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
System and method for performing image correction
Internal wiring structure of semiconductor device
Pear tree named `PremP109`
Lighting elements
System and method for video encoding
Method for controlling operation of a wind turbine
  Randomly Featured Patents
Adjustable elliptical exercise apparatus
Method for spinning a petroleum-origin mesophase
Liquid ejecting apparatus
Encoder and a method of encoding for partial response channels
Method end device for source decoding a variable-length soft-input codewords sequence
Network-like woven 3D fabric material
Top down/bottom up control system for retractable shade
Purification of hydrophobic solids
Contact assembly
Waterproof keyboard device