Year: 2025
Type: article
Abstract: The results of laser acceleration of protons from aluminum targets 6 μm thick and ultra-thin diamond-like carbon films 100 nm thick when they are irradiated with femtosecond laser pulses with a peak intensity of up to 5 × 10 20 W/cm 2 are presented. It is shown that decreasing the target thickness from 6 μm to 100 nm does not lead to a significant change in the maximum proton energies, but contributes to an increase in the angular yield and the laser energy conversion coefficient. This effect is due to an increase in the number of protons in the low-energy part of the spectra, which is reflected in a twofold increase in the conversion coefficient.
Source: Plasma Physics Reports
Authors: A. A. Bushukhin, K. V. Safronov, S. A. Gorokhov, V. A. Flegentov, D. O. Zamuraev, A. L. Shamraev, S. F. Kovaleva, N. A. Fedorov, A. V. Potapov
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4409538823