IPAC2012 - List of Authors (Gorpinchenko, D.)

Paper	Title	Page
WEPPP029	Quasi-Monoenergetic Ion Bunch Generating by Two-Stage Laser Acceleration	2787
	G. Dudnikova UMD, College Park, Maryland, USA D. Gorpinchenko ICM&MG SB RAS, Novosibirsk, Russia
	Experiments carried out in recent years on the laser-plasma interaction show the possibility of ions acceleration to high energy. The energy spectrum of these ions is typically broad. Practical applications require that the beams of accelerated ions be monoenergetic. A scheme is proposed for producing a quasi-monoenergetic ion bunch by irradiating a foil with two subsequent laser pulses–a prepulse followed by a stronger main pulse. We have demonstrated a possible mechanism for generating a quasi-monoenergetic ion bunch from a homogeneous target consisting of atoms of the same species by the two-stage acceleration. Results are presented from 2D and 3D PIC simulation that illustrate the scheme and determine the space–time and energy characteristics of the accelerated ions. Investigation was made by varying such control parameters as the duration and amplitude of the main laser pulse and the prepulse, the time lag between the pulses, and the thickness and density of the foil.

Paper

Title

Page

Quasi-Monoenergetic Ion Bunch Generating by Two-Stage Laser Acceleration

2787

G. Dudnikova
UMD, College Park, Maryland, USA
D. Gorpinchenko
ICM&MG SB RAS, Novosibirsk, Russia

Experiments carried out in recent years on the laser-plasma interaction show the possibility of ions acceleration to high energy. The energy spectrum of these ions is typically broad. Practical applications require that the beams of accelerated ions be monoenergetic. A scheme is proposed for producing a quasi-monoenergetic ion bunch by irradiating a foil with two subsequent laser pulses–a prepulse followed by a stronger main pulse. We have demonstrated a possible mechanism for generating a quasi-monoenergetic ion bunch from a homogeneous target consisting of atoms of the same species by the two-stage acceleration. Results are presented from 2D and 3D PIC simulation that illustrate the scheme and determine the space–time and energy characteristics of the accelerated ions. Investigation was made by varying such control parameters as the duration and amplitude of the main laser pulse and the prepulse, the time lag between the pulses, and the thickness and density of the foil.