Three-dimensional acoustic monitoring of laser-accelerated protons in the focus of a pulsed-power solenoid lens  

作　　者：S.Gerlach F.Balling A.K.Schmidt F.E.Brack F.Kroll J.Metzkes-Ng M.Reimold U.Schramm M.Speicher K.Zeil K.Parodi J.Schreiber 

机构地区：[1]Fakultät für Physik,Ludwig-Maximilians-Universität München,Garching,Germany [2]Helmholtz-Zentrum Dresden-Rossendorf,Dresden,Germany [3]Technische Universität Dresden,Dresden,Germany

出　　处：《High Power Laser Science and Engineering》2023年第3期57-63,共7页高功率激光科学与工程（英文版）

基　　金：supported by the German Research Foundation (DFG) within the Research Training Group GRK 2274;the Bundesministerium für Bildung und Forschung (BMBF) within project 01IS17048;financial support by the BMBF within projects 05P18WMFA1 and 05P21WMFA1

摘　　要：The acoustic pulse emitted from the Bragg peak of a laser-accelerated proton bunch focused into water has recently enabled the reconstruction of the bunch energy distribution.By adding three ultrasonic transducers and implementing a fast data analysis of the filtered raw signals,I-BEAT(Ion-Bunch Energy Acoustic Tracing)3D now provides the mean bunch energy and absolute lateral bunch position in real-time and for individual bunches.Relative changes in energy spread and lateral bunch size can also be monitored.Our experiments at DRACO with proton bunch energies between 10 and 30 MeV reveal sub-MeV and sub-mm resolution.In addition to this 3D bunch information,the signal strength correlates also with the absolute bunch particle number.

关 键 词：ion diagnostics ionoacoustics laser-driven plasma source laser-ion acceleration 

分 类 号：TN249[电子电信—物理电子学]