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The properties of pulse laser ablation of Cu and Cu98/Be2 materials are studied, and the differences in the emission of Cu ions are emphasized. The iodine high-power laser system PALS in Prague and a KrF laser were used to perform the experiments at the fundamental harmonics λ 0 = 1.315 μm and λ 0 = 248 nm delivering energy up to 500 J and 600 mJ, respectively. Pure Cu and Cu98/Be2 alloy targets of 50, 500 and 1000 μm thickness were ablated to measure the influence of the Be admixture on the emission of Cu ions. The alloy Cu98/Be2 was chosen due to the well-defined amount of a beryllium admixture in the plasma in contrast to the incidental amount of carbon, oxygen and hydrogen impurities chemisorbed on target surfaces. It was approved that the emission of Cu ions driven by the KrF laser exhibits a higher gain from the Cu98/Be2 plasma in contrast to the Cu plasma. The ion emission induced by …
Taylor & Francis
Publication date: 
1 Oct 2010

A Velyhan, J Krása, E Krouský, L Láska, D Margarone, M Pfeifer, K Rohlena, J Skála, J Ullschmied, A Lorusso, L Velardi, V Nassisi

Biblio References: 
Volume: 165 Issue: 6-10 Pages: 488-494
Radiation Effects & Defects in Solids: Incorporating Plasma Science & Plasma Technology