IPAC2014 - List of Authors (Groening, L.)

Paper	Title	Page
THOBA02	Status of the Emittance Transfer Experiment Emtex	2798
	M.T. Maier, L. Groening, C. Mühle, I. Pschorn, P. Rottländer, C. Will, C. Xiao GSI, Darmstadt, Germany M. Chung Fermilab, Batavia, Illinois, USA
	In order to improve the injection efficiency of the round UNILAC heavy ion beam into the asymmetric acceptance of the SIS18 it would be of great advantage to decrease the horizontal emittance by a so called emittance transfer to the vertical plane. In this contribution the present status of the emittance transfer experiment EMTEX at GSI will be reported. A short introduction about the theoretical background of the technique will be given, while the main part is dedicated to the practical solutions setting up a test beam line at GSI. Finally, the results of a first commissioning beam time will be presented. The scheduled beam time to apply the emittance transfer technique foreseen in spring 2014 had to be shifted to calendar week 26 in 2014, just after this conference, as some components have not been delivered in time by the contractor. The results and comparison to the theoretical predictions you may find in later publications.
	Slides THOBA02 [1.928 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THOBA02
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THPME005	Optimization of an IH-cavity based High Energy Heavy-ion Linac at GSI	3214
	A. Orzhekhovskaya, G. Clemente, L. Groening, S. Mickat, B. Schlitt GSI, Darmstadt, Germany
	A new high energy heavy-ion injector (HE-Linac) for the FAIR project was proposed as replacement for the existing post-stripper linac at the GSI UNILAC. Six 10⁸ MHz IH-type drift-tube linac cavities within a total length of about 24 m accelerate the ions (up to U²⁸⁺) from 1.4 MeV/u up to 11.4 MeV/u. Fast pulsed quadrupole triplet lenses are used for transverse focusing in between the IH cavities. The optimization of the HE linac with respect to the emittance growth reduction is investigated.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME005
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THPME006	Straight Injection of an intense Uranium Beam into the GSI High Current RFQ	3217
	H. Vormann, A. Adonin, W.A. Barth, L.A. Dahl, P. Gerhard, L. Groening, R. Hollinger, M.T. Maier, S. Mickat, A. Orzhekhovskaya, C. Xiao, S.G. Yaramyshev GSI, Darmstadt, Germany
	A dedicated high current uranium ion source and LEBT will be built at the GSI High Current Injector (HSI), to fulfil the intensity requirements for FAIR (Facility for Antiproton and Ion Research at Darmstadt). This new injection line will be integrated into the existing complex which already comprises two branches. The new LEBT is designed as a straight injection line without dipole magnet, i.e. without dispersive charge state separation. All uranium charge states, coming from the ion source, are transported to the heavy ion high current GSI-HSI-RFQ. Only the design charge state U⁴⁺ is accelerated to the final RFQ energy. The new LEBT design is based on beam emittance and current measurements behind the existing ion source. Beam dynamics simulations have been performed with the codes TRACE-3D (envelopes), DYNAMION, BEAMPATH and TRACK (multiparticle). The recent layout of the LEBT, as well as the results of beam dynamics studies are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME006
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THPME007	A Virtual Charge State Separator as an Advanced Tool Coupling Measurements and Simulations	3220
	S.G. Yaramyshev, A. Adonin, W.A. Barth, L.A. Dahl, P. Gerhard, L. Groening, R. Hollinger, M.T. Maier, S. Mickat, A. Orzhekhovskaya, H. Vormann GSI, Darmstadt, Germany
	A new Low Energy Beam Transport (LEBT) for multi-charge uranium beam will be built at GSI High Current Injector. All uranium charge states coming from the new ion source will be injected into GSI heavy ion high current HSI-RFQ, but only design ions U⁴⁺ will be accelerated to the final RFQ energy. A detailed knowledge about injected beam- current and -emittance for pure design U⁴⁺ ions is necessary for a proper beam line design commissioning and operation, while the measurements are possible only for a full beam including all charge states. Detailed measurements of beam current and emittance are performed behind the first quadrupole triplet at the beam line. A dedicated algorithm, based on combination of measurements and results of an advanced beam dynamics simulations, provides for an extraction of beam- current and -emittance for only U⁴⁺ component of a beam. The obtained results and final beam dynamics design for the new straight beam line are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME007
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Status of the Emittance Transfer Experiment Emtex

2798

M.T. Maier, L. Groening, C. Mühle, I. Pschorn, P. Rottländer, C. Will, C. Xiao
GSI, Darmstadt, Germany
M. Chung
Fermilab, Batavia, Illinois, USA

In order to improve the injection efficiency of the round UNILAC heavy ion beam into the asymmetric acceptance of the SIS18 it would be of great advantage to decrease the horizontal emittance by a so called emittance transfer to the vertical plane. In this contribution the present status of the emittance transfer experiment EMTEX at GSI will be reported. A short introduction about the theoretical background of the technique will be given, while the main part is dedicated to the practical solutions setting up a test beam line at GSI. Finally, the results of a first commissioning beam time will be presented. The scheduled beam time to apply the emittance transfer technique foreseen in spring 2014 had to be shifted to calendar week 26 in 2014, just after this conference, as some components have not been delivered in time by the contractor. The results and comparison to the theoretical predictions you may find in later publications.

Slides THOBA02 [1.928 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THOBA02

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPME005

Optimization of an IH-cavity based High Energy Heavy-ion Linac at GSI

3214

A. Orzhekhovskaya, G. Clemente, L. Groening, S. Mickat, B. Schlitt
GSI, Darmstadt, Germany

A new high energy heavy-ion injector (HE-Linac) for the FAIR project was proposed as replacement for the existing post-stripper linac at the GSI UNILAC. Six 10⁸ MHz IH-type drift-tube linac cavities within a total length of about 24 m accelerate the ions (up to U²⁸⁺) from 1.4 MeV/u up to 11.4 MeV/u. Fast pulsed quadrupole triplet lenses are used for transverse focusing in between the IH cavities. The optimization of the HE linac with respect to the emittance growth reduction is investigated.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME005

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPME006

Straight Injection of an intense Uranium Beam into the GSI High Current RFQ

3217

H. Vormann, A. Adonin, W.A. Barth, L.A. Dahl, P. Gerhard, L. Groening, R. Hollinger, M.T. Maier, S. Mickat, A. Orzhekhovskaya, C. Xiao, S.G. Yaramyshev
GSI, Darmstadt, Germany

A dedicated high current uranium ion source and LEBT will be built at the GSI High Current Injector (HSI), to fulfil the intensity requirements for FAIR (Facility for Antiproton and Ion Research at Darmstadt). This new injection line will be integrated into the existing complex which already comprises two branches. The new LEBT is designed as a straight injection line without dipole magnet, i.e. without dispersive charge state separation. All uranium charge states, coming from the ion source, are transported to the heavy ion high current GSI-HSI-RFQ. Only the design charge state U⁴⁺ is accelerated to the final RFQ energy. The new LEBT design is based on beam emittance and current measurements behind the existing ion source. Beam dynamics simulations have been performed with the codes TRACE-3D (envelopes), DYNAMION, BEAMPATH and TRACK (multiparticle). The recent layout of the LEBT, as well as the results of beam dynamics studies are presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME006

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPME007

A Virtual Charge State Separator as an Advanced Tool Coupling Measurements and Simulations

3220

S.G. Yaramyshev, A. Adonin, W.A. Barth, L.A. Dahl, P. Gerhard, L. Groening, R. Hollinger, M.T. Maier, S. Mickat, A. Orzhekhovskaya, H. Vormann
GSI, Darmstadt, Germany

A new Low Energy Beam Transport (LEBT) for multi-charge uranium beam will be built at GSI High Current Injector. All uranium charge states coming from the new ion source will be injected into GSI heavy ion high current HSI-RFQ, but only design ions U⁴⁺ will be accelerated to the final RFQ energy. A detailed knowledge about injected beam- current and -emittance for pure design U⁴⁺ ions is necessary for a proper beam line design commissioning and operation, while the measurements are possible only for a full beam including all charge states. Detailed measurements of beam current and emittance are performed behind the first quadrupole triplet at the beam line. A dedicated algorithm, based on combination of measurements and results of an advanced beam dynamics simulations, provides for an extraction of beam- current and -emittance for only U⁴⁺ component of a beam. The obtained results and final beam dynamics design for the new straight beam line are presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME007

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)