Ion irradiation studies of construction materials for high-power accelerators

Мустафин, Е. С.; Seidl, Tim; Plotnikov, A. B.; Strasik, I.; Pavlovič, Márius; Miglierini, Marcel; Stanček, S.; Fertman, A.; Lančok, Adriana

doi:10.1080/10420150902949894

Cited by 17 publications

(10 citation statements)

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“…The projectile fragmentation is well pronounced especially in case of heavy primary ions, nevertheless, even in such a case, the contribution of projectile fragments to the total residual activity is negligible [5,6,19].…”

Section: Thick Target and Depth Profiling Of The Partial Residual Actmentioning

confidence: 97%

Activation of aluminum by argon: Experimental study and simulations

Chetvertkova

Strasik

Belousov

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

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Section: Thick Target and Depth Profiling Of The Partial Residual Actmentioning

confidence: 97%

Activation of aluminum by argon: Experimental study and simulations

Chetvertkova

Strasik

Belousov

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

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“…Such effect has been observed also for other materials (e.g. Kapton or G11CR-type glass fibre reinforced plastic composites), as reported in our previous work (4). Heavy ions can be used to simulate damage caused by long-term exposure in mixed radiation fields containing also neutrons (5).…”

Section: Introductionmentioning

confidence: 80%

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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“…The influence of the 100 MeV=u interaction threshold of FLUKA was studied by comparing the results of the FLUKA simulations with the results of simulations obtained by means of an independent Monte Carlo particle transport code. We used the SHIELD code [33][34][35] to calculate residual activity induced in the beam pipe and in the bulky target under the same irradiation conditions as assumed in the FLUKA simulations. The SHIELD code does not cut the inelastic interactions at 100 MeV=u and takes into account production of radioactive nuclides by primary ions with energies down to zero.…”

Section: Discussionmentioning

confidence: 99%

Residual activity induced by heavy ions and beam-loss criteria for heavy-ion accelerators

Strasik

Мустафин

Pavlovič³

2010

Phys. Rev. ST Accel. Beams

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The paper presents results of FLUKA simulations of the residual activity induced by heavy ions in two target configurations representing: (1) a beam pipe of an accelerator and (2) a bulky accelerator structure like a magnet yoke or a coil. The target materials were stainless steel and copper representing the most common construction materials used for basic accelerator components. For these two materials, the inventory of the induced isotopes depends mainly on the target material and much less on the projectile species. Time evolution of the induced activity can be described by means of a generic curve that is independent from the projectile mass. Dependence of the induced residual activity on selected ion beam parameters was studied. The main goal of the study was establishing a scaling law expanding the existing proton beam-loss tolerance to heavy-ion beams. This scaling law enables specifying beam-loss criteria for projectile species from proton up to uranium at energies from 200 MeV=u up to 1 GeV=u.

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Ion irradiation studies of construction materials for high-power accelerators

Cited by 17 publications

References 0 publications

Activation of aluminum by argon: Experimental study and simulations

Activation of aluminum by argon: Experimental study and simulations

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

Residual activity induced by heavy ions and beam-loss criteria for heavy-ion accelerators

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