Controlling intensity of a particle beam

Patent metadata

Field	Value
Publication number	US-9723705-B2
Application number	US-201314039307-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Sep 28, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

In an example, a synchrocyclotron includes a particle source to provide pulses of ionized plasma to a cavity; a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column outwardly; and an extraction channel to receive a beam of particles from the cavity for output from the particle accelerator. The particle source is configured to control pulse widths of the ionized plasma in order to control an intensity of the beam of particles. This example synchrocyclotron may include one or more of the following features, either alone or in combination.

First claim

What is claimed is:

1. A synchrocyclotron comprising:
a particle source to provide pulses of ionized plasma to a cavity;
a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the ionized plasma outwardly;
an extraction channel to receive a beam of particles from the cavity for output from the synchrocyclotron; and
a control system comprising one or more processing devices to control the particle source to provide pulse widths o…

Assignees

• Mevion Medical Systems Inc

Inventors

• Gall Kenneth P
• Zwart Gerrit Townsend
• Van Der Laan Jan
• Molzahn Adam C
• O'Neal Iii Charles D
• Sobczynski Thomas C
• Cooley James

Classifications

• H05H7/02 Primary

  Electricity · mapped topic

• A61N2005/1087

  Human Necessities · mapped topic

• A61N5/1077

  Human Necessities · mapped topic

• H05H2007/122

  Electricity · mapped topic

• H05H2007/082

  Electricity · mapped topic