Apparatus for pre-acceleration of ion beams used in a heavy ion beam applications system
AssigneeGesellschaft fuer Schwerionenforschung mbH
InventorsAlexander Bechthold, Ulrich Ratzinger, Alwin Schempp, Bernhard Schlitt
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Abstract
The present invention relates to an apparatus for pre-acceleration of ions and optimized matching of beam parameters used in a heavy ion application comprising a radio frequency quadruple accelerator (RFQ) having two mini-vane pairs supported by a plurality of alternating stems accelerating the ions from about 8 keV/u to about 400 keV/u and an intertank matching section for matching the parameters of the ion beam coming from the radio frequency quadruple accelerator (RFQ) to the parameters required by a subsequent drift tube linear accelerator (DTL).
Claims16
An apparatus for pre-acceleration of ion beams and optimized matching of beam parameters used in heavy ion beam application systems, comprising:
- a radio frequency quadrupole accelerator (RFQ) having two mini-vane pairs (EL) supported by a plurality of alternating stems (ST) accelerating the ions and wherein said radio frequency quadrupole (RFQ) has an aperture increasing toward the end of its structure and wherein said radio frequency quadrupole (RFQ) has a synchronous phase increasing towards 0 degree towards the end of the structure,
- a complete intertank matching section for matching the parameters of the ion beams coming from the radio frequency quadrupole accelerator (RFQ) to the parameters required by a subsequent drift tube linear accelerator (DTL).
An apparatus for pre-acceleration of ion beams and optimized matching of beam parameters used in heavy ion beam application systems, comprising:
- a radio frequency quadrupole accelerator (RFQ) having two mini-vane pairs (EL) supported by a plurality of alternating stems (ST) accelerating the ions, wherein said radio frequency quadrupole (RFQ) has a synchronous phase increasing towards 0 degree towards the end of the structure,
- a complete intertank matching section for matching the parameters of the ion beams coming from the radio frequency quadrupole accelerator (RFQ) to the parameters required by a subsequent drift tube linear accelerator (DTL),
- two rebuncher drift tubes positioned at the exit of the radio frequency quadrupole (RFQ) and being integrated into the radio frequency quadrupole (RFQ) tank.
Dependencies are inferred from the claim text.