Patent ID: 9291582
Filing Date: 2016-03-22
CPC Classification: A61B,G01N,G02B,G21K

Claim Text:
1. An adjustable collimator for shaping a beam of particles, the beam of particles characterized by a dynamically swept propagation direction radial with respect to a ring of apertures rotating about an axis of rotation and serving to interrupt the beam, the swept propagation direction being transverse to the axis of rotation of the ring of apertures, the collimator comprising: a. an obscuring element substantially opaque to passage of the particles in the dynamically swept propagation direction; b. a gap in the obscuring element adapted for passage through the obscuring element of particles in the dynamically swept propagation direction, the gap characterized by a length taken along a long dimension and a jaw spacing taken along narrow dimension, both the long dimension and the jaw spacing being transverse to the dynamically swept propagation direction, wherein at least one of the length of the gap and the jaw spacing is subject to adjustment.