Procure Treatment Centers, Inc.

Phenix Medical LLC

John M Cameron

Timothy A Antaya

Vladimir Anferov

Keith A Solberg

Alexander V Klyachko

Steven E Vigdor

A gas scintillation detector is designed to provide in-beam absolute dose monitoring for ion beam radiotherapy treatments employing spot or raster beam scanning, especially with microsecond-scale beam pulses. Detection of prompt primary scintillation light emitted by gas molecules excited by beam passage provides electronic signals that can be processed to yield output data proportional to delivered dose up to high dose rates, and that appear quickly enough to provide feedback to influence real-time beam intensity adjustments for subsequent steps in the beam scan. When the scintillation light is collected in multiple photo-detectors, the invention is furthermore capable of measuring spot beam position with spatial resolutions of order one millimeter.

Fast, high-rate, position-sensitive absolute dosimeter for ion beam therapy

A gantry for administering proton beam therapy with improvements which reduce the size, weight, costs and radiation beam loss associated with proton beam therapy systems currently commercially available. The gantry utilizes achromatic superconducting multi-function electromagnet systems wherein the magnets can include dipoles and quadrupoles. The achromatic properties of the rampable magnet systems allow for ease of transmission of the beam whose energy is rapidly changed through a large range of different energies without changing of the strength of the magnetic fields or dipole settings. The magnets may be made with either low or high temperature superconductors. The gantry design further integrates beam scanning but keeps the gantry isocentric. A much greater fraction of the beam can be transmitted through the gantry than with current art, thereby reducing radiation shielding requirements and the demand put on the accelerator to produce large quantities of proton beam.

Compact isocentric gantry

Growing community of inventors

Bloomington, IN, United States of America

John M Cameron