Abstract
The energy spectra of protons generated by ultra-intense (1020 W cm-2) laser interactions with a preformed plasma of scale length measured by shadowgraphy are presented. The effects of the preformed plasma on the proton beam temperature and the number of protons are evaluated. Two-dimensional EPOCH particle-in-cell code simulations of the proton spectra are found to be in agreement with measurements over a range of experimental parameters.
Original language | English |
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Pages (from-to) | 58-63 |
Number of pages | 6 |
Journal | Laser and Particle Beams |
Volume | 35 |
Issue number | 1 |
Early online date | 22 Dec 2016 |
DOIs | |
Publication status | Published - Mar 2017 |
Externally published | Yes |