Influence of the laser prepulse on proton acceleration in thin-foil experiments

被引：410

作者：

Kaluza, M ^{[1
]}

Schreiber, J ^{[1
]}

Santala, MIK ^{[1
]}

Tsakiris, GD ^{[1
]}

Eidmann, K ^{[1
]}

Meyer-ter-Vehn, J ^{[1
]}

Witte, KJ ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.93.045003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the influence of the laser prepulse due to amplified spontaneous emission on the acceleration of protons in thin-foil experiments. We show that changing the prepulse duration has a profound effect on the maximum proton energy. We find an optimal value for the target thickness, which strongly depends on the prepulse duration. At this optimal thickness, the rear side acceleration process leads to the highest proton energies, while this mechanism is rendered ineffective for thinner targets due to a prepulse-induced plasma formation at the rear side. In this case, the protons are primarily accelerated by the front side mechanism leading to lower cutoff energies.

引用

页码：045003 / 1

页数：4

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