Spectra of plasmas of Ru, Rh, Pd and Mo produced with nanosecond and picosecond laser pulses

Ragava Lokasani; Elaine Long; Paul Sheridan; Patrick Hayden; Fergal O'Reilly; Padraig Dunne; Akira Endo; Jiri Limpouch; Gerry O'Sullivan

doi:10.1117/12.2176551

14 May 2015 Spectra of plasmas of Ru, Rh, Pd and Mo produced with nanosecond and picosecond laser pulses

Ragava Lokasani, Elaine Long, Paul Sheridan, Patrick Hayden, Fergal O'Reilly, Padraig Dunne, Akira Endo, Jiri Limpouch, Gerry O'Sullivan

Author Affiliations +

Proceedings Volume 9514, Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III; 95141B (2015) https://doi.org/10.1117/12.2176551
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

This paper describes the extreme ultraviolet and soft x-ray emission recorded in the 2-12 nm region from Mo, Ru, Rh and Pd ions present in the laser produced plasmas. The spectra were found to be dominated by 3p-3d transitions in the 5-8 nm region, which shift slowly to shorter wavelengths with the increasing atomic number, and by 3d-4p and 3d-4f transitions at shorter wavelengths. These transitions, in a number of neighbouring ion stages, were distinguished by comparison with Cowan code calculations and previously reported data. The experimental results show that strong emission can be observed at the 6.X nm region for Ru, Rh and Pd plasmas.

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Ragava Lokasani, Elaine Long, Paul Sheridan, Patrick Hayden, Fergal O'Reilly, Padraig Dunne, Akira Endo, Jiri Limpouch, and Gerry O'Sullivan "Spectra of plasmas of Ru, Rh, Pd and Mo produced with nanosecond and picosecond laser pulses", Proc. SPIE 9514, Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III, 95141B (14 May 2015); https://doi.org/10.1117/12.2176551

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