Mevion Medical Systems, Inc.

Still River Systems Incorporated

Miles S Wagner

Gerrit Townsend Zwart

Mark R Jones

James Cooley

Eros Pedroni

Robert Silva

Stanley J Rosenthal

Michael J Ahearn

James M Stark

Michael J Ahaern

An example particle therapy system includes a particle accelerator to output a particle beam having a spot size; a scanning system for the particle accelerator to scan the particle beam in two dimensions across at least part of a treatment area of an irradiation target; and an adaptive aperture between the scanning system and the irradiation target. The adaptive aperture includes structures that are movable relative to the irradiation target to approximate a shape to trim part of the treatment area. The part of the treatment area has a size that is based on an area of the spot size.

Adaptive aperture

An apparatus includes a yoke having a first end and a second end. The yoke is configured to hold a device that includes an aperture and a range compensation structure. A catch arm is pivotally secured to the first end of the yoke. The catch arm includes a locking feature. The locking feature and the second end of the yoke interface, respectively, to a first retention feature and a second retention feature defined by the aperture and the range compensation structure. The locking feature is configured to interface to the first retention feature and the second end of the yoke is configured to interface to the second retention feature.

Applying a particle beam to a patient

Growing community of inventors

Brookline, MA, United States of America

Miles S Wagner