THE EXPANSION HISTORY OF ALUMINUM TARGETS RELEVANT TO X-RAY LASER SCHEMES

D.M. Oneill, Ciaran Lewis, D. Neely, S.J. Davidson, S.J. Rose, R.W. Lee

Research output: Contribution to journalArticlepeer-review

Abstract

For the first time, the technique of point projection absorption spectroscopy - which uses an intense, point source of X-rays to project and spectrally disperse an image of a plasma onto a detector- has been shown to be applicable to the study of expanding aluminium plasmas generated by approximately 80ps (2-omega) laser pulses. Massive, stripe targets of approximately 125-mu-m width and wire targets of 25-mu-m diameter have been studied. Using a PET Bragg crystal as the dispersive element, a resolving power of approximately 3500 was achieved with spatial resolution at the 5-mu-m level in frame times of the order of 80ps. Reduction of the data for times up to 150ps after the peak of the incident laser pulse produced estimates of the temperature and densities present, as a function of space and time.
Original languageEnglish
Pages (from-to)375-378
Number of pages4
JournalINSTITUTE OF PHYSICS CONFERENCE SERIES
Volume116
Publication statusPublished - 1990

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