Pramana | |
Three-dimensional simulation of laser–plasma-based electron acceleration | |
B S Rao2  A Upadhyay12  K Patel1  P D Gupta2  P A Naik2  | |
[1] Laser & Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$;Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India$$ | |
关键词: Laser–plasma simulation; PIC code; electron acceleration.; | |
DOI : | |
学科分类:物理(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
A sequential three-dimensional (3D) particle-in-cell simulation code PICPSI-3D with a user friendly graphical user interface (GUI) has been developed and used to study the interaction of plasma with ultrahigh intensity laser radiation. A case study of laser–plasma-based electron acceleration has been carried out to assess the performance of this code. Simulations have been performed for a Gaussian laser beam of peak intensity 5 × 1019 W/cm2 propagating through an underdense plasma of uniform density 1 × 1019 cm-3, and for a Gaussian laser beam of peak intensity 1.5 × 1019 W/cm2 propagating through an underdense plasma of uniform density 3.5 × 1019 cm-3. The electron energy spectrum has been evaluated at different time-steps during the propagation of the laser beam. When the plasma density is 1 × 1019 cm-3, simulations show that the electron energy spectrum forms a monoenergetic peak at ∼ 14 MeV, with an energy spread of ± 7 MeV. On the other hand, when the plasma density is 3.5 × 1019 cm-3, simulations show that the electron energy spectrum forms a monoenergetic peak at ∼ 23 MeV, with an energy spread of ± 7.5 MeV.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040498456ZK.pdf | 669KB | download |