Post-acceleration of ions from the laser-generated plasma

• Autorzy: Giuffrida L. , Torrisi L.
• Konferencja: 9th Kudowa Summer School „Towards Fusion Energy”
• Języki publikacji: EN

Abstrakty

EN

An application of the laser-generated plasma for multi-energetic ion implantation is reported. In an experiment performed at Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud (INFN-LNS) of Catania, Italy the Nd:YAG laser was used, operating at the 1064 nm wavelength with the intensity of 1010 W/cm2. A laser pulse of 9 ns duration and 300 mJ energy was employed to ablate a solid target placed in a high vacuum. The free ion expansion occurred in a constant potential chamber placed at 30 kV positive voltage with respect to the ground, which allowed to extract ions with energy proportional to the charge state. In an another experiment, performed at the PALS Prague laser facility (1315 nm, 400 ps pulse width and the laser pulse energy delivered on target equal to about 35 J) Ti ions were obtained through the ablation of solid targets in vacuum by means of 1015 W/cm2 laser pulses. In both cases ion energy analyzers were used to measure the energy-to-charge ratio of the ions. The ion energy distribution was determined from the time-of-flight measurements. The depth profiles measured through Rutherford backscattering spectrometry (RBS) analysis are in good agreement with the ion energy analyzer spectroscopy measurements.

Słowa kluczowe

EN

laser ablation; laser-plasma; post-acceleration; ion implantation; Rutherford backscattering spectrometry (RBS) analysis

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2011
• Tom: Vol. 56, No. 2
• Strony: 161--163
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Giuffrida L.

autor

Torrisi L.

• Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare (National Institute for Nuclear Physics), 62 S. Sofia Str., 95123 Catania, Italy and Dipartimento di Fisica, Universitŕ di Messina, Ctr. da Papardo-Sperone 31, 98166 Messina, Italy,

Bibliografia

• 1. Feldman LC, Mayer JW (1986) Fundamentals of surface and thin film analysis. North-Holland Publishing, New York
• 2. Giuffrida L, Torrisi L, Czarnecka A et al. (2008) Ge laser-generated plasma for ion implantation. Radiat Eff Defects Solids 163:401–409
• 3. http://www/srim.org
• 4. Torrisi L, Mezzasalma AM, Gammino S et al. (2006) Ion implantation induced by Cu ablation at high laser fluence. Appl Surf Sci 252;24:8533–8538
• 5.Vector Field Inc. (2008) http://www.vectorfields.com.Opera 3d-Tosca, 3D Static EM field computation