Literature DB >> 27176413

Plasma scale-length effects on electron energy spectra in high-irradiance laser plasmas.

O Culfa1,2, G J Tallents2, A K Rossall2, E Wagenaars2, C P Ridgers2, C D Murphy2, R J Dance2, R J Gray3, P McKenna3, C D R Brown4, S F James4, D J Hoarty4, N Booth5, A P L Robinson5, K L Lancaster2,5, S A Pikuz6, A Ya Faenov6,7, T Kampfer8, K S Schulze8, I Uschmann8, N C Woolsey2.   

Abstract

An analysis of an electron spectrometer used to characterize fast electrons generated by ultraintense (10^{20}Wcm^{-2}) laser interaction with a preformed plasma of scale length measured by shadowgraphy is presented. The effects of fringing magnetic fields on the electron spectral measurements and the accuracy of density scale-length measurements are evaluated. 2D EPOCH PIC code simulations are found to be in agreement with measurements of the electron energy spectra showing that laser filamentation in plasma preformed by a prepulse is important with longer plasma scale lengths (>8 μm).

Year:  2016        PMID: 27176413     DOI: 10.1103/PhysRevE.93.043201

Source DB:  PubMed          Journal:  Phys Rev E        ISSN: 2470-0045            Impact factor:   2.529


  1 in total

1.  Micron-scale mapping of megagauss magnetic fields using optical polarimetry to probe hot electron transport in petawatt-class laser-solid interactions.

Authors:  Gourab Chatterjee; Prashant Kumar Singh; A P L Robinson; D Blackman; N Booth; O Culfa; R J Dance; L A Gizzi; R J Gray; J S Green; P Koester; G Ravindra Kumar; L Labate; Amit D Lad; K L Lancaster; J Pasley; N C Woolsey; P P Rajeev
Journal:  Sci Rep       Date:  2017-08-21       Impact factor: 4.379

  1 in total

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