Patent ID: 7238938
Filing Date: 2007-07-03
Classification: H01J

Abstract:
1. A device comprising an energy selecting slit assembly, said slit assembly comprising a slit assembly chassis, opposing slit mechanisms, and an actuator assembly, wherein: said opposing slit mechanisms and said actuator assembly are mechanically coupled to said slit assembly chassis; said opposing slit mechanisms are configured to define a charged particle aperture between respective aperture-defining edges of said opposing slit mechanisms; one of said opposing slit mechanisms comprises a rotational slit mechanism and defines a longitudinal axis of rotation about which said rotational slit mechanism is configured to pivot; said actuator assembly comprises an actuator arm comprising a pair of terminal ends, one of said terminal ends comprising relatively fixed terminus and another of said terminal ends comprising a relatively mobile terminus; said actuator arm is secured to said slit assembly chassis proximate said relatively fixed terminus; said actuator arm is coupled to said rotational slit mechanism via a mechanical coupling positioned proximate said relatively mobile terminus; and said mechanical coupling is configured to couple movement of said relatively mobile terminus of said actuator arm with movement of said rotational slit mechanism about said longitudinal axis of rotation of said rotational slit mechanism.