X-ray polarization spectroscopy from ultra-intense interactions
Journal of Physics: Conference Series 244:PART 2 (2010)
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° 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 1019 - 1021 Wcm-2. We observe at 45° the Ly-α doublet using two sets of orthogonal highly-orientated pyrolytic graphite (HOPG) crystals set in 1st order for sulphur and 3rd order for nickel. © 2010 IOP Publishing Ltd.SURPRISES IN HIGH ENERGY DENSITY PHYSICS
World Scientific Publishing (2010) 96-111
Bragg diffraction using a 100 ps 17.5 keV x-ray backlighter and the Bragg diffraction imager
REVIEW OF SCIENTIFIC INSTRUMENTS 81:10 (2010) ARTN 10E522
Laser Physics
Oxford University Press, 2010
Abstract:
In this book the interaction of radiation and matter, and the principles of laser operation are treated at a level suitable for fourth-year undergraduate ...Metal deformation and phase transitions at extremely high strain rates
MRS BULLETIN 35:12 (2010) 999-1006