CYCLOTRONS 2010 - List of Authors (Stephani, T.)

Paper

Title

Page

Automated Operation and Optimization of the VARIAN 250 MeV Superconducting Compact Proton Cyclotron

93

T. Stephani, U. Behrens, H. Röcken
VMS-PT, Bergisch Gladbach, Germany
C. Baumgarten
PSI, Villigen, Switzerland

The 250 MeV superconducting compact proton cyclotron of Varian Medical Systems Particle Therapy (the former ACCEL) is specially designed for the use in proton therapy systems. During medical operation typically no operator is required. Furthermore, several automated control system procedures guarantee a fast, simple, and reliable startup and beam optimization after overnight shutdown or regular service actions. We report on the automated startup procedures, automated beam centering, and automated optimization of extraction efficiency. Furthermore we present an automated beam current setting as used during medical operation by means of an electrostatic deflector located at the cyclotron center at low beam energies.

TUM1CCO04

The VARIAN 250 MeV Superconducting Compact Proton Cyclotron: Medical Operation of the 2nd Machine, Production and Commissioning Status of Machines No. 3 to 7

283

H. Röcken, M. Abdel-Bary, E.M. Akcoeltekin, P. Budz, T. Stephani, J.C. Wittschen
VMS-PT, Bergisch Gladbach, Germany

Varian Medical Systems Particle Therapy (the former ACCEL) has successfully finalized in 2008 the commissioning of its 2nd superconducting compact proton cyclotron for use in proton therapy. The 250 MeV machine serves as proton source for treatments at the first clinical proton therapy center in Germany which opened in early 2009. Furthermore, Varian is currently commissioning and factory testing its 3rd machine. We report on the operation and performance of the 2nd machine as well as on the successful cool-down, quench testing, and magnetic shimming of the 3rd machine. In addition we present RF commissioning plans using a newly developed solid state amplifier, and plans for the upcoming factory beam commissioning in the new Varian cyclotron test cell, scheduled for October 2010. Finally we provide a brief status and outlook on machines no. 4 to 7.

Slides TUM1CCO04 [5.761 MB]

Paper	Title	Page
MOPCP021	Automated Operation and Optimization of the VARIAN 250 MeV Superconducting Compact Proton Cyclotron	93
	T. Stephani, U. Behrens, H. Röcken VMS-PT, Bergisch Gladbach, Germany C. Baumgarten PSI, Villigen, Switzerland
	The 250 MeV superconducting compact proton cyclotron of Varian Medical Systems Particle Therapy (the former ACCEL) is specially designed for the use in proton therapy systems. During medical operation typically no operator is required. Furthermore, several automated control system procedures guarantee a fast, simple, and reliable startup and beam optimization after overnight shutdown or regular service actions. We report on the automated startup procedures, automated beam centering, and automated optimization of extraction efficiency. Furthermore we present an automated beam current setting as used during medical operation by means of an electrostatic deflector located at the cyclotron center at low beam energies.

TUM1CCO04	The VARIAN 250 MeV Superconducting Compact Proton Cyclotron: Medical Operation of the 2nd Machine, Production and Commissioning Status of Machines No. 3 to 7	283
	H. Röcken, M. Abdel-Bary, E.M. Akcoeltekin, P. Budz, T. Stephani, J.C. Wittschen VMS-PT, Bergisch Gladbach, Germany
	Varian Medical Systems Particle Therapy (the former ACCEL) has successfully finalized in 2008 the commissioning of its 2nd superconducting compact proton cyclotron for use in proton therapy. The 250 MeV machine serves as proton source for treatments at the first clinical proton therapy center in Germany which opened in early 2009. Furthermore, Varian is currently commissioning and factory testing its 3rd machine. We report on the operation and performance of the 2nd machine as well as on the successful cool-down, quench testing, and magnetic shimming of the 3rd machine. In addition we present RF commissioning plans using a newly developed solid state amplifier, and plans for the upcoming factory beam commissioning in the new Varian cyclotron test cell, scheduled for October 2010. Finally we provide a brief status and outlook on machines no. 4 to 7.
	Slides TUM1CCO04 [5.761 MB]