X-ray Polarization Spectroscopy from Ultra-Intense Interactions

N. Booth*, R. Clarke, P. Gallegos, L. Gizzi, G. Gregori, P. Koester, L. Labate, T. Levato, B. Li, M. Makita, J. Pasley, P. P. Rajeev, D. Riley, E. Wagenaars, J. N. Waugh, N. C. Woolsey

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Detailed knowledge of fast electron energy transport following the interaction of ultrashort intense laser pulses is a key subject for fast ignition. This is a problem relevant to many areas of laser-plasma physics with particular importance to fast ignition and X-ray secondary source development, necessary for the development of large-scale facilities such as HiPER and ELI. Operating two orthogonal crystal spectrometers set at Bragg angles close to 45 degrees determines the X-ray s- and p-polarization ratio. From this ratio, it is possible to infer the velocity distribution function of the fast electron beam within the dense plasma. We report on results of polarization measurements at high density for sulphur and nickel buried layer targets in the high intensity range of 10(19) - 10(21) Wcm(-2). We observe at 45 degrees the Ly-alpha doublet using two sets of orthogonal highly-orientated pyrolytic graphite (HOPG) crystals set in 1(st) order for sulphur and 3(rd) order for nickel.

Original languageEnglish
Title of host publicationThe Sixth International Conference on Inertial Fusion Sciences and Applications
Place of PublicationBristol
PublisherIOP PUBLISHING LTD
Number of pages4
Volume244
Edition2
DOIs
Publication statusPublished - 2010
Event6th International Conference on Inertial Fusion Sciences and Applications - San Francisco, United States
Duration: 06 Sep 200911 Sep 2009

Publication series

NameJournal of Physics Conference Series
PublisherIOP PUBLISHING LTD
Volume244
ISSN (Print)1742-6588

Conference

Conference6th International Conference on Inertial Fusion Sciences and Applications
CountryUnited States
Period06/09/200911/09/2009

Keywords

  • PLASMA
  • IGNITION

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    Booth, N., Clarke, R., Gallegos, P., Gizzi, L., Gregori, G., Koester, P., Labate, L., Levato, T., Li, B., Makita, M., Pasley, J., Rajeev, P. P., Riley, D., Wagenaars, E., Waugh, J. N., & Woolsey, N. C. (2010). X-ray Polarization Spectroscopy from Ultra-Intense Interactions. In The Sixth International Conference on Inertial Fusion Sciences and Applications (2 ed., Vol. 244). (Journal of Physics Conference Series; Vol. 244). IOP PUBLISHING LTD. https://doi.org/10.1088/1742-6596/244/2/022028