Versatile tape-drive target for high-repetition-rate laser-driven proton acceleration
- Imperial College, London (United Kingdom)
- Queen's Univ., Belfast, Northern Ireland (United Kingdom)
- Science and Technology Facilities Council (STFC), Didcot (United Kingdom). Rutherford Appleton Lab. (RAL)
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Alberta, Edmonton, AB (Canada)
- Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic); Czech Technical Univ., Prague (Czech Republic)
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic)
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford Univ., CA (United States)
- Univ. of Strathclyde, Glasgow, Scotland (United Kingdom)
- Queen's Univ., Belfast, Northern Ireland (United Kingdom); Czech Academy of Sciences (CAS), Dolní Břežany (Czech Republic)
- 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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