Electric lamp and discharge devices: systems – High energy particle accelerator tube – Magnetic field acceleration means
Reexamination Certificate
2005-03-29
2005-03-29
Wells, Nikita (Department: 2881)
Electric lamp and discharge devices: systems
High energy particle accelerator tube
Magnetic field acceleration means
C315S507000, C315S111610, C315S111810, C250S505100, C250S42300F, C250S424000, C250S492300, C250S492100, C250S3960ML
Reexamination Certificate
active
06873123
ABSTRACT:
The invention concerns a device (10) for regulating the intensity of a beam extracted from a particle accelerator, such as a cyclotron, used for example for protontherapy, said particles being generated from an ion source. The invention is characterized in that it comprises at least: a comparator (90) determining a difference ε between a digital signal IRrepresenting the intensity of the beam measured at the output of the accelerator and a setpoint value ICof the beam intensity: a Smith predictor (80) which determines on the basis of the difference ε, a correct value of the intensity of the beam IP; an inverted correspondence table (40) supplying, on the basis of the corrected value of the intensity of the beam IP, a setpoint value IAfor supply arc current from the ion source (20).
REFERENCES:
patent: 6717162 (2004-04-01), Jongen
patent: 6736831 (2004-05-01), Hartmann et al.
patent: 6745072 (2004-06-01), Badura et al.
patent: 2 539 867 (1984-07-01), None
patent: 2 749 613 (1997-12-01), None
patent: WO 0040064 (2000-07-01), None
Vándoren, Vance J. “The Smith Predictor: A Process Engineer's Crystal Ball” Control Engineering May 1996, pp. 61-62.
Bauvir Bertrand
Marchand Bruno
Ion Beam Applications S.A.
Merchant & Gould P.C.
Wells Nikita
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