CYCLOTRONS 2010 - List of Keywords (quadrupole)

Paper	Title	Other Keywords	Page
MOPCP034	Beam Optics Study of a Fragment Separator for the Planned Rare Isotope Beam Facility in Korea	dipole, shielding, optics, ion	123
	W. Wan LBNL, Berkeley, California, USA J.-W. Kim NCC, Korea, Kyonggi, Republic of Korea Y.-H. Park NCC, Goyang, Kyeonggi, Republic of Korea
	A heavy-ion accelerator facility based on linear accelerator is planned in Korea. The facility is designed to provide high-current radioisotope beams with various users. The primary beam energy is in the range of a few hundreds of MeV/u. The major mechanism to produce isotope beams is in-flight fragment separation. The rare isotope beams are to be utilized in the fields of nuclear, material and biomedical sciences. The separator system should have high mass resolution to identify and separate rare isotopes of interest, and also large momentum and angular acceptances for maximal utilization of produced isotopes. We are considering improved beam optics design to realize such a system, where all second order aberrations are corrected. The study has been performed mainly using COSY Infinity, and the results will be presented.

MOPCP070	Design of IBA Cyclone 30XP Cyclotron Magnet	cyclotron, extraction, resonance, proton	189
	E. Forton, M. Abs, W.J.G.M. Kleeven, B. Nactergal, D. Neuvéglise, S. Zaremba IBA, Louvain-la-Neuve, Belgium
	IBA is developing an evolution of its famous Cyclone 30 cyclotron. The Cyclone 30xp will be a multi-particle, multiport cyclotron capable of accelerating alpha particles up to 30 MeV, deuteron (D-) beams between 7.5 and 15 MeV and proton (H⁻) beams between 15 and 30 MeV. The magnet system has been improved with IBA Cyclone 18/9 and Cyclone 70 features. Coil dimensions have been updated in order to raise the free space in the median plane. This allows the mounting of a retractable electrostatic deflector system for the extraction of the alpha particle beam. Gradient corrector pole extensions have been added to ease the alpha beam extraction. Finally, compensation for relativistic effects between H⁻ (q/m=1/1) and D-/alpha (q/m=1/2) beams is made by movable iron inserts located in two valleys, as in IBA Cyclone 18/9 cyclotrons. These modifications could have an adverse effect on the flutter. In addition, the second harmonic induced by the movable iron inserts drives the machine in the 2.ν_r=2 resonance close to the extraction. As a consequence, modifications on the pole sectors and chamfers have been made in order to improve the flutter and eliminate the harmful resonance.

MOPCP093	Beam Extraction System and External Beam Line of Kolkata Superconducting Cyclotron	extraction, cyclotron, optics, target	242
	J. Debnath, S. Bhattacharya, T. Bhattacharyya, U. Bhunia, P.S. Chakraborty, M.K. Dey, C. Mallik, Z.A. Naser, G.P. Pal, S. Paul, J. Pradhan DAE/VECC, Calcutta, India
	All the major components of the extraction system of the Kolkata superconducting cyclotron are installed and functional. It includes the Electrostatic deflectors, magnetic channels, M9 slit etc. Internal beam acceleration has already been done successfully and now we are on the verge of extracting and transporting the beam to the cave. The external beam transport system has been designed comprising of quadrupole magnets, steering magnets, switching magnets, beam diagnostics etc. One of the four beam lines has been installed, which extends 20 meters up to the experimental cave - 1. Control and monitoring system for all these components have been developed and tested. All the beam dynamical and technical aspects of the beam extraction and beam transportation have been discussed in this paper.

FRM1CCO05	Advocacy for a Dedicated 70 MeV Proton Therapy Facility	proton, cyclotron, focusing, scattering	416
	A. Denker, C.R. Rethfeldt, J.R. Röhrich HZB, Berlin, Germany D. Cordini, J. Heufelder, R. Stark, A. Weber Charite, Berlin, Germany
	Since 1998 we treated more then 1500 patients with eye tumors at the HZB cyclotron with a 68 MeV proton beam. The 5 years follow up shows a tumor control rate of more then 96%. The combination of a CT/MRT based planning and excellent physical beam conditions like 2 nA in the scattered proton beam, a 0.94 mm distal dose fall-off and a dose penumbra of 2.1 mm offers the opportunity to keep side effects on a lowest level. However all new medical proton facilities are equipped with accelerators delivering beams of 230 MeV and more. While this is needed for deep seated tumors, a lot of physical and medical compromises have to be accepted for the treatment of shallow seated tumors like eye melanomas. Hence, we suggest a 70 MeV proton therapy facility. It should be equipped with a horizontal beam line and can have optionally a vertical line for more complicated cases under anesthetics or for biological experiments. By the use of PBO Lab and MCNPX beam line concepts and a radio-protecting architecture are designed. In Germany we see a definite need for a single low energy facility which guarantees the excellence of proton therapy for the need of 80 million people.
	Slides FRM1CCO05 [1.881 MB]

Paper

Title

Other Keywords

Page

MOPCP034

Beam Optics Study of a Fragment Separator for the Planned Rare Isotope Beam Facility in Korea

dipole, shielding, optics, ion

123

W. Wan
LBNL, Berkeley, California, USA
J.-W. Kim
NCC, Korea, Kyonggi, Republic of Korea
Y.-H. Park
NCC, Goyang, Kyeonggi, Republic of Korea

A heavy-ion accelerator facility based on linear accelerator is planned in Korea. The facility is designed to provide high-current radioisotope beams with various users. The primary beam energy is in the range of a few hundreds of MeV/u. The major mechanism to produce isotope beams is in-flight fragment separation. The rare isotope beams are to be utilized in the fields of nuclear, material and biomedical sciences. The separator system should have high mass resolution to identify and separate rare isotopes of interest, and also large momentum and angular acceptances for maximal utilization of produced isotopes. We are considering improved beam optics design to realize such a system, where all second order aberrations are corrected. The study has been performed mainly using COSY Infinity, and the results will be presented.

MOPCP070

Design of IBA Cyclone 30XP Cyclotron Magnet

cyclotron, extraction, resonance, proton

189

E. Forton, M. Abs, W.J.G.M. Kleeven, B. Nactergal, D. Neuvéglise, S. Zaremba
IBA, Louvain-la-Neuve, Belgium

IBA is developing an evolution of its famous Cyclone 30 cyclotron. The Cyclone 30xp will be a multi-particle, multiport cyclotron capable of accelerating alpha particles up to 30 MeV, deuteron (D-) beams between 7.5 and 15 MeV and proton (H⁻) beams between 15 and 30 MeV. The magnet system has been improved with IBA Cyclone 18/9 and Cyclone 70 features. Coil dimensions have been updated in order to raise the free space in the median plane. This allows the mounting of a retractable electrostatic deflector system for the extraction of the alpha particle beam. Gradient corrector pole extensions have been added to ease the alpha beam extraction. Finally, compensation for relativistic effects between H⁻ (q/m=1/1) and D-/alpha (q/m=1/2) beams is made by movable iron inserts located in two valleys, as in IBA Cyclone 18/9 cyclotrons. These modifications could have an adverse effect on the flutter. In addition, the second harmonic induced by the movable iron inserts drives the machine in the 2.ν_r=2 resonance close to the extraction. As a consequence, modifications on the pole sectors and chamfers have been made in order to improve the flutter and eliminate the harmful resonance.

MOPCP093

Beam Extraction System and External Beam Line of Kolkata Superconducting Cyclotron

extraction, cyclotron, optics, target

242

J. Debnath, S. Bhattacharya, T. Bhattacharyya, U. Bhunia, P.S. Chakraborty, M.K. Dey, C. Mallik, Z.A. Naser, G.P. Pal, S. Paul, J. Pradhan
DAE/VECC, Calcutta, India

All the major components of the extraction system of the Kolkata superconducting cyclotron are installed and functional. It includes the Electrostatic deflectors, magnetic channels, M9 slit etc. Internal beam acceleration has already been done successfully and now we are on the verge of extracting and transporting the beam to the cave. The external beam transport system has been designed comprising of quadrupole magnets, steering magnets, switching magnets, beam diagnostics etc. One of the four beam lines has been installed, which extends 20 meters up to the experimental cave - 1. Control and monitoring system for all these components have been developed and tested. All the beam dynamical and technical aspects of the beam extraction and beam transportation have been discussed in this paper.

FRM1CCO05

Advocacy for a Dedicated 70 MeV Proton Therapy Facility

proton, cyclotron, focusing, scattering

416

A. Denker, C.R. Rethfeldt, J.R. Röhrich
HZB, Berlin, Germany
D. Cordini, J. Heufelder, R. Stark, A. Weber
Charite, Berlin, Germany

Since 1998 we treated more then 1500 patients with eye tumors at the HZB cyclotron with a 68 MeV proton beam. The 5 years follow up shows a tumor control rate of more then 96%. The combination of a CT/MRT based planning and excellent physical beam conditions like 2 nA in the scattered proton beam, a 0.94 mm distal dose fall-off and a dose penumbra of 2.1 mm offers the opportunity to keep side effects on a lowest level. However all new medical proton facilities are equipped with accelerators delivering beams of 230 MeV and more. While this is needed for deep seated tumors, a lot of physical and medical compromises have to be accepted for the treatment of shallow seated tumors like eye melanomas. Hence, we suggest a 70 MeV proton therapy facility. It should be equipped with a horizontal beam line and can have optionally a vertical line for more complicated cases under anesthetics or for biological experiments. By the use of PBO Lab and MCNPX beam line concepts and a radio-protecting architecture are designed. In Germany we see a definite need for a single low energy facility which guarantees the excellence of proton therapy for the need of 80 million people.

Slides FRM1CCO05 [1.881 MB]