Specimen retaining ring system for an electron microscope

Details Specimen retaining ring system for an electron microscope Specimen retaining ring system for an electron microscope

1989-10-16

1990-09-04

Berman, Jack I.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

2504421, 250311, 269254R, H01J 3720

Patent

active

049547127

ABSTRACT:
A movable specimen holder for an electron microscope has a pivotal support block defining a cylindrical counterbore extending from an annular internal shoulder which supports a circular specimen grid. The grid is retained in the counterbore by a resilient split band or ring having an outer cylindrical surface for engaging the counterbore with a friction fit. The ring has a cylindrical inner surface interrupted by an annular recess or groove which is adapted to receive the outwardly projecting feet on the spring legs of a tweezers-like tool. The tool is used to insert the retaining ring into the counterbore adjacent the specimen grid and to remove the ring from the counterbore without losing the ring.

REFERENCES:
patent: 2655826 (1953-10-01), Goldsby
patent: 3297869 (1967-01-01), Ozasa et al.
patent: 3745341 (1973-07-01), Sakitani
patent: 4596934 (1986-10-01), Yanaka et al.
patent: 4651009 (1987-03-01), Totsuka

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