Low temperature probe and nuclear magnetic resonance analysis apparatus using the same

A low temperature probe having a coil used in an NMR apparatus includes an opposed heat exchanger cooling a cooling medium, and a cooling apparatus having a first cooling stage capable of cooling to no more than 10K and a second cooling stage capable of cooling to at least 10K in series cooling the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUKUDA YUZO, TANAKA HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING PHYSICS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TESTING WEAPONS
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Beschreibung
Zusammenfassung:	A low temperature probe having a coil used in an NMR apparatus includes an opposed heat exchanger cooling a cooling medium, and a cooling apparatus having a first cooling stage capable of cooling to no more than 10K and a second cooling stage capable of cooling to at least 10K in series cooling the cooling medium from the opposed heat exchanger. A probe portion has a first heat exchanging portion executing heat exchange between the cooling medium and the coil, a circulation structure which circulates the cooling medium into the opposed heat exchanger, a second heat exchanging portion executing heat exchange between the cooling medium and a heat radiation shield. The heat radiation shield has a heat capacity greater than the heat capacity of the cooling medium.