Effect of the plasma density scale length on the direction of fast electrons in relativistic laser-solid interactions

Santala, M.I.K. et al. (2000) Effect of the plasma density scale length on the direction of fast electrons in relativistic laser-solid interactions. Physical Review Letters, 84(7), 1459 -1462. (doi: 10.1103/PhysRevLett.84.1459)

Abstract

The angular distribution of bremsstrahlung gamma rays produced by fast electrons accelerated in relativistic laser-solid interaction has been studied by photoneutron activation in copper. We show that the gamma-ray beam moves from the target normal to the direction of the k(laser) vector as the scale length is increased. Similar behavior is found also in 2D particle-in-cell simulations.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Singhal, Dr Ravi and Ledingham, Professor Kenneth
• Authors: Santala, M.I.K., Zepf, M., Watts, I., Beg, F.N., Clark, E., Tatarakis, M., Krushelnick, K., Dangor, A.E., McCanny, T., Spencer, I., Singhal, R.P., Ledingham, K.W.D., Wilks, S.C., Machacek, A.C., Wark, J.S., Allott, R., Clarke, R.J., and Norreys, P.A.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114