Laser-accelerated ions from layered targets

被引：1

作者：

Gizzi, L. A. ^{[1
,2
]}

Betti, S. ^{[1
,2
,6
,7
]}

Foerster, E. ^{[3
]}

Giulietti, A. ^{[1
,2
]}

Giulietti, D. ^{[1
,2
,4
]}

Kaempfer, T. ^{[3
]}

Koester, P. ^{[1
,2
]}

Labate, L. ^{[1
,2
]}

Levato, T. ^{[1
,2
]}

Luebcke, A. ^{[3
]}

Robinson, A. P. L. ^{[5
]}

Uschmann, I. ^{[3
]}

Zamponi, F. ^{[3
]}

机构：

[1] Ist Nazl Ottica, ILIL, I-56124 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy

[3] Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany

[4] Univ Pisa, Dipartimento Fis, Pisa, Italy

[5] Rutherford Appleton Lab, Cent Laser Facil, Chilton OX11 0QX, England

[6] Accademia Navale, Livorno, Italy

[7] Univ Pisa, Dipartimento Ingn Telecomunicaz, Pisa, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 620卷 / 01期

关键词：

Ion acceleration; Proton acceleration; High energy bunches; Laser-plasma acceleration; Laser-driven bunches; Numerical simulations; PIC; FAST-ELECTRON TRANSPORT; PROTON-BEAMS; PLASMA; HADRONTHERAPY; EXPANSION; PULSES; RAYS; FOIL;

D O I：

10.1016/j.nima.2010.01.065

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We investigated laser-driven ion acceleration with tightly focused femtosecond laser pulses at an intensity of 5 x 10(19)W/cm(2). Targets consisting of thin metal foils either back-coated with a mu m-thick dielectric layer or uncoated have been used. The observations we report show that proton bunches with energy in the MeV range have been produced. Furthermore, the protons emitted from back-coated targets exhibit a spatial cross-section which is remarkably more uniform and of significantly smaller size if compared with that of the protons emitted from uncoated foils. The experimental results are discussed in terms of the differences between the propagation of the fast electron current inside the back-coated and uncoated targets. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：83 / 87

页数：5

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