Development of TOF-spectrometry of laser-accelerated proton pulses using silicon microdosimeters

Authors

M Würl, Ludwig Maximilian University of Munich
F Englbrecht, Ludwig Maximilian University of Munich
S Lehrack, Ludwig Maximilian University of Munich
D Haffa, Ludwig Maximilian University of Munich
C Kreuzer, Ludwig Maximilian University of Munich
F Lindner, Ludwig Maximilian University of Munich
T Rösch, Ludwig Maximilian University of Munich
S Reinhardt, Ludwig Maximilian University of Munich
S Karsch, Ludwig Maximilian University of Munich
W Assmann, Ludwig Maximilian University of Munich
Linh T. Tran, University of WollongongFollow
Marco Petasecca, University of WollongongFollow
Michael L. F Lerch, University of WollongongFollow
J Schreiber, Ludwig Maximilian University of Munich
Anatoly B. Rosenfeld, University of WollongongFollow
Katia Parodi, Ludwig Maximilian University of MunichFollow

RIS ID

118262

Publication Details

Würl, M., Englbrecht, F., Lehrack, S., Haffa, D., Kreuzer, C., Lindner, F. H., Rösch, T. F., Reinhardt, S., Karsch, S., Assmann, W., Tran, L. T., Petasecca, M., Lerch, M., Schreiber, J., Rosenfeld, A. & Parodi, K. (2017). Development of TOF-spectrometry of laser-accelerated proton pulses using silicon microdosimeters. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) United States: IEEE.

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.