Accelerator plans at GSI for plasma physics applications

Spiller, P.; Blasche, K.; Franczak, B.; Kirk, M.; Hülsmann, P.; Omet, C.; Ratschow, S.; Stadlmann, J.

doi:10.1016/j.nima.2005.01.289

Cited by 19 publications

(11 citation statements)

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“…These materials are considered for the facility for antiproton and ion research (FAIR) RF-cavities [2]. Finemet (Fe 74 Cu 1 Nb 3 Si 16 B 6 ) was irradiated by 110 keV N and 593 MeV Au ions.…”

Section: Methodsmentioning

confidence: 99%

Ion Irradiation Studies of Soft Magnetic Metallic Glasses

et al. 2010

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Finemet and Vitrovac• R 6025 metallic glasses were irradiated by light (N) and heavy (Au and Ta) ions at different energies from 110 keV to 250 MeV/u (MeV per mass unit) and fluences from 1 × 10 11 ions/cm 2 to 1 × 10 17 ions/cm 2 . They were analysed by the Mössbauer spectrometry and magnetic susceptibility measurements. Qualitative differences were observed between the radiation effects caused by light and heavy ions.

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Section: Methodsmentioning

confidence: 99%

Ion Irradiation Studies of Soft Magnetic Metallic Glasses

et al. 2010

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“…As the principal method of investigation we use Mössbauer spectroscopy. This system is a good candidate of an amorphous alloy which is supposed to be used in the FAIR (Facility for Antiproton and Ion Research) accelerator complex [8].…”

Section: Introductionmentioning

confidence: 99%

Ion bombardment of Fe-based amorphous metallic alloys

2009

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Fe 74 Cu 1 Nb 3 Si 16 B 6 amorphous metallic alloy is investigated after ion irradiation by 110 keV N + and 593 MeV Au ions. The depth-profiles of the radiation damage were calculated by the SRIM2008 code. Applicability of transmission and conversion electron Mössbauer effect measurements to distinguish between the bulk and surface radiation damage is demonstrated by using different irradiation conditions. The investigated alloy is characterized by ferromagnetic interactions. The implantation does not depict appreciable changes of the samples' surfaces. Changes in chemical short-range order (SRO) are revealed in N + irradiated alloys. Heavy Au ions caused pronounced effects in the position of the net magnetization though no impact on SRO was observed. After annealing, structural relaxation and annealingout of the irradiation-induced stresses caused the rotation of the net magnetization back to its original position.

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“…This type of RF cavity is going to be installed also at Facility for Antiproton and Ion *Corresponding author: marius.pavlovic@stuba.sk Research accelerators in Darmstadt, Germany (1,2). In this particular application, the metallic glasses will be exposed to ion and neutron radiation that may alter their magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Radiation damage studies of soft magnetic metallic glasses irradiated with high-energy heavy ions

Pavlovič

Miglierini

Мустафин

et al. 2015

Radiation Effects and Defects in Solids

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Some soft magnetic metallic glasses are considered for use in magnetic cores of accelerator radio frequency cavities. Due to losses of the circulating ion beam, they may be exposed to irradiation by different ions at different energies. This paper presents data and review results of irradiation experiments concerning the influence of high-energy heavy ions on magnetic susceptibility of VITROPERM ® -type metallic glasses. Samples of the VITROPERM ® magnetic ribbons were irradiated by Au, Xe and U ions at 11.1 MeV/A (per nucleon) and 5.9 MeV/A, respectively. Irradiation fluences from 1 × 10 11 up to 1 × 10 13 ions/cm 2 were applied. In case of the Au and U ions, the total fluence was accumulated in one beamtime, whereas two separate beamtimes were used to accumulate the final fluence in case of the Xe ions. Relative change in the samples' magnetic susceptibility after and before irradiation was evaluated as a function of the irradiation fluence. The irradiation experiments were performed with the UNILAC accelerator at GSI Helmholtzzentrum für Schwerionenforschung GmbH. They were simulated in SRIM2010 in order to obtain ionization densities (electronic stopping, dE/dx) and dpa (displacements per atom) caused by the ion beams in the sample material. This paper focuses mainly on the results collected in experiments with the Xe ions and compares them with data obtained in earlier experiments using Au and U ions. Radiation hardness of VITROPERM ® is compared with radiation hardness of VITROVAC ® that was studied in previous experiments. The VITROPERM ® samples showed less drop in magnetic susceptibility in comparison with the VITROVAC ® ones, and this drop occurred at higher fluences. This indicates higher radiation hardness of VITROPERM ® compared with VITROVAC ® . In addition, heavier ions cause bigger change in magnetic susceptibility than the lighter ones. The effect can be roughly scaled with electronic stopping, which suggests that the main mechanism of radiation damage is associated with swift electrons generated in the material via ionization by primary heavy ions.

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Accelerator plans at GSI for plasma physics applications

Cited by 19 publications

References 0 publications

Ion Irradiation Studies of Soft Magnetic Metallic Glasses

Ion Irradiation Studies of Soft Magnetic Metallic Glasses

Ion bombardment of Fe-based amorphous metallic alloys

Radiation damage studies of soft magnetic metallic glasses irradiated with high-energy heavy ions

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