A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

作     者：J.Pe?as A.Bembibre D.Cortina-Gil L.Martín A.Reija C.Ruiz M.Seimetz A.Alejo J.Benlliure 

作者机构：Instituto Galego de Física de Altas Enerxías Universidade de Santiago de Compostela Laboratorio Láser de Aceleración y Aplicaciones RIAIDT Universidade de Santiago de Compostela Instituto Universitario de Física Fundamental y Matemáticas y Dpto.de Didáctica de la Matemática y de las Ciencias Experimentales Universidad de Salamanca Instituto de Instrumentación para Imagen Molecular (I3M) CSIC-Universitat Politècnica de València 

出 版 物：《High Power Laser Science and Engineering》 (高功率激光科学与工程)

年 卷 期：2024年第2期

页      面：91-98页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the Spanish Ministerio de Ciencia, Innovación y Universidades under grants RTI2018-101578-B-C21, RTI2018-101578-B-C22, FPI predoctorals BES-2017-08917 and PRE2019-090730 Unidad de Excelencia María de Maetzu under project Md M-2016-0692-17-2 the Xunta de Galicia grants GRC ED431C 2017/54 and ED431F2023/21 a grant of the program Grupos de investigación consolidados (CIAICO/2022/008) financed by Generalitat Valenciana Action co-financed by the European Union through the Programa Operativo del Fondo Europeo de Desarrollo Regional (FEDER) of the Comunitat Valenciana 2014– 2020 (IDIFEDER/2021/002) supported by ‘la Caixa’ Foundation (ID 100010434) (fellowship code LCF/BQ/PI20/11760027) grant RYC2021-032654I funded by MICIU/AEI/10.13039/501100011033 ‘European Union Next Generation EU’ 

摘      要：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%.