Design of a focusing high-energy heavy ion microbeam system at the JAERI AVF cyclotron

Oikawa, Masakazu; Kamiya, Toshio; Fukuda, Mitsuhiro; Okumura, Susumu; Inoue, Hitoshi; Masuno, Shinichiro; Umemiya, S.; Oshiyama, Y.; Taira, Yoshitaka

doi:10.1016/s0168-583x(03)01007-3

Cited by 29 publications

(10 citation statements)

References 5 publications

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“…The focusing heavy-ion microbeam system generates a beam spot using a magnetic lens. The details of the beam optics have already reported elsewhere [43][44][45] and it is therefore only described in brief. The heavy-ion beam from the AVF cyclotron was introduced into the HX1 vertical beam line with a ninety degrees bending magnet.…”

Section: System Outlinementioning

confidence: 99%

Heavy-Ion Microbeams for Biological Science: Development of System and Utilization for Biological Experiments in QST-Takasaki

Funayama

2019

QuBS

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Target irradiation of biological material with a heavy-ion microbeam is a useful means to analyze the mechanisms underlying the effects of heavy-ion irradiation on cells and individuals. At QST-Takasaki, there are two heavy-ion microbeam systems, one using beam collimation and the other beam focusing. They are installed on the vertical beam lines of the azimuthally-varying-field cyclotron of the TIARA facility for analyzing heavy-ion radiation effects on biological samples. The collimating heavy-ion microbeam system is used in a wide range of biological research not only in regard to cultured cells but also small individuals, such as silkworms, nematode C. elegans, and medaka fish. The focusing microbeam system was designed and developed to perform more precise target irradiation that cannot be achieved through collimation. This review describes recent updates of the collimating heavy ion microbeam system and the research performed using it. In addition, a brief outline of the focusing microbeam system and current development status is described.

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Section: System Outlinementioning

confidence: 99%

Heavy-Ion Microbeams for Biological Science: Development of System and Utilization for Biological Experiments in QST-Takasaki

Funayama

2019

QuBS

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“…The energy of the accelerated ions, modulated with the electric field, is the implantation energy and its values are in the range from electron volts to mega-electron volts. The * corresponding author; e-mail: Saharrezaee593@iauksh.ac.ir target material properties are changed according to the nature, quantity, and energy of the ions providing various applications [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Improving the Corrosion Resistance of Ni/SS Thin Films by Nitrogen Ion Implantation

et al. 2019

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N + ions were incorporated into nickel-coated 316 stainless steel (SS) at room temperature using different energies (10, 20, and 50 keV) and a fluence of 5 × 10 17 N + cm −2. The microstructure, surface morphology, and corrosion inhibition of the obtained materials were investigated and compared with the properties of the untreated steel using several analytical techniques. The X-ray diffraction patterns indicated the formation of nickel nitride with the ion implantation process. The surface morphology of the samples was studied by atomic force microscopy and statistical and multifractal analytical methods. Moreover, the potentiodynamic polarization test in 3.5% NaCl solution was carried out to evaluate the corrosion properties of the samples. These studies revealed that the generalized fractal dimension, Dq, is dependent on the ion implantation energy and the symmetry of the multifractal singularity spectra, f (α), which is related to the uniformity of the sample. In this manner, the lowest value was obtained for the sample prepared with the maximum ion implantation energy. Also, the increment of the implantation energy yields to increase the corrosion resistance. The simultaneous decrease of the corrosion current density (Icorr) and the increase of the corrosion potential observed with the N + ion-implantation indicate that treated samples are more resistant to corrosion than the untreated steel, and the highest corrosion protection was observed for the maximum implantation energy (50 keV). The correlation between corrosion resistance, structural and surface morphology induced by implantation is discussed.

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“…There are two configurations: microbeams and broad beams. On the one hand, micro/nano-beams allow the irradiation of a selected cell, or a portion of a cell, with a precise number of ions [9][10][11][12][13][14][15][16]. However, microbeam installation requires tedious developments for cell recognition, alignment and beam scanning.…”

Section: Introductionmentioning

confidence: 99%

In vitro irradiation station for broad beam radiobiological experiments

Wéra¹,

Riquier²,

Heuskin³

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

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Design of a focusing high-energy heavy ion microbeam system at the JAERI AVF cyclotron

Cited by 29 publications

References 5 publications

Heavy-Ion Microbeams for Biological Science: Development of System and Utilization for Biological Experiments in QST-Takasaki

Heavy-Ion Microbeams for Biological Science: Development of System and Utilization for Biological Experiments in QST-Takasaki

Improving the Corrosion Resistance of Ni/SS Thin Films by Nitrogen Ion Implantation

In vitro irradiation station for broad beam radiobiological experiments

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