Resources Contact Us Home
Negative ion beam source vacuum method and apparatus used in conjunction with a charged particle cancer therapy system

Image Number 14 for United States Patent #8129694.

The invention comprises a negative ion beam source vacuum method and apparatus used as part of an ion beam injection system, which is used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. The negative ion beam source contains a vacuum chamber isolated by a vacuum barrier from the vacuum tube of the synchrotron. The negative ion beam source vacuum system preferably includes: a first pump turbo molecular pump, a large holding volume, and a semi-continuously operating pump. By only pumping ion beam source vacuum chamber and by only semi-continuously operating the ion beam source vacuum based on sensor readings about the holding volume, the lifetime of the semi-continuously operating pump is extended.

  Recently Added Patents
Polar nematic compounds
Efficiently emulating computer architecture condition code settings without executing branch instructions
LED package chip classification system
Adjustable draw bar for trailer hitches
Evaluating programmer efficiency in maintaining software systems
Monitoring device for monitoring a display device
Graphical user interface for interpreting the results of image analysis
  Randomly Featured Patents
Method and system for GPS based navigation and hazard avoidance in a mining environment
Phase alternating line video signal processing apparatus
Accumulating transfer unit
Hauling cord
Mobile terminal
Wireless power receiving device
Scroll thrust bearing
Electronic thermostat with repetitive operation cycle
Frequency conversion combiner system for diode lasers
Early fault detection in pump valves