Electron sheath dynamics and structure in intense laser driven ion acceleration

S. Ter-Avetisyan; M. Schnürer; T. Sokollik; P. V. Nickles; W. Sandner; U. Stein; D. Habs; T. Nakamura; K. Mima

doi:10.1140/epjst/e2009-01127-2

EPJ

Electron sheath dynamics and structure in intense laser driven ion acceleration

S. Ter-Avetisyan¹, M. Schnürer¹, T. Sokollik¹, P. V. Nickles¹, W. Sandner¹, U. Stein², D. Habs³, T. Nakamura⁴ and K. Mima⁴

¹ MBI, Max-Born-Straße 2a, 12489 Berlin, Germany
² DLR, Pfaffenwaldring 38, 70569 Stuttgart, Germany
³ LMU München, Am Coulombwall 1, 85748 Garching, Germany
⁴ ILE, 2-6 Yamadaoka, Suita, Osaka, 565-0871, Japan

Abstract

The complex dynamical behavior of the electron sheath in laser driven ion acceleration leads to variations in ion beam pointing and ion energy modulation. These processes are derived from high resolution particle spectroscopy and 2D-PIC simulations. The phenomena arise from ion source movement if laser irradiation occurs at oblique incidence. Different laser absorption processes act in dependence on laser parameter which determines the ion acceleration.