Balanced momentum probe holder

Details Balanced momentum probe holder Balanced momentum probe holder

2005-03-01

2005-03-01

Lee, John R. (Department: 2881)

Radiant energy

Inspection of solids or liquids by charged particles

C250S307000, C073S105000

Reexamination Certificate

active

06861649

ABSTRACT:
A balanced momentum probe holder in an apparatus for characterizing a sample surface has first and second members each having extensible and retractable distal ends. The distal ends extend or retract substantially simultaneously in response to a signal from a detector thus balancing the momentums of the first and second members and reducing the net momentum of the probe holder to essentially zero. Balancing the momentum of the probe holder reduces parasitic oscillations in the apparatus thus enhancing performance.

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