• High Power Laser Science and Engineering
  • Vol. 12, Issue 2, 02000e22 (2024)
J. Peñas1, A. Bembibre1, D. Cortina-Gil1, L. Martín2, A. Reija1, C. Ruiz3, M. Seimetz4, A. Alejo1、*, and J. Benlliure1、*
Author Affiliations
  • 1Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
  • 2Laboratorio Láser de Aceleración y Aplicaciones, RIAIDT, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
  • 3Instituto Universitario de Física Fundamental y Matemáticas y Dpto. de Didáctica de la Matemática y de las Ciencias Experimentales, Universidad de Salamanca, Salamanca, Spain
  • 4Instituto de Instrumentación para Imagen Molecular (I3M), CSIC-Universitat Politècnica de València, Valencia, Spain
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    DOI: 10.1017/hpl.2024.13 Cite this Article Set citation alerts
    J. Peñas, A. Bembibre, D. Cortina-Gil, L. Martín, A. Reija, C. Ruiz, M. Seimetz, A. Alejo, J. Benlliure. A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration[J]. High Power Laser Science and Engineering, 2024, 12(2): 02000e22 Copy Citation Text show less

    Abstract

    A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are introduced. The assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets, mounted on a 3D motorized stage to allow rapid replenishment and alignment of the target material between laser irradiations. The automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target, which alongside the purpose-built design of the target wheel, enables operation at rates up to 10 Hz. Stable and continuous laser-driven proton acceleration at 10 Hz is demonstrated, with observed cut-off energy stability about 15%.
    $$\begin{align}{E}_i=\frac{1}{2}{m}_i{\left(\frac{D}{\Delta {t}_i+D/c}\right)}^2,\end{align}$$ ((1))

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    J. Peñas, A. Bembibre, D. Cortina-Gil, L. Martín, A. Reija, C. Ruiz, M. Seimetz, A. Alejo, J. Benlliure. A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration[J]. High Power Laser Science and Engineering, 2024, 12(2): 02000e22
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