Hydrodynamic computational modelling and simulations of collisional shock waves in gas jet targets

被引：1

作者：

Stylianos Passalidis ^{[1
,2
]}

Oliver CEttlinger ^{[2
]}

George SHicks ^{[2
]}

Nicholas PDover ^{[2
,3
]}

Zulfikar Najmudin ^{[2
]}

Emmanouil PBenis ^{[4
]}

Evaggelos Kaselouris ^{[1
,5
]}

Nektarios APapadogiannis ^{[1
,5
]}

Michael Tatarakis ^{[1
,6
]}

Vasilis Dimitriou ^{[1
,5
]}

机构：

[1] Institute of Plasma Physics & Lasers, Hellenic Mediterranean University

[2] The John Adams Institute, The Blackett Laboratory, Imperial College

[3] Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology KPSI-QST

[4] Department of Physics, University of Ioannina

[5] Department of Music Technology and Acoustics, Hellenic Mediterranean University

[6] Department of Electronic Engineering, Hellenic Mediterranean University

来源：

High Power Laser Science and Engineering | 2020年 / 8卷 / 01期

关键词：

hydrodynamic simulations; ion acceleration; laser–plasma interaction;

D O I：

暂无

中图分类号：

O35 [流体力学];

学科分类号：

080103 ; 080704 ;

摘要：

We study the optimization of collisionless shock acceleration of ions based on hydrodynamic modelling and simulations of collisional shock waves in gaseous targets. The models correspond to the specifications required for experiments with the CO2 laser at the Accelerator Test Facility at Brookhaven National Laboratory and the Vulcan Petawatt system at Rutherford Appleton Laboratory. In both cases, a laser prepulse is simulated to interact with hydrogen gas jet targets. It is demonstrated that by controlling the pulse energy, the deposition position and the backing pressure, a blast wave suitable for generating nearly monoenergetic ion beams can be formed. Depending on the energy absorbed and the deposition position, an optimal temporal window can be determined for the acceleration considering both the necessary overdense state of plasma and the required short scale lengths for monoenergetic ion beam production.

引用

页码：46 / 55

页数：10