Ion bursts and multi-electron population in expanding laser-produced plasma

We present an experimental study of emission of relativistic electrons, fast ions and DD-fusion neutrons produced by interaction of sub-nanosecond laser radiation with solid targets performed at the PALS facility. Measurements of electron density close to the target surface using the femtosecond int...

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Bibliographic Details
Published inJournal of instrumentation Vol. 15; no. 5; p. C05046
Main Authors Krása, J., Klír, D., Krupka, M., Cikhardt, J., Pfeifer, M., Pisarczyk, T., Dostál, J., Řezáč, K., Dudžák, R., Burian, T., Rusiniak, Z., Chodukowski, T., Krůs, M., Kálal, M.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2020
Subjects
Bursts
Deuteration
Distribution functions
Electron density
Emission analysis
Energy distribution
Hot electrons
Lasers
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Summary:We present an experimental study of emission of relativistic electrons, fast ions and DD-fusion neutrons produced by interaction of sub-nanosecond laser radiation with solid targets performed at the PALS facility. Measurements of electron density close to the target surface using the femtosecond interferometry, energy distribution functions of hot electrons far from the target, and time-of-flight spectra of ions are performed. A multi population of electrons is formed as the laser interaction with plasma proceeds. Ions accelerated by hot electrons to MeV energy are emitted in bursts. The neutron yield from the deuterated target is compared to yields obtained from other experiments. Constraint of non-linear processes on the ion acceleration and resulting neutron yields is shown.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/15/05/C05046