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Title: Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration

Journal Article · · High Power Laser Science and Engineering
DOI:https://doi.org/10.1017/hpl.2023.27· OSTI ID:2001102
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  1. Imperial College, London (United Kingdom)
  2. Queen's Univ., Belfast, Northern Ireland (United Kingdom)
  3. Science and Technology Facilities Council (STFC), Didcot (United Kingdom). Rutherford Appleton Lab. (RAL)
  4. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Alberta, Edmonton, AB (Canada)
  5. Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic); Czech Technical Univ., Prague (Czech Republic)
  6. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  7. Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic)
  8. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford Univ., CA (United States)
  9. Univ. of Strathclyde, Glasgow, Scotland (United Kingdom)
  10. Queen's Univ., Belfast, Northern Ireland (United Kingdom); Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic)
  11. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Technische Univ. Darmstadt (Germany)

We present the development and characterization of a high-stability, multi-material, multi-thickness tape-drive target for laser-driven acceleration at repetition rates of up to 100 Hz. The tape surface position was measured to be stable on the sub-micrometre scale, compatible with the high-numerical aperture focusing geometries required to achieve relativistic intensity interactions with the pulse energy available in current multi-Hz and near-future higher repetition-rate lasers ( > kHz). Long-term drift was characterized at 100 Hz demonstrating suitability for operation over extended periods. The target was continuously operated at up to 5 Hz in a recent experiment for 70,000 shots without intervention by the experimental team, with the exception of tape replacement, producing the largest data-set of relativistically intense laser–solid foil measurements to date. This tape drive provides robust targetry for the generation and study of high-repetition-rate ion beams using next-generation high-power laser systems, also enabling wider applications of laser-driven proton sources.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE National Nuclear Security Administration (NNSA); Science and Technology Facilities Council (STFC); National Science Foundation (NSF)
Grant/Contract Number:
AC02-76SF00515; ST/P002021/1; ST/V001639/1; 100182; 1632708; NA0003960
OSTI ID:
2001102
Journal Information:
High Power Laser Science and Engineering, Vol. 11; ISSN 2095-4719
Publisher:
Cambridge University PressCopyright Statement
Country of Publication:
United States
Language:
English

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