryopump before cool down.
And when the pressure is lowered to about 1E-2 Torr, open the other angle valve to the flex line connected to cryopump vent.
Before we turn on the e-gun power supply, first turn on the 1/4hp water chiller outside clean room and make sure the switch at the outlet is in the right position.
www.physics.rutgers.edu /cleanroom/doc/e-gun.doc   (693 words)

  
 Perkin-Elmer : Ultra-Clean Ultek Vacuum Technology   (Site not responding. Last check: 2007-10-09)
Load lock pump- down and pallet transfer are automatically controlled; sequence and the position of all valves are displayed on front control panels.
Under load conditions, 70º is maintained in the first stage and less than 15º in the second stage.
Automatic regeneration of the cryopump minimizes downtime by cycling during off-shift periods.
www.cpa-sputtering.com /Pe4400d.htm   (522 words)

  
 BTeV Vacuum System & Beam Pipe Mechanical Design
  When the heat sink/cable support is cooled with liquid nitrogen, the heat sink acts as a cryopump that pumps water at a rate of 10,000’s L/sec.
  A liquid helium cryopump system is added to the vacuum system in order to pump non-condensable gases such as nitrogen (7500 L/sec) and hydrogen (2000 L/sec).
The heat sink (cryopanel), acting as a cryopump, is likely to have some ice build-up during the operation of the detector.
home.fnal.gov /~mlwong   (2527 words)

  
 Helix Technology now part of Brooks Automation, Inc. - Products - On-Board® Cryopumps
On-Board solutions include sophisticated software and easy-to-use graphical user interfaces to significantly improve the performance and operation of the cryopump.
Today, the On-Board Cryopump is the standard of the world for reliability and performance.
If you are located outside of the US or Canada, please contact us for pricing information.
www.helixtechnology.com /products/category57.html   (169 words)

  
 We sell and service CTI  Cryo pumps and cryopump systems
The 9600 can be used for one or several pumps.
With higher helium output, the 9700A Compressor is ideal for operating of more than one pump.
In many multiple cryopump applications, one 9700A Compressor is enough.
www.lowener.se /e/CTI_cryo_vacuum_pumps.htm   (170 words)

  
 Kimo M. Welch Consultants of Vacuum Technology
Chaired the AVS Cryopump Recommended Practices Committee (work completed in 1999).
Formerly, as Engineering Manager successfully staffed up cryopump engineering department.
Manufactured sputter-ion pumps and supplies; cryopumps, vacuum gauging; UHV hardware, etc.
www.vacuumtechnology.net /Resume/Resume.htm   (508 words)

  
 Cryopump, Cryo pump compressors, cryopump accessories.   (Site not responding. Last check: 2007-10-09)
Cryopumps, CTI Cryo Pump Compressors, Cryo Pump Monitors
Prices shown are for rebuilt CTI cryo pumps.
Cryopumps are available in as-is condition for a lower price.
www.tfstechnologies.com /Vacuum_Equipment/cryopumps.htm   (155 words)

  
 Ion Implant Cryopump - 7/1/2003 - Semiconductor International   (Site not responding. Last check: 2007-10-09)
On-Board IS cryopump system is for ion implant.
Its high-performance refrigerator technology extends cryopump life by actively compensating for the ever-increasing heat loads caused by implant-related deposits.
Use of this web site is subject to its Terms and Conditions of Use.
www.reed-electronics.com /semiconductor/article/CA307409   (153 words)

  
 (ITERP2/08) Test Facility TIMO for Testing the ITER Model Cryopump
Continuing that development process, FZK has been preparing the test facility TIMO (Test facility for ITER Model pump) since 1996.
This test facility provides for testing a cryopump all needed infrastructure as for example a process gas supply including a metering system, a test vessel, the cryogenic supply for the different temperature levels and a gas analysing system.
For manufacturing the ITER model pump an order was given to the company L' Air Liquide in the form of a NET contract.
www.iaea.org /programmes/ripc/physics/fec1998/html/node232.htm   (200 words)

  
 Used vacuum equipment, cryo pumps, vacuum chambers, edwards vacuum pump, and cryopump parts at TFS Technologies, Inc..   (Site not responding. Last check: 2007-10-09)
Used vacuum equipment, cryo pumps, vacuum chambers, edwards vacuum pump, and cryopump parts at TFS Technologies, Inc..
Cryopumps, cryo pump parts, vacuum chambers, vacuum parts,
Used vacuum equipment, vacuum cryo pumps, new vacuum equipment, vacuum valves,
www.tfstechnologies.com   (96 words)

  
 Helix Technology now part of Brooks Automation, Inc. - Products - On-Board® IS Cryopump Systems   (Site not responding. Last check: 2007-10-09)
The new world standard in cryogenic vacuum technology, On-Board IS cryopump systems leverage Helix' new high-efficiency cryogenics technology to provide unparalleled vacuum performance and energy efficiency.
Patented distributed control system monitors and constantly adjusts individual elements of the cryopump system to maintain optimal system-wide vacuum performance, delivering exceptional process consistency
Lowest consumption of energy and cooling water of any CTI-Cryogenics cryopump system — with no compromise in vacuum performance
www.helixtechnology.com /products/product87.html   (117 words)

  
 Intlvac - ABB Extrel Support
CTI builds a broad array of compressors, cryopumps, and cryopump systems designed to deliver exceptional performance, reliability, and productivity.
Outstanding performance with all Cryo-Torr Cryopumps, On-Board Cryopumps, WAterpumps, and TurboPlus Vacuum Pumps
Supports both singe and grouped pump configuration and is compatible with new and existing CTI Cryogenics pumping installations
www.intelvac.com /customers_brooks_cti.htm   (345 words)

  
 Cryopumps and Sorption pumps in vacuum-guide.com
- Custom Meisner and cryo-coils: design and manufacture of water vapour cryopumps Meisner coils and cryo-baffles to complete your cryo-pump installation.
- Cryopump service / installation: Our experienced engineers have expertise which covers the whole range of high vacuum equipment including; thin film, ophthalmic, precision optics we provide a professional high vacuum service.
Stratox is an independent manufacturing company, producing refrigerant blends for Polycold as well as other water vapour cryo-pumps.
www.vacuum-guide.com /firmenlisten/produkte/cryopump.htm   (143 words)

  
 eBay Store - Cryopump Service: Cryopump, CTI Cryogenics, Cryogenic   (Site not responding. Last check: 2007-10-09)
VacNet Inc provides Cryopump Service and Repair for CTI Cryogenics Cryopumps.
CTI Cryogenics CT8 Cryopump Rebuilt 1 Year Warranty
Use of this Web site constitutes acceptance of the eBay User Agreement and Privacy Policy.
stores.ebay.com /VacNet-Inc   (100 words)

  
 Inventory
Varian 18"d x 15"h, SST Wheeler flg spool.
6" ASA Perkin-Elmer cryopump with bellow vibration isolator.
CTI SC-21 compressor for CTI-8 cryopump (early) A/C. 150 PSI, 17,000 Hrs, (Item No. 1002)
www.techbrokers.com /Techbrokers_Catalog_1Page9.html   (288 words)

  
 Patents: 4918930
System and method for recovering from a power failure in a cryopump
Diagnosis process of vacuum failure in a vacuum chamber
Purge and rough cryopump regeneration process, cryopump and controller
www.freepatentsonline.com /REF4918930   (104 words)

  
 [No title]
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www.aps.anl.gov /epics/docs/USPAS2003/05_SNL.ppt   (317 words)

  
 Adsorbing Arrays, Adsorbers, Cryopump Accessories - Extek Cryogenics, Inc.   (Site not responding. Last check: 2007-10-09)
Adsorbing Arrays, Adsorbers, Cryopump Accessories - Extek Cryogenics, Inc.
Are You Using CTI Cyro Pumps on Your Process Equipment?
Now you can run cryo pumps much longer before regeneration is required, increasing your productivity.
www.extekcryogenics.com   (108 words)

  
 Cryopump - Category: Vacuum
1 - 12 of 12 listings for 'Cryopump'
This is search number 9,947,470 since July 1, 1997.
Use of this Web site constitutes acceptance of the LabX User Agreement.
www.labx.com /v2/content/Cryopump.cfm   (40 words)

  
 Vacuum Systems
OR CTI-8 CRYOPUMP, LEYBOLD D30 DIRECT DRIVE ROUGHING
EBEAM SYSTEM WITH 4 POCKET GUN AIRCO TEMESCAL CV-8 POWER SUPPLY, STAINLESS STEEL WATER COOLED BELL JAR, LEYBOLD DIRECT DRIVE 2 STAGE ROUGING PUMP CTI 8" CRYOPUMP AND HELIUM COMPRESSOR, THICKNESS MONITOR, ION/THERMCOUPLE GAUGE.
all manual valving can be configured with diffusion pump or cryopump filiment evaporator
www.jmind.com /vacsys.html   (160 words)

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