Cryogenic temperature control and tension/compression attachment stage for an electron microscope
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorDale E. Taylor
Life of this patent
Estimating the term…
Abstract
A tension-compression attachment stage for an electron microscope having a ryogenic heat exchanger is provided. The attachment stage has a support assembly for mounting brackets to support a pair of load screws and a load screw drive assembly and for mounting a fixed jaw. A moveable jaw is supported and moved by the pair of load screws. A cryogenic heat exchanger is soldered to the fixed jaw and slideably engages the moveable jaw through heat conducting slider blocks. The combination allows control of test specimen test within 1.degree.-4.degree.F.
Claims11
A tension-compression attachment stage for use with an electron microscope comprising:
- a base fixture having an upper surface, a lower surface, and a front face;
- a drive support bracket attached to the lower surface of said base fixture;
- a load-screw support bracket attached to the upper surface of said base fixture;
- a pair of load screws rotatably mounted in said base fixture and further secured by rotatable mounts in the load screw support bracket;
- a fixed jaw assembly fixed to the front face of said base fixture;
- a moveable jaw assembly mounted on said load screws;
- a drive assembly mounted on said drive support bracket and engaging said load screws and rotatably driving said load screws;
- and
- a cryogenic cooling loop fixedly mounted on said fixed jaw assembly and slideably mounted on said moving jaw assembly.
Dependencies are inferred from the claim text.