Effect of Laser Contrast on MeV Protons From Relativistic Laser-Solid Interactions

Authors

  • K F Kakolee Department of Physics, Jagannath University, Dhaka 1100, Bangladesh
  • Prashant Kumar Singh Center of Relativistic Laser Science, Institute for Basic Science (IBS), Gwangju 500-712, Korea
  • Sargis Ter Avetisyan ELI-ALPS, Szeged 6728, Hungary

DOI:

https://doi.org/10.3329/bjphy.v30i2.79514

Keywords:

Laser contrast, Proton flux, Ti:Sapphire laser system

Abstract

Results on acceleration of MeV protons from 100 TW Ti:Sapphire laser system is presented in this paper. By irradiating few micrometers thick aluminum foils with 30 fs laser pulse with intensity of 1020 W cm-2, protons with energy exceedingly more than 10 MeV were detected. However, on increasing our laser contrast by 2 orders of magnitude (10-8 to 10-10), we observe a nearly 4.5 times enhancement in the proton flux, with a slight reduction in the proton cut-off energy. These results open a prospect of producing high flux of MeV-class proton beams.

Bangladesh Journal of Physics, Vol. 30, Issue 2, pp. 77–80, December 2023

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Published

2023-07-30

How to Cite

Kakolee, K. F., Singh, P. K., & Ter Avetisyan, S. (2023). Effect of Laser Contrast on MeV Protons From Relativistic Laser-Solid Interactions. Bangladesh Journal of Physics, 30(2), 77–80. https://doi.org/10.3329/bjphy.v30i2.79514

Issue

Vol. 30 No. 2 (2023)

Section

Short Comminication

License

Copyright (c) 2023 K F Kakolee, Prashant Kumar Singh, Sargis Ter-Avetisyan

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.