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)
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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.84.1459
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.
|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|