Statistical analysis of laser driven protons using a high-repetition-rate tape drive target system

One of the challenges for laser-driven proton beams for many potential applications is their stability and reproducibility. We investigate the stability of the laser driven proton beams through statistical analysis of the data obtained by employing a high repetition rate tape driven target system. T...

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Veröffentlicht in:Physical review. Accelerators and beams 2017-04, Vol.20 (4), p.041301, Article 041301
Hauptverfasser: Noaman-ul-Haq, Muhammad, Ahmed, Hamad, Sokollik, Thomas, Yu, Lule, Liu, Zezhou, Yuan, Xiaohui, Yuan, Fang, Mirzaie, Mohammad, Ge, Xulei, Chen, Liming, Zhang, Jie
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Sprache:eng
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Zusammenfassung:One of the challenges for laser-driven proton beams for many potential applications is their stability and reproducibility. We investigate the stability of the laser driven proton beams through statistical analysis of the data obtained by employing a high repetition rate tape driven target system. The characterization of the target system shows the positioning of the target within ∼15μm in the focal plane of an off-axis parabola, with less than a micron variation in surface flatness. By employing this stable target system, we study the stability of the proton beams driven by ultrashort and intense laser pulses. Protons with maximum energies of ∼6±0.3MeV were accelerated for a large number of laser shots taken at a rate of 0.2 Hz with a stability of less than 5% variations in cutoff energy. The development of high repetition rate target system may provide a platform to understand the dynamics of laser driven proton beams at the rate required for future applications.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.20.041301