IPAC2013 - List of Authors (Koubek, B.)

Paper	Title	Page
THPWO008	Status of the 70 MeV FAIR Proton Injector	3773
	G. Clemente, W.A. Barth, R. Bereznov, P. Forck, L. Groening, R. Hollinger, M. Kaiser, A. Krämer, F. Maimone, C. Mühle, J. Pfister, G. Schreiber, J. Trüller, W. Vinzenz, C. Will GSI, Darmstadt, Germany R. M. Brodhage, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede IAP, Frankfurt am Main, Germany N. Chauvin, O. Delferrière CEA/IRFU, Gif-sur-Yvette, France B. Launé, J. Lesrel IPN, Orsay, France C.S. Simon, O. Tuske CEA/DSM/IRFU, France
	Funding: BMBF The FAIR project requires a dedicated proton injector for the creation of high intensity secondary antiproton beams. This machine will be the first high intensity linear accelerator based on CH-DTL. The status of the project, with particular emphasis on the construction of the first RF prototype is presented.

THPWO009	Beam Dynamics Error and Loss Investigation of the FAIR Proton Injector	3776
	G. Clemente, W.A. Barth, P. Forck, L. Groening, R. Hollinger, M. Kaiser, J. Pfister, W. Vinzenz, S.G. Yaramyshev, C. Zhang GSI, Darmstadt, Germany R. M. Brodhage, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede IAP, Frankfurt am Main, Germany N. Chauvin, C.S. Simon, O. Tuske CEA/DSM/IRFU, France O. Delferrière CEA/IRFU, Gif-sur-Yvette, France B. Launé, J. Lesrel IPN, Orsay, France
	The FAIR Proton Linac is a 70mA, 70 MeV. 325 MHz linear accelerator based on CH cavities. The focusing scheme is provided by an asynchronous KONUS lattice period. Random misalignment and rotation errors of the quadrupoles, together with phase and RF settings of the power source plays a major role in beam losses. Those effects are investigated and the beam dynamics results, including several source of errors, are presented and discussed.

THPWO018	Power Tests of the 325 MHz 4-ROD RFQ Prototype	3800
	B. Koubek, H. Podlech, A. Schempp, J.S. Schmidt IAP, Frankfurt am Main, Germany
	For the FAIR project of GSI as part of the proton linac a 325 MHz RFQ with an output energy of 3 MeV is planned. Simulations that have lead to a prototype of a 4-Rod Radio Frequency Quadrupole (RFQ) have been done. The RF parameters have been verified with the prototype. Power tests of this 6 stem copper RFQ should now verify parameters like shunt impedance, electrode voltage and give answers of how much power the structure can sustain.

THPWO020	Simulations on the Boundary Fields of 4-rod RFQ Electrodes	3803
	J.S. Schmidt, B. Koubek, A. Schempp IAP, Frankfurt am Main, Germany
	If the RF design of a 4-rod Radio Frequency Quadrupole (RFQ) is not performed carefully with respect to the boundary fields of its electrodes, it can produce errors compared to beam dynamic simulations. An additional field component can be induced on the beam axis, which influences the properties of the particle beam, like energy per nucleon for example, dramatically. Therefore, the influences of different geometric parameters of 4-rod RFQs on these fields have been studied in detail. The results of these simulations will be presented in this paper.

Paper

Title

Page

Status of the 70 MeV FAIR Proton Injector

3773

G. Clemente, W.A. Barth, R. Bereznov, P. Forck, L. Groening, R. Hollinger, M. Kaiser, A. Krämer, F. Maimone, C. Mühle, J. Pfister, G. Schreiber, J. Trüller, W. Vinzenz, C. Will
GSI, Darmstadt, Germany
R. M. Brodhage, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede
IAP, Frankfurt am Main, Germany
N. Chauvin, O. Delferrière
CEA/IRFU, Gif-sur-Yvette, France
B. Launé, J. Lesrel
IPN, Orsay, France
C.S. Simon, O. Tuske
CEA/DSM/IRFU, France

Funding: BMBF
The FAIR project requires a dedicated proton injector for the creation of high intensity secondary antiproton beams. This machine will be the first high intensity linear accelerator based on CH-DTL. The status of the project, with particular emphasis on the construction of the first RF prototype is presented.

THPWO009

Beam Dynamics Error and Loss Investigation of the FAIR Proton Injector

3776

G. Clemente, W.A. Barth, P. Forck, L. Groening, R. Hollinger, M. Kaiser, J. Pfister, W. Vinzenz, S.G. Yaramyshev, C. Zhang
GSI, Darmstadt, Germany
R. M. Brodhage, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede
IAP, Frankfurt am Main, Germany
N. Chauvin, C.S. Simon, O. Tuske
CEA/DSM/IRFU, France
O. Delferrière
CEA/IRFU, Gif-sur-Yvette, France
B. Launé, J. Lesrel
IPN, Orsay, France

The FAIR Proton Linac is a 70mA, 70 MeV. 325 MHz linear accelerator based on CH cavities. The focusing scheme is provided by an asynchronous KONUS lattice period. Random misalignment and rotation errors of the quadrupoles, together with phase and RF settings of the power source plays a major role in beam losses. Those effects are investigated and the beam dynamics results, including several source of errors, are presented and discussed.

THPWO018

Power Tests of the 325 MHz 4-ROD RFQ Prototype

3800

B. Koubek, H. Podlech, A. Schempp, J.S. Schmidt
IAP, Frankfurt am Main, Germany

For the FAIR project of GSI as part of the proton linac a 325 MHz RFQ with an output energy of 3 MeV is planned. Simulations that have lead to a prototype of a 4-Rod Radio Frequency Quadrupole (RFQ) have been done. The RF parameters have been verified with the prototype. Power tests of this 6 stem copper RFQ should now verify parameters like shunt impedance, electrode voltage and give answers of how much power the structure can sustain.

THPWO020

Simulations on the Boundary Fields of 4-rod RFQ Electrodes

3803

J.S. Schmidt, B. Koubek, A. Schempp
IAP, Frankfurt am Main, Germany

If the RF design of a 4-rod Radio Frequency Quadrupole (RFQ) is not performed carefully with respect to the boundary fields of its electrodes, it can produce errors compared to beam dynamic simulations. An additional field component can be induced on the beam axis, which influences the properties of the particle beam, like energy per nucleon for example, dramatically. Therefore, the influences of different geometric parameters of 4-rod RFQs on these fields have been studied in detail. The results of these simulations will be presented in this paper.