Laser-driven high-energy proton beam with homogeneous spatial profile from a nanosphere target

Margarone, Daniele; Kim, I. J.; Pšikal, Jan; Kaufman, Jan; Mocek, Tomáš; Choi, I.W.; Štolcová, Lucie; Proska, J.; Choukourov, A.; Melnichuk, I.; Klimo, Ondřej; Limpouch, Jiří; Sung, J.H.; Lee, S.K.; Korn, Georg; Jeong, T.M.

doi:https://dx.doi.org/10.1103/PhysRevSTAB.18.071304

Number of the records: 1

Laser-driven high-energy proton beam with homogeneous spatial profile from a nanosphere target

1.

SYSNO ASEP	0455724
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Laser-driven high-energy proton beam with homogeneous spatial profile from a nanosphere target
Author(s)	Margarone, Daniele (FZU-D)_{RID, ORCID} Kim, I. J. (KR) Pšikal, Jan (FZU-D)_{RID, ORCID} Kaufman, Jan (FZU-D)_ORCID Mocek, Tomáš (FZU-D)_{RID, ORCID, SAI} Choi, I.W. (KR) Štolcová, Lucie (FZU-D)_RID Proska, J. (CZ) Choukourov, A. (CZ) Melnichuk, I. (CZ) Klimo, Ondřej (FZU-D)_{RID, ORCID} Limpouch, Jiří (FZU-D)_RID Sung, J.H. (KR) Lee, S.K. (KR) Korn, Georg (FZU-D)_{RID, ORCID} Jeong, T.M. (KR)
Source Title	Physical Review Special Topics-Accelerators and Beams - ISSN 1098-4402 Roč. 18, č. 7 (2015), "071304-1"-"071304-7"
Number of pages	7 s.
Language	eng - English
Country	US - United States
Keywords	petawatt-laser ; acceleration ; spectroscopy
Subject RIV	BH - Optics, Masers, Lasers
R&D Projects	LD14089 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GA15-02964S GA ČR - Czech Science Foundation (CSF)
	ED1.1.00/02.0061 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	ED3.1.00/10.0210 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EE2.3.20.0279 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000357811700001
EID SCOPUS	84940416564
DOI	10.1103/PhysRevSTAB.18.071304
Annotation	A high-energy, high-yield proton beam with a good homogeneous profile has been generated from a nanosphere target irradiated by a short (30-fs), intense (7 x 10(20) W/cm(2)) laser pulse. A maximum proton energy of 30 MeV has been observed with a high proton number of 7 x 10(10) in the energy range 5-30 MeV. A homogeneous spatial profile with a uniformity (standard deviation from an average value within 85% beam area) of 15% is observed with the nanosphere dielectric target. Particle-in-cell simulations show the enhancement of proton cutoff energy and proton number with the nanosphere target and reveal that the homogeneous beam profile is related with a broadened angular distribution of hot electrons, which is initiated by the nanosphere structure. The homogeneous spatial properties obtained with the nanosphere target will be advantageous in developing laser-driven proton sources for practical applications in which high-quality beams are required.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2016

Number of the records: 1