METHOD AND APPARATUS FOR CONTROLLING TEMPERATURE IN A CRYOCOOLED CRYOSTAT USING STATIC AND MOVING GAS

WIPO Patent Application WO/2011/112987

A3

A cryostat for providing temperature regulation, one purpose being measuring physical properties of materials, the cryostat employing a superconducting magnet assembly (19) for generating variable magnetic field in the sample space (21) and a cryogenic cooler (30, 31, 33, 50, 52) for cooling the sample space. The cryogenic cooler chamber (22) configuration provides for efficient heat exchange between different stages of the cryogenic cooler without the need for physical heat links. This construction enables selective delivery of cooling power from the cryogenic cooler to the desired areas within the cryostat without using flexible physical thermal links. A counter flow exchanger (43) and ambient temperature valves (40, 46) facilitate efficient use of the cryogenic cooler stages (30, 31). The removal of large heat load generated by the superconducting magnet while operating in the sweeping mode is achieved, in part, by employing a solid plate (27) thermal coupling element between the cryogenic cooler chamber and the magnet assembly.

BLACK RANDALL (US)
MARTIEN DINESH (US)
NEILS WILLIAM (US)
DIEDERICHS JOST (US)

PCT/US2011/028184

November 08, 2012

March 11, 2011

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QUANTUM DESIGN INC (US)
BLACK RANDALL (US)
MARTIEN DINESH (US)
NEILS WILLIAM (US)
DIEDERICHS JOST (US)

F25B9/14; F17C13/00; F25B9/10; F25D19/00

WO2009086430A2

2009-07-09

US6477847B1	2002-11-12
US20090293505A1	2009-12-03
EP1628109A2	2006-02-22
EP1586833A2	2005-10-19
US20040045315A1	2004-03-11
US20050223714A1	2005-10-13
GB2335973A	1999-10-06
GB2318176A	1998-04-15
GB2301174A	1996-11-27
US20020002830A1	2002-01-10
US6640552B1	2003-11-04
DE102006046688B3	2008-01-24

MAXHAM, Lawrence (9330 Scranton Road Suite 35, San Diego California, US)

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