Patent · US Active

Ion beam extraction apparatus and method of use thereof

US9981147B2 · kind B2 · utility

2Cited by

578References

12Claims

0Family size

Inventors

W. Davis Lee · Newburyport, US
Mark R. Amato · Hamilton, US
James P. Bennett · Birmingham, US

Key dates

Filing date	Aug 4, 2016
Grant date	May 29, 2018
Priority date	—
Expiry date	Aug 4, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N2005/1097
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention comprises an apparatus and method of use thereof for extracting ions from an ion source, such as for use in cancer treatment or tomographic imaging. The extraction apparatus uses a triode extraction system, with the ion source and/or first electrode held at a first potential; an extraction electrode held at a second potential; and a gating electrode, positioned between the ion source and the extraction electrode, oscillating and/or alternating between a first suppression potential proximate that of the ion source potential and a second extraction potential between the ion source potential and the extraction electrode potential. Optionally, the ion source comprises an electron cyclotron resonance ion source.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.