First demonstration of multi-MeV proton acceleration from a cryogenic hydrogen ribbon target
Abstract
We show efficient laser driven proton acceleration up to 14 MeV from a 62 μm thick cryogenic hydrogen ribbon. Pulses of the short pulse laser ELFIE at LULI with a pulse length of ≈350 fs at an energy of 8 J per pulse are directed onto the target. The results are compared to proton spectra from metal and plastic foils with different thicknesses and show a similarly good performance both in maximum energy as well as in proton number. Thus, this target type is a promising candidate for experiments with high repetition rate laser systems.
- Publication:
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Plasma Physics and Controlled Fusion
- Pub Date:
- April 2018
- DOI:
- 10.1088/1361-6587/aaae38
- arXiv:
- arXiv:1901.01705
- Bibcode:
- 2018PPCF...60d4010K
- Keywords:
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- Physics - Plasma Physics
- E-Print:
- 9 pages