Generation of GeV protons from 1 PW laser interaction with near critical density targets

被引：136

作者：

Bulanov, Stepan S. ^{[1
,2
,3
]}

Bychenkov, Valery Yu. ^{[4
]}

Chvykov, Vladimir ^{[1
,2
]}

Kalinchenko, Galina ^{[1
,2
]}

Litzenberg, Dale William ^{[5
]}

Matsuoka, Takeshi ^{[1
,2
]}

Thomas, Alexander G. R. ^{[1
,2
]}

Willingale, Louise ^{[1
,2
]}

Yanovsky, Victor ^{[1
,2
]}

Krushelnick, Karl ^{[1
,2
]}

Maksimchuk, Anatoly ^{[1
,2
]}

机构：

[1] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA

[2] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[3] Inst Theoret & Expt Phys, Moscow 117218, Russia

[4] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia

[5] Univ Michigan, Radiat Dept, Ann Arbor, MI 48109 USA

来源：

PHYSICS OF PLASMAS | 2010年 / 17卷 / 04期

基金：

美国国家科学基金会;

关键词：

ion sources; plasma light propagation; plasma simulation; plasma transport processes; IN-CELL SIMULATION; ION-ACCELERATION; RELATIVISTIC IONS; COLLIMATED BEAMS; FAST IGNITION; PULSES; RADIATION; ENERGY; PLASMA; ULTRAINTENSE;

D O I：

10.1063/1.3372840

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The propagation of ultraintense laser pulses through matter is connected with the generation of strong moving magnetic fields in the propagation channel as well as the formation of a thin ion filament along the axis of the channel. Upon exiting the plasma the magnetic field displaces the electrons at the back of the target, generating a quasistatic electric field that accelerates and collimates ions from the filament. Two dimensional particle-in-cell simulations show that a 1 PW laser pulse tightly focused on a near-critical density target is able to accelerate protons up to an energy of 1.3 GeV. Scaling laws and optimal conditions for proton acceleration are established considering the energy depletion of the laser pulse.

引用

页数：8

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