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Topic: Cryostat

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	Cryostat with pressure-relief cover - Patent 5094084
		The invention relates to a cryostat, in particular a helium cryostat with an additional nitrogen tank and a vacuum section, comprising a pressure-relief cover arranged at the outside of the tank wall of the cryostat for closing an opening therein.
		The cryostat pressure-relief cover according to claim 3, wherein the rocking lever is mounted both for rotation inside the groove and for radial displacement along the groove relative to the cover means axis.
		Cryostats of this type are employed, for example, for housing the superconductive magnet coil of an NMR spectrometer.
	www.freepatentsonline.com /5094084.html (3151 words)

	Cryostat - Patent 4878351
		A Cryostat according to claim 1, wherein the bolt passing through the said lug is formed by the cylindrical portion (63) of a screw (61) which follows the head (62) of the said screw (61) and whose end forms at the same time a stop limiting the depth of penetration of the said screw.
		A Cryostat according to claim 8, wherein the plate with the said extension (53) is formed by a portion of the components (51) to be interconnected.
		In the case of cryostats whose components consist of concentrically arranged tanks and shields with cylindrical jacket surfaces and plane end faces, with their axes extending in the horizontal direction, the tension members may, for example, be arranged without any problems between the plane end faces of the vessels and/or the shields.
	www.freepatentsonline.com /4878351.html (3309 words)

	Cryonics Institute -- Cryostat Report
		A vacuum pump needed to be run on the cryostat or else it would lose the vacuum required to slow liquid nitrogen boil-off, but the pump was not so strong as to produce a Hard Vacuum in the sub-micron range, as is done with Alcor's dewars.
		One cylindrical cryostat is less efficient because the inner wall is supported to the outer wall with bracing and thicker contracts (which conduct more heat) -- in contrast to the other cryostats for which the inner wall is only connected to the outer wall by a circle at the top.
		The outer walls of the rectangular cryostats are made of a composite of fiberglass & polyester resin, whereas the inner walls are made of fiberglass & epoxy resin composite.
	www.cryonics.org /cryostats.html (2513 words)

	Cryostat having a heating plate - Patent 7240497
		A cryostat (1) having a sealable housing (2) is described, the housing (2) enclosing a coolable cryostat chamber (3).
		The cryostat as defined in claim 1, wherein the heating plate is integrated into the housing of the cryostat at lectern height or at substantially lectern height.
		To ensure a constant temperature, the microtomes are arranged in complexly encapsulated cryostat chambers, and the latter are correspondingly cooled with the refrigeration device.
	www.freepatentsonline.com /7240497.html (1151 words)

	Spitzer Technology: Cryostat
		The cryostat consists of the vacuum shell, inner and middle vapor cooled shields, helium tank, and the fluid management system.
		The cryostat vacuum shell must be sealed during ground operations and launch.
		Once the cryostat is cooled and in the vacuum of space, a cryostat door on the top of the shell is opened to allow light into the Multiple Instrument Chamber.
	www.spitzer.caltech.edu /technology/cryostat.shtml (233 words)

	NIFS Flexure Test Plan
		In the figure, the cryostat is fitted with a pivot support over the window cell and two trunnions are then fitted such as to allow rotation of the cryostat around an axis normal to the cryostat window.
		Once the cryostat is lifted clear of the trolley, a jack or third crane is used to rotate the cryostat.
		The cryostat can be rotated through a full 360° about the long axis but will need to be put down in the V-blocks after 180° of rotation to swap the nylon slings over the helium lines and cables to the enclosures.
	msowww.anu.edu.au /nifs/sdns/sdn0006.13.htm (941 words)

	WIRE Cryostat
		The ring visible at the right "shoulder" of the cryostat is the aluminum ring that connects the #3 composite support tube (installed, but hidden by the vapor cooled shield) to the #4 support tube (not yet installed).
		The cryostat assembly as shown has been built outward from the two inner tanks (not visible) to the second vapor-cooled shield seen in the photo.
		The ring located at the "shoulder" of the cryostat is the aluminum ring that connects the #3 composite support tube (installed, but not visible) to the #4 support tube (not yet installed).
	sunland.gsfc.nasa.gov /smex/wire/mission/cryostat.html (323 words)

	ORTEC How to Choose the Right Photon Detector - Shielding/Cryostat
		The low-background cryostat is substantially better than the standard one for energies below ~500 keV, somewhat better between 500 and 1500 keV, and little better above that.
		Between 500 and 1500 keV, the low-background cryostat may help to lower the MDA, but the same amount of investment in a higher-efficiency detector will produce about the same MDA improvement.
		They are (a) the J configuration, which makes it possible to shield the dewar, much of the cryostat, and the cryosorption material from the detector element, and (b) the HJ configuration, which, in addition, allows the preamplifier to be shielded from the detector element.
	www.ortec-online.com /detectors/photon/b1_6.htm (366 words)

	AS Scientific Products Ltd. - CRYOSTATS
		There are four cryostats in the range, the Standard 50 mm, the Standard 70mm, the Mini, and the Maxi.
		These cryostats offer a range of sample sizes, hold times and physical dimensions which will cover most of the applications likely to be encountered.
		The complete separation of the variable temperature insert and the helium container by the liquid nitrogen shield which allows the insert to be heated to 300 K with no increase in the consumption of liquid helium.
	www.asscientific.co.uk /cryostats.htm (331 words)

	Cryostat sectioning. University of Bristol, Department of Clinical Veterinary Science.
		Upon reaching the laboratory the frozen sample is attached to a cryostat chuck.
		The sample is then put into the cryostat where it must be left to warm to cryostat temperature before cutting, 15-20 minutes is usually adequate.
		Once the tissue is attached to the chuck it should be left in the cryostat for an adequate length of time to allow it to reach the selected operating temperature.
	www.bristol.ac.uk /vetpath/cpl/cryostat.html (1334 words)

	Herschel Passes a New Milestone - Space - RedOrbit
		The cryostat sits behind the solar panel, isolated from it by several layers of insulation, and contains two tanks that will be filled with liquid helium.
		The cryostat was cooled down and the tanks were filled with liquid helium just as they will be five days before launch.
		The final tests in the current round were to monitor the behaviour of the cryostat with the outer vessel at ambient temperature; then to load it into the Large Space Simulation chamber at the European Science and Technology Centre (ESTEC) and monitor it again, this time under the conditions that Herschel will find in space.
	www.redorbit.com /news/space/849254/herschel_passes_a_new_milestone/index.html (568 words)

	Scientific Frontline® Mission News / Herschel passes a new milestone
		The cryostat sits behind the solar panel, isolated from it by several layers of insulation, and contains two tanks that will be filled with liquid helium.
		The cryostat was cooled down and the tanks were filled with liquid helium just as they will be five days before launch.
		The final tests in the current round were to monitor the behavior of the cryostat with the outer vessel at ambient temperature; then to load it into the Large Space Simulation chamber at the European Science and Technology Center (ESTEC) and monitor it again, this time under the conditions that Herschel will find in space.
	www.sflorg.com /missionnews/herschel/mn022107_01.html (572 words)

	Cryostat and Cryostat Options - CANBERRA, Analytical instruments, systems and services for radiation detection and ...
		While some cryostat types are restricted for use with specific detector types, others can be used with all types of detectors.
		This is the type of cryostat that is standard for all types of detectors except the Si(Li) and the Ultra-LEGe.
		Slimline cryostats feature a cylindrical shaped detector chamber − preamplifier housing which is convenient for shielding and for interfacing to other equipment.
	www.canberra.com /products/450.asp (454 words)

	NASA Tech Briefs - MFS31697
		Originally, the cryostat was to be used in measuring apparent strains in wide aluminum/ lithium panels as functions of temperature in order to develop data for temperature compensation of the readings of strain gauges on a tank containing liquid hydrogen.
		Relative to the cryostat used previously for this purpose, the improved cryostat can be prepared for a test in less time, and it loses less helium during each test.
		The cryostat and adjacent panel areas protruding from the cryostat were then coated with a thermally insulating foam.
	www.nasatech.com /Briefs/May04/MFS31697.html (742 words)

	Filling the cryostat
		The cryostat has a hold time of at least 12 hours with the telescope stationary at zenith.
		Standard practice is that the cryostat gets a refill of liquid nitrogen at the start of the night, at the end of the night and at midday.
		If you find that the hold time of the cryostat is not sufficient to get you through the night without an extra refill, leave a fault report.
	www.ing.iac.es:8080 /Astronomy/observing/manuals/html_manuals/jkt_instr/jkt_jag/node12.html (372 words)

	BM29: cryostat manual
		The BM29 cryostat is a Displex cryostat from Oxford Instruments.
		The cryostat operates from around T=20 K (on the sample) up to 450 K, where the cryostat vessel has to be evacuated for T> 300 K. The set-up is controlled by an temperature controller (Oxford ITC503) which is programmed either manually or via the control software on the beamline workstation (standard operation mode).
		If the VAT gate valve is closed, you can assume that the cryostat is still filled with a low pressure of He (this should be the general state), otherwise it is at ambient pressure and you pump the whole.
	www.esrf.fr /exp_facilities/BM29/cryostat_1.html (3804 words)

	[No title]
		Requests for frozen sections of tissue from patients known or suspected to be infected with HIV should be strongly discouraged.
		Wipe all exposed surfaces inside and outside the cryostat chamber with a towel or sponge that has been soaked in 95% ethanol.
		Allow the cryostat to dry completely to prevent moving parts from freezing together.
	www.ohsu.edu /pathology/Handbook/SurgPath/SPECIAL_PRECAUTIONS.htm (299 words)

	Cryostat sectioning. University of Bristol, Department of Clinical Veterinary Science.
		Upon reaching the laboratory the frozen sample is attached to a cryostat chuck.
		The sample is then put into the cryostat where it must be left to warm to cryostat temperature before cutting, 15-20 minutes is usually adequate.
		Once the tissue is attached to the chuck it should be left in the cryostat for an adequate length of time to allow it to reach the selected operating temperature.
	www.bris.ac.uk /vetpath/cpl/cryostat.html (1334 words)

	Magnet Cryostat
		There are three ports at the top of the cryostat for connecting the current leads, helium lines and safety devices to the helium chamber.
		The alignment of the cryostat with the magnet iron is checked for correct positioning and alignment of the cryostat.
		The commissioning work of the cryostat was started by cooling down the bobbin and filling it up with liquid helium.
	www.veccal.ernet.in /~vecpage/scc/cryostat/Cryostat.htm (1032 words)

	WIRE Cryostat Photos Page
		Close-up of the cryostat during hydrogen testing at Lockheed-Martin's Santa Cruz facility in July 1997.
		The assembled cryostat with the ETU aperture shade during bakeout.
		The telescope-to-cryostat mounting flange is being used to hold the cryo-assembly on the assembly fixture.
	www.ipac.caltech.edu /wire/cryopict.html (451 words)

	5.2 Cryostat Performance (Site not responding. Last check: )
		The effective lifetime of the cryostat was determined by the rate at which the super-fluid helium in the main tank was depleted through venting of gaseous phase helium.
		Although this considerably reduced the heat input to the cryostat, it came at a penalty of impaired platform stability from transient temperature gradients in the struts.
		Instrument electronics: a source of heat within the cryostat were the electronic systems used by the instrument detector and readout systems.
	www.iso.vilspa.esa.es /manuals/HANDBOOK/gen_hb/node34.html (479 words)

	Spaceflight Now \| Delta Launch Report \| The SIRTF telescope
		The telescope and cryostat shell are warm at launch, and are then actively chilled to an appropriate operating temperature once in orbit.
		Only portions of the three main science instruments that need to be chilled are contained in the multiple instrument chamber, which is mounted directly to the helium tank in the cryostat shell.
		In order to protect the science instruments, the cryostat shell that encloses them must be sealed during ground operations and launch.
	www.spaceflightnow.com /delta/d298/030414telescope.html (1696 words)

	Jencons Scientific, Inc. : Liquid Handling Products / Laboratory Equipment & Supplies
		They are suitable for an endless range of applications and in the correct configuration are capable of cutting a wide diversity of specimens from undecalcified bone to brain, resins, plastics and plant tissue as well as more usual soft tissue.
		This range is applicable to the OTF5000 cryostat fitted with the 0.5µm to 30µm feed screw.
		Enables tissues to be rapidly frozen to -80°C within the cryostat cabinet.
	www.jenconsusa.com /products_specs_1.cfm?id=66 (1048 words)

	Cryostat Microtome, Cryotome Freezers India
		Cryostat Microtome is specifically designed for Cryotechniques suitable for Clincal and Research operation.
		The Cryostat microtome offers the performance, ease-of-use and versatility to make it the ideal instrument in all types of laboratory work.
		The Cryostat Microtome is used for cutting thin sections of fresh, frozen material.
	www.freezers-india.com /Cryostat.htm (125 words)

	Yeh Group - SCSO cryostat
		The superconducting cavity must be maintained at constant temperature and pressure to prevent fluctuations in the resonant frequency.
		The cryostat has three temperature controlled stages, and is able to hold the temperature below 2 K with nanokelvin stability.
		The cavity may also be filled with a test fluid (such as liquid, superfluid or gaseous helium-4) for density measurements at arbitrary temperatures between approximately 1.8K and 5K.
	www.its.caltech.edu /~yehgroup/scso/cryostat.html (126 words)

	The Cryostat
		The cryostat is merely a microtome mounted within a freezer.
		A piece of tissue is removed from an organism, placed onto a metal stub and covered with a viscous embedding compound to keep it in a form convenient for sectioning.
		Sectioning operation with the cryostat is similar to that of the microtome, with the exception that one handles frozen sections and must be handled at reduced temperatures.
	sln.fi.edu /qa98/biology/journals/part3.html (298 words)

	Physics Today Online - New Products
		cryostat and is equipped with a heater, allowing the user to vary the temperature of the sample stage between 5 and 60 K (or between 77 and 150 K with LN cooling).
		The ST-500 microscopy cryostat from Janis is a low vibration system designed for use in microscopy, imaging, and high spatial resolution photoluminescence.
		The cryostat geometry offers a short working distance for use with high-magnification optics and permits mounting on common microscope stages and translators; it can be used in both transmission and reflection geometries.
	www.aip.org /pt/vol-53/iss-9/p75.html (1287 words)

	MSAM/Tophat - Long Hold-time Cryostat
		The circular port on the lower left is for the optical beam, and is shown with a solid Aluminum blank.
		This cryostat is unique in its ability to remain cold unattended for over two weeks at balloon altitudes, while being very small and light.
		Although cryostats have been around for a long time this design has a longer hold time than any of comparable weight, and a lower weight than any of comparable hold time.
	topweb.gsfc.nasa.gov /cryo.html (745 words)

	SuperTran Continuous Flow Cryostat Systems by Janis Research
		ST-100 cryostats, but with the ability to manipulate between samples.
		ST-170 cryostat is the ideal choice for ESR spectroscopy.
		The cryostat will easily fit between the poles of a magnet.
	www.janis.com /p-stc.html (278 words)

	Cryostat mounting and adjustment
		The cryostat may be mounted on the 235 or 500 mm cameras; in both cases it is fitted in the same orientation - with its fill tube uppermost above the horizonal axis.
		A circular mounting ring is bolted onto the spectrograph - this clamps the cryostat with a three-point kinematic location; it allows a tilt/focus adjustment as well as rotation of the cryostat (figure 4.8).
		It is possible to remove the CCD cryostat and then replace it on the same spectrograph camera without adjustment.
	www.ing.iac.es:8080 /Astronomy/observing/manuals/html_manuals/int_instr/ids_ccd/subsection2.7.3.2.html (324 words)

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