Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets

Reduction of proton acceleration in the interaction of a high-intensity, piosecond laser with a 50-μm aluminum target was observed when 0.1-6 μm of plastic was deposited on the back surface (opposite side of the laser). The maximum energy and number of energetic protons observed at the back of the t...

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Main Authors: Wei, MS, Davies, JR, Clark, E, Beg, F, Gopal, A, Tatarakis, M, Willingale, L, Nilson, P, Dangor, A, Norreys, P, Zepf, M, Krushelnick, K
Format: Journal article
Language:English
Published: 2006
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author Wei, MS
Davies, JR
Clark, E
Beg, F
Gopal, A
Tatarakis, M
Willingale, L
Nilson, P
Dangor, A
Norreys, P
Zepf, M
Krushelnick, K
author_facet Wei, MS
Davies, JR
Clark, E
Beg, F
Gopal, A
Tatarakis, M
Willingale, L
Nilson, P
Dangor, A
Norreys, P
Zepf, M
Krushelnick, K
author_sort Wei, MS
collection OXFORD
description Reduction of proton acceleration in the interaction of a high-intensity, piosecond laser with a 50-μm aluminum target was observed when 0.1-6 μm of plastic was deposited on the back surface (opposite side of the laser). The maximum energy and number of energetic protons observed at the back of the target were greatly reduced in comparison to pure aluminum and plastic targets of the same thickness. This is attributed to the effect of the interface between the layers. Modeling of the electron propagation in the targets using a hybrid code showed strong magnetic-field generation at the interface and rapid surface heating of the aluminum layer, which may account for the results. © 2006 American Institute of Physics.
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spelling oxford-uuid:b6b19b66-9e71-4b5b-957e-de55ac5ce9842022-03-27T04:42:47ZReduction of proton acceleration in high-intensity laser interaction with solid two-layer targetsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b6b19b66-9e71-4b5b-957e-de55ac5ce984EnglishSymplectic Elements at Oxford2006Wei, MSDavies, JRClark, EBeg, FGopal, ATatarakis, MWillingale, LNilson, PDangor, ANorreys, PZepf, MKrushelnick, KReduction of proton acceleration in the interaction of a high-intensity, piosecond laser with a 50-μm aluminum target was observed when 0.1-6 μm of plastic was deposited on the back surface (opposite side of the laser). The maximum energy and number of energetic protons observed at the back of the target were greatly reduced in comparison to pure aluminum and plastic targets of the same thickness. This is attributed to the effect of the interface between the layers. Modeling of the electron propagation in the targets using a hybrid code showed strong magnetic-field generation at the interface and rapid surface heating of the aluminum layer, which may account for the results. © 2006 American Institute of Physics.
spellingShingle Wei, MS
Davies, JR
Clark, E
Beg, F
Gopal, A
Tatarakis, M
Willingale, L
Nilson, P
Dangor, A
Norreys, P
Zepf, M
Krushelnick, K
Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title_full Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title_fullStr Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title_full_unstemmed Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title_short Reduction of proton acceleration in high-intensity laser interaction with solid two-layer targets
title_sort reduction of proton acceleration in high intensity laser interaction with solid two layer targets
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