X-Rays emission by high-intensity pulsed lasers irradiating thin foils at PALS laboratory

0532287 - ÚJF 2021 RIV DE eng J - Článek v odborném periodiku
Torrisi, L. - Cutroneo, Mariapompea - Torrisi, Alfio
X-Rays emission by high-intensity pulsed lasers irradiating thin foils at PALS laboratory.
Contributions to Plasma Physics. Roč. 60, č. 10 (2020), č. článku e202000089. ISSN 0863-1042. E-ISSN 1521-3986
Institucionální podpora: RVO:61389005
Klíčová slova: ion acceleration * laser-generated plasma * streak camera * TNSA * X-ray emission
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 1.563, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1002/ctpp.202000089

X-rays and forward ion emission from laser-generated plasma in the Target Normal Sheath Acceleration regime of different targets with 10-mu m thickness, irradiated at Prague Asterix Laser System (PALS) laboratory at about 10(16) W/cm(2)intensity, employing a 1,315 nm-wavelength laser with a 300-ps pulse duration, are investigated. The photon and ion emissions were mainly measured using Silicon Carbide (SiC) detectors in time-of-flight configuration and X-ray streak camera imaging. The results show that the maximum proton acceleration value and the X-ray emission yield growth are proportional to the atomic number of the irradiated targets. The X-ray emission is not isotropic, with energies increasing from 1 keV for light atomic targets to about 2.5 keV for heavy atomic targets. The laser focal position significantly influences the X-ray emission from light and heavy irradiated targets, indicating the possible induction of self-focusing effects when the laser beam is focalized in front of the light target surface and of electron density enhancement for focalization inside the target.
Trvalý link: http://hdl.handle.net/11104/0312474