IPAC2011 - List of Authors (Abs, M.)

Paper	Title	Page
MOPC135	IFMIF-EVEDA RF Power System	394
	D. Regidor, A. Arriaga, J.C. Calvo, A. Ibarra, I. Kirpitchev, J. Molla, P. Méndez, A. Salom, M. Weber CIEMAT, Madrid, Spain M. Abs, B. Nactergal IBA, Louvain-la-Neuve, Belgium P.-Y. Beauvais, M. Desmons, A. Mosnier CEA/DSM/IRFU, France P. Cara Fusion for Energy, Garching, Germany S.J. Ceballos, J. de la Cruz Greenpower Technologies, Sevilla, Spain Z. Cvetkovic, Z. Golubicic, C. Mendez TTI, Santander, Spain J.M. Forteza, J.M. González, C.R. Isnardi Indra Sistemas, San Fernando de Henares, Spain D. Vandeplassche SCK-CEN, Mol, Belgium
	The IFMIF/EVEDA Accelerator Prototype will be a 9 MeV, 125 mA CW deuteron accelerator to validate the technical options for the IFMIF accelerator design. The Radiofrequency Quadrupole (RFQ), buncher cavities and Superconducting Radiofrequency Linac (SRF Linac) require continuous wave RF power at 175 MHz with an accuracy of ±1% in amplitude and ±1° in phase. Also the IFMIF/EVEDA RF Power System has to work under pulsed mode operation (during the accelerator commissioning). The IFMIF/EVEDA RF Power System is composed of 18 RF power generators feeding the eight RFQ couplers (200 kW), the two buncher cavities (10⁵ kW) and the eight superconducting half wave resonators of the SRF Linac (10⁵ kW). The main components of each RF power chain are the Low Level Radio Frequency system (LLRF), three amplification stages and a circulator with its load. For obvious standardization and scale economies reasons, the same topology has been chosen for the 18 RF power chains: all of them use the same main components which can be individually tuned to provide different RF output powers up to 200 kW. The studies and the current design of the IFMIF/EVEDA RF Power System are presented in this contribution.

WEPS085	Deveopment of the IBA-JINR Cyclotron C235-V3 for Dmitrovgrad Hospital Center of the Proton Therapy	2706
	E. Syresin, G.A. Karamysheva, M.Y. Kazarinov, S.A. Kostromin, N.A. Morozov, A.G. Olshevsky, V.M. Romanov, E. Samsonov, N.G. Shakun, G. Shirkov, S.G. Shirkov JINR, Dubna, Moscow Region, Russia M. Abs, A. Blondin, P. Cahay, Y. Jongen, W.J.G.M. Kleeven, S. Zaremba IBA, Louvain-la-Neuve, Belgium
	The approval of the Dmitrovgrad project - the first Russian hospital center of the proton therapy was announced in 2010. The JINR-IBA collaboration have developed and constructed the proton cyclotron C235-V3 for this center. We plan to assemble this cyclotron in JINR in 2011 and perform tests with the extracted proton beam in 2012. This cyclotron is an essentially modified version of IBA C235 cyclotron. Modification of the extraction system is aim of new C235-V3 cyclotron. The new extraction system was constructed and tested. The experimentally measured extraction efficiency was improved from 60% for the old system to 77% for the new one. The new field mapping system was developed for the C235-V3 cyclotron. It system consists of the axial field mapping system and an additional system applied for radial field Br measurements. One of the goals of the cyclotron improvement is the modification of the sector spiral angle for reducing of coherent beam losses at acceleration. The coherent beam displacement from the median plane is defined by the vertical betatron tune Qz. An increase of the vertical betatron tune permits to reduce the coherent losses at proton acceleration.

Paper

Title

Page

IFMIF-EVEDA RF Power System

394

D. Regidor, A. Arriaga, J.C. Calvo, A. Ibarra, I. Kirpitchev, J. Molla, P. Méndez, A. Salom, M. Weber
CIEMAT, Madrid, Spain
M. Abs, B. Nactergal
IBA, Louvain-la-Neuve, Belgium
P.-Y. Beauvais, M. Desmons, A. Mosnier
CEA/DSM/IRFU, France
P. Cara
Fusion for Energy, Garching, Germany
S.J. Ceballos, J. de la Cruz
Greenpower Technologies, Sevilla, Spain
Z. Cvetkovic, Z. Golubicic, C. Mendez
TTI, Santander, Spain
J.M. Forteza, J.M. González, C.R. Isnardi
Indra Sistemas, San Fernando de Henares, Spain
D. Vandeplassche
SCK-CEN, Mol, Belgium

The IFMIF/EVEDA Accelerator Prototype will be a 9 MeV, 125 mA CW deuteron accelerator to validate the technical options for the IFMIF accelerator design. The Radiofrequency Quadrupole (RFQ), buncher cavities and Superconducting Radiofrequency Linac (SRF Linac) require continuous wave RF power at 175 MHz with an accuracy of ±1% in amplitude and ±1° in phase. Also the IFMIF/EVEDA RF Power System has to work under pulsed mode operation (during the accelerator commissioning). The IFMIF/EVEDA RF Power System is composed of 18 RF power generators feeding the eight RFQ couplers (200 kW), the two buncher cavities (10⁵ kW) and the eight superconducting half wave resonators of the SRF Linac (10⁵ kW). The main components of each RF power chain are the Low Level Radio Frequency system (LLRF), three amplification stages and a circulator with its load. For obvious standardization and scale economies reasons, the same topology has been chosen for the 18 RF power chains: all of them use the same main components which can be individually tuned to provide different RF output powers up to 200 kW. The studies and the current design of the IFMIF/EVEDA RF Power System are presented in this contribution.

WEPS085

Deveopment of the IBA-JINR Cyclotron C235-V3 for Dmitrovgrad Hospital Center of the Proton Therapy

2706

E. Syresin, G.A. Karamysheva, M.Y. Kazarinov, S.A. Kostromin, N.A. Morozov, A.G. Olshevsky, V.M. Romanov, E. Samsonov, N.G. Shakun, G. Shirkov, S.G. Shirkov
JINR, Dubna, Moscow Region, Russia
M. Abs, A. Blondin, P. Cahay, Y. Jongen, W.J.G.M. Kleeven, S. Zaremba
IBA, Louvain-la-Neuve, Belgium

The approval of the Dmitrovgrad project - the first Russian hospital center of the proton therapy was announced in 2010. The JINR-IBA collaboration have developed and constructed the proton cyclotron C235-V3 for this center. We plan to assemble this cyclotron in JINR in 2011 and perform tests with the extracted proton beam in 2012. This cyclotron is an essentially modified version of IBA C235 cyclotron. Modification of the extraction system is aim of new C235-V3 cyclotron. The new extraction system was constructed and tested. The experimentally measured extraction efficiency was improved from 60% for the old system to 77% for the new one. The new field mapping system was developed for the C235-V3 cyclotron. It system consists of the axial field mapping system and an additional system applied for radial field Br measurements. One of the goals of the cyclotron improvement is the modification of the sector spiral angle for reducing of coherent beam losses at acceleration. The coherent beam displacement from the median plane is defined by the vertical betatron tune Qz. An increase of the vertical betatron tune permits to reduce the coherent losses at proton acceleration.