Upgrade program of the high current heavy ion UNILAC as an injector for FAIR

Barth, W.; Bayer, Wolfgang; Dahl, L.; Groening, L.; Richter, Silke; Yaramyshev, Stepan

doi:10.1016/j.nima.2007.02.054

Cited by 45 publications

(12 citation statements)

References 3 publications

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“…All measurements were performed at GSI Helmholtzzentrum für Schwerionenforschung GmbH, Germany. A 4.77 meV/u gold beam was delivered by the UNILAC 5 , 12 , 13 accelerator to the microbeam experiment setup. Details of the system forming a heavy ion microbeam in GSI is described by Fischer et al 5 .…”

Section: Methodsmentioning

confidence: 99%

An investigation of secondary electron emission from ZnO based nanomaterials for future applications in radiation detectors

Boutachkov

Voss

Lee

et al. 2021

Sci Rep

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This paper discusses the use of nanomaterials for the improved performance of time-of-flight particle detectors based on secondary electron emission (SEE). The purpose of the research presented in this paper is to find a nanomaterial that has a higher SEE than gold. In this article, we present a measurement of the SEE properties from 1D (one-dimensional) nanostructures of ZnO and ZnO/GaN (ZnO with GaN coating) composed of a mostly regular pattern of nanotubes grown on a thin Si3N4 substrate. The study was performed with 4.77 meV/u Au beam. We observed an average increase of 2.5 in the SEE properties from the 1D ZnO nanotubes compared to gold.

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Section: Methodsmentioning

confidence: 99%

An investigation of secondary electron emission from ZnO based nanomaterials for future applications in radiation detectors

Boutachkov

Voss

Lee

et al. 2021

Sci Rep

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“…In the context of an advanced machine investigation program [16][17][18] in combination with the ongoing UNILAC upgrade program, a new uranium beam intensity record (11.5 emA, U 29+ ) at very high beam brilliance was achieved recently in a machine experiment campaign. This is an important step paving the way to fulfill the FAIR heavy ion high intensity beam requirements.…”

Section: Status Of the Unilac High Current Performancementioning

confidence: 99%

A superconducting CW-LINAC for heavy ion acceleration at GSI

et al. 2017

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Abstract.Recently the Universal Linear Accelerator (UNILAC) serves as a powerful high duty factor (25%) heavy ion beam accelerator for the ambitious experiment program at GSI. Beam time availability for SHE (Super Heavy Element)-research will be decreased due to the limitation of the UNILAC providing Uranium beams with an extremely high peak current for FAIR simultaneously. To keep the GSI-SHE program competitive on a high level and even beyond, a standalone superconducting continuous wave (100% duty factor) LINAC in combination with the upgraded GSI High Charge State injector is envisaged. In preparation for this, the first LINAC section (financed by HIM and GSI) will be tested with beam in 2017, demonstrating the future experimental capabilities. Further on the construction of an extended cryo module comprising two shorter Crossbar-H cavities is foreseen to test until end of 2017. As a final R&D step towards an entire LINAC three advanced cryo modules, each comprising two CH cavities, should be built until 2019, serving for first user experiments at the Coulomb barrier.

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“…All uranium charge states coming from the new ion source will be injected into HSI RFQ, but only design ions U 4þ will be accelerated to the final RFQ energy of 120 keV=u [6].…”

Section: High Current Heavy Ion Unilacmentioning

confidence: 99%

Virtual charge state separator as an advanced tool coupling measurements and simulations

Yaramyshev

Vormann

Adonin

et al. 2015

Phys. Rev. ST Accel. Beams

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A new low energy beam transport for a multicharge uranium beam will be built at the GSI High Current Injector (HSI). All uranium charge states coming from the new ion source will be injected into GSI heavy ion high current HSI Radio Frequency Quadrupole (RFQ), but only the design ions U 4þ will be accelerated to the final RFQ energy. A detailed knowledge about injected beam current and emittance for pure design U 4þ ions is necessary for a proper beam line design commissioning and operation, while measurements are possible only for a full beam including all charge states. Detailed measurements of the beam current and emittance are performed behind the first quadrupole triplet of the beam line. A dedicated algorithm, based on a combination of measurements and the results of advanced beam dynamics simulations, provides for an extraction of beam current and emittance values for only the U 4þ component of the beam. The proposed methods and obtained results are presented.

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Upgrade program of the high current heavy ion UNILAC as an injector for FAIR

Cited by 45 publications

References 3 publications

An investigation of secondary electron emission from ZnO based nanomaterials for future applications in radiation detectors

An investigation of secondary electron emission from ZnO based nanomaterials for future applications in radiation detectors

A superconducting CW-LINAC for heavy ion acceleration at GSI

Virtual charge state separator as an advanced tool coupling measurements and simulations

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