Heavy-ion microbeam system for cell irradiation at Kyoto University

We have developed a heavy-ion microbeam system for cell irradiation that uses an 8-MV tandem Van de Graaff accelerator at Kyoto University. Using a pair of apertures as the final collimator, microbeams of carbon, fluorine, and silicon were extracted to the atmosphere with few background particles. W...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2011-12, Vol.269 (24), p.3153-3157
Main Authors: Nakamura, M., Imai, K., Hirose, M., Matsumoto, H., Tosaki, M., Ohsawa, D., Makino, S.
Format: Article
Language:English
Subjects:
Apertures
Background radiation
Beams (radiation)
Carbon
Cell irradiation
Chromium
Detectors
Heavy ion
Irradiation
Microbeam
Microorganisms
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Summary:We have developed a heavy-ion microbeam system for cell irradiation that uses an 8-MV tandem Van de Graaff accelerator at Kyoto University. Using a pair of apertures as the final collimator, microbeams of carbon, fluorine, and silicon were extracted to the atmosphere with few background particles. We used a thin transmission scintillator and a photomultiplier detector to accurately measure the number of extracted particles. To examine beam spreading, the beam profile was measured by observing tracks of an irradiated CR-39 track detector. The two disks with holes which were added to the collimating apertures reduced background radiation due to secondary X-rays and electrons from the apertures.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2011.04.101