Ion acceleration system for hadrontherapy

Radiant energy – Irradiation of objects or material – Ion or electron beam irradiation

Reexamination Certificate

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C315S500000, C315S502000, C315S505000

Reexamination Certificate

active

11232929

ABSTRACT:
System for ion acceleration for medical purposes comprising a conventional or superconducting cyclotron, a radiofrequency linear accelerator (Linac), a Medium Energy Beam Transport line (MEBT) connected, at the low energy side, to the exit of the cyclotron, and at the other side, to the entrance of the linear radiofrequency accelerator, as well as a High Energy Beam Transport line (HEBT) connected at high energy side to the radiofrequency linear accelerator exit and at the other end, to a system for the dose distribution to the patient.The high frequency of operation of the Linac allows for a reduced consumption and a remarkable compactness facilitating its installation in hospital structures. The use of a modular LINAC allows varying in active way the energy and the current of the therapeutic beam, having a small emittance and a time structure adapted to the dose distribution based on the technique known as the “spot scanning”.

REFERENCES:
patent: 2004/0108823 (2004-06-01), Amaldi et al.
patent: 2007/0108922 (2007-05-01), Amaldi
Amaldi, U. et al., “LIBO—a linac-booster for protontherapy: construction and tests of a prototype”, Nuclear Instruments & Methods in Physics Research, Elsevier Netherlands, vol. 521, No. 2-3, Apr. 1, 2004, pp. 512-529, XP-002375468.
Kim, J. et al., “Design Study of a Superconducting Cyclotron for Heavy Ion Therapy”, AIP Conference Proceedings AIP USA, No. 600, 2001, pp. 324,326, XP-002378388.
Nolen, J., “Overview of Linac Applications at Future Radioactive Beam Facilities”, Proceedings of the XVIII International Linear Accelerator Conference Cern Geneva, Switzerland, vol. 1, 1996, pp. 32-36, XP-008062524.
Chen, Z. et al., “Bridge Coupler Thermal/Structural Analysis and Frequency Shift Studies for the Coupled Cavity Linear Accelerator of the Spallation Neutron Source”, Particle Accelerator Conference, 2001, IEEE Piscataway, NJ, USA, vol. 2, pp. 897-899, XP-002375469.
Nolen, J., “Radioactive beam facilities of North America”, Nuclear Physics, Elsevier Netherlands, vol. 746, Dec. 27, 2004, pp. 9-16, XP-002375470.
Fietier, N. et al., “High Intensity Cyclotrons for Driving Hybrid Nuclear Systems”, International Conference on Cyclotrons and Their Applications, Jun. 14, 1998, pp. 389-392, XP-008010909.

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