US 12,064,644 B2
Pinhole collimator systems and methods
Flavio Poehlmann-Martins, Fremont, CA (US); Joshua McNeur, Palo Alto, CA (US); Alexander Cahill, San Francisco, CA (US); Ognian Sabev, San Jose, CA (US); and Reza Alibazi Behbahani, North Brunswick, NJ (US)
Assigned to VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US)
Filed by Varian Medical Systems, Inc., Palo Alto, CA (US)
Filed on Sep. 22, 2021, as Appl. No. 17/482,221.
Prior Publication US 2023/0090348 A1, Mar. 23, 2023
Int. Cl. A61N 5/10 (2006.01)
CPC A61N 5/103 (2013.01) [A61N 5/1042 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A radiation system comprising:
a particle source configured to produce an electron particle beam;
a bremsstrahlung target configured to receive the electron particle beam and generate a photon radiation beam, wherein the electron particle beam and the photon radiation beam are configured in a pattern corresponding to an inflected image, the inflected image being a scaled inversion of a cross section of a target tissue; and
a pinhole collimator configured to receive the photon radiation beam in the pattern that corresponds to the inflected image, invert the pattern of the photon radiation beam, and forward the photon radiation beam with the inverted pattern towards the target tissue.