Observation of repetitive bursts in emission of fast ions and neutrons in sub-nanosecond laser-solid experiments

Krása, Josef; Klír, D.; Velyhan, Andriy; Margarone, Daniele; Krouský, Eduard; Jungwirth, Karel; Skála, Jiří; Pfeifer, Miroslav; Kravárik, J.; Kubeš, P.; Řezáč, K.; Ullschmied, Jiří

doi:https://dx.doi.org/10.1017/S0263034613000360

Number of the records: 1

Observation of repetitive bursts in emission of fast ions and neutrons in sub-nanosecond laser-solid experiments

1.

SYSNO ASEP	0422829
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Observation of repetitive bursts in emission of fast ions and neutrons in sub-nanosecond laser-solid experiments
Author(s)	Krása, Josef (FZU-D)_{RID, ORCID} Klír, D. (CZ) Velyhan, Andriy (FZU-D)_{RID, ORCID} Margarone, Daniele (FZU-D)_{RID, ORCID} Krouský, Eduard (FZU-D)_RID Jungwirth, Karel (FZU-D)_RID Skála, Jiří (FZU-D)_{RID, ORCID} Pfeifer, Miroslav (FZU-D)_{RID, ORCID, SAI} Kravárik, J. (CZ) Kubeš, P. (CZ) Řezáč, K. (CZ) Ullschmied, Jiří (UFP-V)_RID
Source Title	Laser and Particle Beams. - : Cambridge University Press - ISSN 0263-0346 Roč. 31, č. 3 (2013), s. 395-401
Number of pages	7 s.
Language	eng - English
Country	US - United States
Keywords	laser-plasma interactions ; neutron yield scaling ; bursts in ion emission
Subject RIV	BH - Optics, Masers, Lasers
Subject RIV - cooperation	Institute of Plasma Physics - Plasma and Gas Discharge Physics
R&D Projects	EE2.3.20.0279 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GAP205/12/0454 GA ČR - Czech Science Foundation (CSF)
	LM2010014 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271 ; UFP-V - RVO:61389021
UT WOS	000324592500005
EID SCOPUS	84884544787
DOI	10.1017/S0263034613000360
Annotation	A massive deuterated polyethylene target was exposed to laser intensities of about 3 × 1016 W/cm2 employing the 3-TW Prague Asterix Laser System (PALS). We achieved a yield of 2 × 108 neutrons per laser shot. Average time-of-flight signals of scintillation detectors operated in current mode reveal broad energy spectra of fusion neutrons with dominating energy of about 2.45 MeV. The energy dependence of the neutron yield shows a consistency in results of nanosecond, picosecond and sub-picosecond experiments. Here we also show that ions emitted in the backward direction from the front target surface have a multi-peak energy spectrum, which is caused by burst emission mechanisms.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2014

Number of the records: 1