Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Drive apparatus
Post-processing device and image forming system
Controller for soldering iron
Activated carbon cryogels and related methods
Method of predicting a motion vector for a current block in a current picture
Image processing device and information storage medium including motion vector information calculation
Internal wiring structure of semiconductor device
  Randomly Featured Patents
Biological preconcentrator
Manway lift device having an adjustable biasing assembly therefor
4-Phenoxy-phenoxy-alkane-carboxylic acid derivatives and process for their manufacture
Method and imaging system with intelligent frame integration
Facsimile apparatus having improved error check function of reception data
Spring system for a feeder roller of a harvester
Reducing switching losses in a phase-modulated switch-mode amplifier
Adaptive holder, extension handle and toothbrush guide for a toothpaste dispenser
Semiconductor processing
Translation server, method, and program utilizing an updated translated sentence cache database