At the Tip of an MeV Beam: Provoking Cells and Performing Tomographic Imaging

• Authors: J. Pallon , N. Arteaga-Marrero , Ch. Nilsson , M. Elfman , P. Kristiansson , C. Nilsson , M. Wegdén , M. Olsson , B. Åkerström
• Languages of publication: EN

Abstracts

EN

Biological applications of ion beams have recently become a new important research field using single ion hit facilities to study individual living cells and their response to the hit of a counted number of ions. One motivation is the search for a better understanding of the fundamental processes taking place in cells and organs as a result of irradiation. Another comes from the increasing interest in using high energy protons and heavy ions as a modality for radiotherapy of deep seated tumours. In the view of treatment efficiency, study of cell culture behaviour under controlled radiation experiments, and in different chemical environments at single ion hit facilities, is a first step towards a better understanding of the processes. Tomographic techniques are applicable to situations where you need information of the inside of an object but do not want to section it into thin slices or cannot do it. Using focused MeV ion beams for tomography restricts the sample size to the order of 10-100 μm, depending of the initial energy. On the other hand, the ability to focus at a sub-micrometer level makes ion beams well suited for analyses of small sized objects as cells, spores, etc. The scanning transmission ion microscopy mode of tomography gives the mass density and corresponding morphological structure of holes and pores. It can then be used to correct the results from the other mode, particle induced X-ray emission tomography. Here is discussed a porosity analysis of bentonite clay that is planned to form an important buffer zone around canisters filled with spent nuclear reactor fuel waste deposited 500 m underground in Sweden.

Keywords

EN

07.79.-v; 29.40.Wk; 87.53.-j; 87.53.Ay; 25.40.Cm; 29.30.Ep; 29.30.Kv; 61.43.Gt

Discipline

• 87.53.Ay: Biophysical mechanisms of interaction
• 29.30.Kv: X- and γ-ray spectroscopy
• 87.53.-j: Effects of ionizing radiation on biological systems
• 29.30.Ep: Charged-particle spectroscopy
• 25.40.Cm: Elastic proton scattering
• 61.43.Gt: Powders, porous materials
• 07.79.-v: Scanning probe microscopes and components(see also 68.37.-d Microscopy of surfaces, interfaces, and thin films)
• 29.40.Wk: Solid-state detectors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 2
• Pages: 501-506

Dates

published

2009-02

Contributors

author

J. Pallon

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

N. Arteaga-Marrero

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

Ch. Nilsson

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

M. Elfman

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

P. Kristiansson

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

C. Nilsson

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

M. Wegdén

• Division of Nuclear Physics, Physics Department, Lund University, Professorsgatan 1, P.O. Box 118, 221 00 Lund, Sweden

author

M. Olsson

• Clinical and Experimental Infection Medicine (BMC), Sölvegatan 19, B14, SE-221 84, Lund, Sweden

author

B. Åkerström

• Clinical and Experimental Infection Medicine (BMC), Sölvegatan 19, B14, SE-221 84, Lund, Sweden

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Identifiers

DOI

10.12693/APhysPolA.115.501