On-line monitoring of fluence distributions and imaging of scanning ion beams

Abstract : In this paper we describe the design of an ion beam monitor developed to control irradiations of biological samples with ions at GANIL (Grand Accélérateur National d'Ions Lourds). This device can be used as an on-line monitor to provide transverse fluence distributions for active scanning ion irradiations. It can also be used as an interceptive beam imager to provide beam profiles or fluence depth distributions. A prototype of the monitor has been tested at GANIL with five different ion beams, having intensities from 104 to 109ions per second. Real time transverse fluence distributions have been obtained with a 1mm spatial resolution.
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C. Pautard, E. Balanzat, G. Ban, E. Batin, B. Carniol, et al.. On-line monitoring of fluence distributions and imaging of scanning ion beams. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2008, 588, pp.448-456. ⟨10.1016/j.nima.2008.01.098⟩. ⟨in2p3-00258718⟩

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