Apparatus for pre-acceleration of ion beams used in a heavy...

Electric lamp and discharge devices: systems – High energy particle accelerator tube – Magnetic field acceleration means

Reexamination Certificate

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C315S500000, C315S005290, C315S005410, C315S005390, C313S360100

Reexamination Certificate

active

07138771

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).

REFERENCES:
patent: 6809325 (2004-10-01), Dahl et al.
patent: 6855942 (2005-02-01), Bechthold et al.
Yuan V W et al: “Unexpected matching insensitivity in DTL of GTA accelerator”Proceedings of the 1995 Particle Accelerator Conference(Cat. No. 95CH35843),Proceedings Particle Accelerator Conference, Dallas, TX, USA, May 1-5, 1995, pp. 1167-1169.
Ratzinger U et al.: “A new matcher type between RFQ and IH-DTL for the GSI high current heavy ion prestripper linac”Proceedings of the XVIII International Linear Accelerator Conference, Proceedings of 18thInternational Linac Conference(Linac 96), Geneva, Switzerland,CERN, Switzerland, pp. 128, 130.
Chidley B G et al.: “A heavy ion RFQ with high accelerating gradient”1986 Linear Accelerator Conference Proceedings(SLAC-303), Stanford, CA, USA; Jun. 2-6, 1986, pp. 361-363.
Billen J H et al.: “Smooth transverse and longitudinal focusing in high-intensity ion linacs”Proceedings of the XVIII International Linear Accelerator Conference, Proceedings of 18thInternational Linac Conference(Linac 96), Geneva, Switzerland, Aug. 26-30, 1996, pp. 587-591.
Wolf B H et al.: “Heavy ion injector for the CERN Linac 1”Nuclear Instruments&Methods in Physics Research, Section A(Accelerators, Spectrometers, Detectors and Associated Equipment), Jul. 15, 1987, The Netherlands, vol. A258, No. 1, pp. 1-8.
Bechtold A et al.: “Design studies of an RFQ-injector for a medicine-synchrotron”PACS2001 Proceedings of the 2001 Particle Accelerator Conference(CAT. No. 01CH37268),Proceedings of 2001 Particle Accelerator Conference, Chicago, Illinois, USA Jun. 18-22, 2001, pp. 2485-2487.

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