Specimen-cooling system for electron microscope or the like

Details Specimen-cooling system for electron microscope or the like Specimen-cooling system for electron microscope or the like

1996-10-25

1998-04-07

Kilner, Christopher

Refrigeration

Storage of solidified or liquified gas

Including cryostat

2504431, H01J 3720, F25B 1900

Patent

active

057351295

ABSTRACT:
A cooling system for an electron microscope specimen comprises a refrigerant container, a passage for introducing the refrigerant into a heat-exchanging position, a flow rate-adjusting valve mounted in an exhaust passage and a control unit. The flow rate of gas produced by evaporation is adjusted by a rate-adjusting valve. The control unit establishes either a maximum flow rate mode for rapid cooling or a minimum flow rate mode for observation of an image.

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patent: 5417072 (1995-05-01), Silver et al.

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