Precision X-ray spectroscopy of intense laser-plasma interactions
نویسندگان
چکیده
Polarisation sensitive emission spectroscopy measurements are reported for a petawatt laser-solid target interaction at intensities up to 5 10 W cm . These measurements were single-shot and used pairs of highly-orientated graphite spectrometers to resolve the sulphur Ly-a doublet. The sulphur Ly-a1 component shows a large positive polarisation indicative of a low energy electron beam in the plasma, the Ly-a2 component acts as a cross-spectrometer calibration. The measurements show a significant anisotropic or beam-like component to a cold return current. 2011 Elsevier Ltd. All rights reserved.
منابع مشابه
Characterization of Laser Plasmas for an X-Ray Backlighter
The investigation of the inner core of dense, cool plasmas is due to the high opacity and weak self emission a difficult issue. A powerful diagnostic tool for these plasmas is an X-ray backlighter [1]. For this experimental setup a laser plasma is used as an intense X-ray source to either shadowgraph [2] the plasma or to do absorption spectroscopy [3]. This setup allows a high temporal resoluti...
متن کاملOptimum driving a Z-pinch for soft X-Ray lasers
A capillary plasma z-pinch as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...
متن کاملX-ray generation by femtosecond laser pulses and its application to soft X-ray imaging microscope
We have developed laser-produced plasma X-ray sources using femtosecond laser pulses at lOHz repetition rate in a table-top size in order to investigate basic mechanism of X-ray emission from laser-matter interactions and its application to a X-ray microscope. In a soft X-ray region over 5 nm wavelength, laser-plasma X-ray emission from a solid target achieved an intense flux of photons of the ...
متن کاملElectromagnetically confined plasma target for interaction studies with intense laser fields
The paper describes a novel application of an electron beam ion trap as a plasma target facility for intense laser–plasma interaction studies. The low density plasma target ( 10/cm) is confined in a mobile cryogenic electromagnetic charged particle trap, with the magnetic confinement field of 1–3 T maintained by a superconducting magnet. Ion plasmas for a large variety of ion species and charge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2018