Development of TOF-Spectrometry of Laser-Accelerated Proton Pulses using Silicon Microdosimeters

M. Würl; F. Englbrecht; S. Lehrack; D. Haffa; C. Kreuzer; F. H. Lindner; T. F. Rösch; S. Reinhardt; S. Karsch; S. Karsch; W. Assmann; L. T. Tran; M. Petasecca; M. Lerch; J. Schreiber; J. Schreiber; A. Rosenfeld; K. Parodi

2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
(Optica Publishing Group, 2017),
paper JSIII_3_3

Development of TOF-Spectrometry of Laser-Accelerated Proton Pulses using Silicon Microdosimeters

M. Würl, F. Englbrecht, S. Lehrack, D. Haffa, C. Kreuzer, F. H. Lindner, T. F. Rösch, S. Reinhardt, S. Karsch, W. Assmann, L. T. Tran, M. Petasecca, M. Lerch, J. Schreiber, A. Rosenfeld, and K. Parodi

The European Conference on Lasers and Electro-Optics 2017

Munich Germany
25–29 June 2017
ISBN: 978-1-5090-6736-7

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Cancer Therapy (JSIII_3)

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M. Würl, F. Englbrecht, S. Lehrack, D. Haffa, C. Kreuzer, F. H. Lindner, T. F. Rösch, S. Reinhardt, S. Karsch, W. Assmann, L. T. Tran, M. Petasecca, M. Lerch, J. Schreiber, A. Rosenfeld, and K. Parodi, "Development of TOF-Spectrometry of Laser-Accelerated Proton Pulses using Silicon Microdosimeters," in 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference, (Optica Publishing Group, 2017), paper JSIII_3_3.

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Abstract

With the continuous advances in the development of high-intensity lasers, laser-driven ion acceleration may become a compact alternative to produce ions with energies suitable for medical applications [1]. However, the unique properties of laser-accelerated ions, such as the mixed radiation field, a broad energy spectrum of up to 100% energy spread and ion fluxes exceeding 10⁷ protons / cm² / ns are a challenge for electronic detectors. Due to relatively large shot-to-shot fluctuations in the energy spectrum, a non-destructive characterization of each ion bunch is necessary for reliable biomedical applications. Our approach to obtain the spectra exploits the time-of-flight (TOF) difference of ions with different kinetic energies, which requires fast and sensitive detectors.

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