Invention Grant
- Patent Title: Cryogenic specimen holder
- Patent Title (中): 低温试样架
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Application No.: US13560647Application Date: 2012-07-27
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Publication No.: US09010202B2Publication Date: 2015-04-21
- Inventor: Halina Stabacinskiene , Jeffrey J. Gronsky , Christine M. Thomas , Pushkarraj V. Deshmukh , Alan C. Robins , Paul E. Fischione
- Applicant: Halina Stabacinskiene , Jeffrey J. Gronsky , Christine M. Thomas , Pushkarraj V. Deshmukh , Alan C. Robins , Paul E. Fischione
- Agency: Metz Lewis Brodman Must O'Keefe LLC
- Agent Barry I. Friedman
- Main IPC: B01L3/00
- IPC: B01L3/00 ; G01N21/00 ; G01N23/20 ; H01J37/20 ; H01J37/26 ; B01L7/00

Abstract:
An improved cryogenic specimen holder for imaging and analysis facilitates imaging at very high tilt angles with a large field of view. A retractable specimen holder tip protects the specimen during transport. An optimized Dewar design is positioned at a fixed, tilted angle with respect to the axis of the holder, providing a means of continuously cooling the specimen irrespective of the high tilt angle and amount of liquid nitrogen present in the vessel. The Dewar neck design reduces entrapment of nitrogen gas bubbles and its shape prevents the spilling of liquid nitrogen at high tilt angles. The specimen holder has a retractable tip that completely encapsulates the specimen within a shielded environment internal to the specimen holder body. The cooling and specimen transfer mechanisms reduce thermal drift and the detrimental effects of vibrations generated by both the evaporation of liquid nitrogen present in the Dewar and other environmental effects.
Public/Granted literature
- US20130014528A1 CRYOGENIC SPECIMEN HOLDER Public/Granted day:2013-01-17
Information query
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