Title :
Design studies of an RFQ-injector for a medicine-synchrotron
Author :
Bechtold, A. ; Ratzinger, U. ; Schempp, A. ; Schlitt, B.
Author_Institution :
IAP, J. W. Goethe-Universitat, Frankfurt, Germany
Abstract :
An accelerator facility for cancer tumour radiotherapy with ions is proposed for the Radiologische Universitaetsklinik in Heidelberg. Design studies have been done for the injector-complex in front of the Synchrotron with respect to the construction and operation costs as well as to a comfortable handling of the machine. After the source section and a LEBT path the beam will be injected into the RFQ at an energy of 8 keV/u to be accelerated to 400 keV/u with an electrode voltage of 70 kV and an expected power consumption of 100 kW. The RFQ layout, featuring a special parameter design, has been investigated with an extended version of the PARMTEQ code. The length of the RFQ will be approximately 1.45 m, the operation frequency is 216.816 MHz, the same value as in the following IH drift tube Linac. For beam matching reasons, the combination of the drift tubes with the RFQ electrodes at the high energy end is examined in detail by beam dynamics simulations and model measurements
Keywords :
accelerator RF systems; accelerator magnets; cancer; electromagnets; ion accelerators; ion beams; medical computing; particle beam bunching; particle beam dynamics; particle beam injection; radiation therapy; synchrotrons; tumours; 1.45 m; 216.816 MHz; 400 keV; 70 kV; 8 keV; IH drift tube linear accelerator; LEBT path; PARMTEQ code; RFQ electrodes; RFQ injector; Radiologische Universitaetsklinik; accelerator facility; bead perturbation; beam bunching; beam dynamics simulations; beam matching; cancer tumours; design studies; electrode voltage; ion beams; medical synchrotron; operation frequency; power consumption; radiofrequency quadrupole injector; radiotherapy; synchrotron; Acceleration; Cancer; Costs; Electrodes; Ion accelerators; Particle beams; Structural beams; Synchrotrons; Tumors; Voltage;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987805
