X-RAY EMISSION FROM KrF LASER-PRODUCED Al PLASMAS.

Y. Matsumoto, M. J. Shaw, F. O'Neill, J. P. Partanen, M. H. Key, R. Eason, I. N. Ross, E. M. Hodgson, Y. Sakagami

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Abstract

A high power (200 J, 50 ns) 249-nm KrF laser has been focused onto solid Al targets in vacuum at a peak irradiance of 3 multiplied by 10**1**3 W cm** minus **2. High-temperature ( greater than 200 eV) plasmas are produced and x-ray measurements show intense emission of the resonance spectra of Al XII and Al XIII in the wavelength range 0. 6-0. 8 nm. Absolute x-ray intensity measurements indicate a maximum source brightness of 1. 1 multiplied by 10**1**7 erg cm** minus **2 s** minus **1 sterad ** minus **1 in DELTA v/v equals 10** minus **3 and a conversion efficiency from laser power to x-ray power of 0. 2% for 1. 5 keV less than hv less than 2. 5 keV.
Original languageEnglish
Pages (from-to)28-30
Number of pages3
JournalApplied Physics Letters
Volume46
Issue number1
DOIs
Publication statusPublished - 1 Jan 1985
MoE publication typeA1 Journal article-refereed

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