TY - JOUR

T1 - Ultrafast laser-driven proton sources and dynamic proton imaging

AU - Nickles, Peter V.

AU - Schnürer, Matthias

AU - Sokollik, Thomas

AU - Ter-Avestisyan, Sargis

AU - Sandner, Wolfgang

AU - Amin, Munib

AU - Toncian, Toma

AU - Willi, Oswald

AU - Andreev, Alexander

PY - 2008/7

Y1 - 2008/7

N2 - Ion bursts, accelerated by an ultrafast (40 fs) laser-assisted target normal sheath acceleration mechanism, can be adjusted so as to deliver a nearly pure proton beam. Such laser-driven proton bursts have predominantly a low transverse emittance and a broad kinetic spectrum suitable for continuous probing of the temporal evolution of spatially extended electric fields that arise after laser irradiation of thin foils. Fields with a strength of up to 1010 V/m were measured with a new streaklike proton deflectometry setup. The data show the temporal and spatial evolution of electric fields that are due to target charge-up and ion-front expansion following intense laser-target interaction at intensities of 1017-1018 W/cm2. Measurement of the field evolution is important to gain further insight into lateral electron-transport processes and the influence of field dynamics on ion beam properties.

AB - Ion bursts, accelerated by an ultrafast (40 fs) laser-assisted target normal sheath acceleration mechanism, can be adjusted so as to deliver a nearly pure proton beam. Such laser-driven proton bursts have predominantly a low transverse emittance and a broad kinetic spectrum suitable for continuous probing of the temporal evolution of spatially extended electric fields that arise after laser irradiation of thin foils. Fields with a strength of up to 1010 V/m were measured with a new streaklike proton deflectometry setup. The data show the temporal and spatial evolution of electric fields that are due to target charge-up and ion-front expansion following intense laser-target interaction at intensities of 1017-1018 W/cm2. Measurement of the field evolution is important to gain further insight into lateral electron-transport processes and the influence of field dynamics on ion beam properties.

UR - http://www.scopus.com/inward/record.url?scp=51849130030&partnerID=8YFLogxK

U2 - 10.1364/JOSAB.25.00B155

DO - 10.1364/JOSAB.25.00B155

M3 - Article

AN - SCOPUS:51849130030

VL - 25

SP - B155-B160

JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

SN - 0740-3224

IS - 7

ER -