Dosimetric properties of plasma density effects on laser-accelerated VHEE beams using a sharp density-transition scheme

作者：Yoo Seung Hoon; Min Byung Jun; Cho Sungho; Kim Eun Ho; Park Jeong Hoon; Jung Won Gyun; Kim Geun Beom; Kim Kum Bae; Kim Jaehoon; Jeong Hojin; Lee Kitae; Park Sung Yong

来源：Journal of the Korean Physical Society, 2017, 70(1): 66-74.

DOI：10.3938/jkps.70.66

• Laser Accelerated electron-Plasma density-Dosimetric property

In this paper, the effects of the plasma density on laser-accelerated electron beams for radiation therapy with a sharp density transition are investigated. In the sharp density-transition scheme for electron injection, the crucial issue is finding the optimum density conditions under which electrons injected only during the first period of the laser wake wave are accelerated further. In this paper, we report particle-in-cell simulation results for the effects of both the scale length and the densitytransition ratio on the generation of a quasi-mono-energetic electron bunch. The effects of both the transverse parabolic channel and the plasma length on the electron-beam's quality are investigated. Also, we show the experimental results for the feasibility of a sharp density-transition structure. The dosimetric properties of these very high-energy electron beams are calculated using Monte Carlo simulations.

• 出版日期2017-1