Parameter Study on Radiation Therapy with Laser-Accelerated Electrons Using a Sharp Density Transition Scheme
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概要
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A parameter study of radiation therapy with laser-accelerated electrons using a sharp density transition scheme was performed via computer simulations. Through particle-in-cell (PIC) simulations, a study of the optimum conditions for the generation of a monoenergetic electron beam was conducted. The beam quality can be controlled by adjusting the laser focal spot size. The charge of the electron bunch is related to the area of the phase mixing region. An electron bunch with the maximum charge was produced in the maximum area of the mixing region in a specific focal spot case. The energy spread of the electron bunch increases with increasing focal spot size owing to the nonlocalized acceleration phase of the wakefield in the larger focal spot case. The transverse bunch size decreases with increasing focal spot size from the narrower transverse size of the ion cavity in the larger focal spot. The dosimetric properties of these very-high-energy electron beams were calculated using Monte Carlo simulations.
- 2011-11-25
著者
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PARK Sung
National Research Laboratory (MPS), Research Institute of Pharmaceutical Sciences, College of Pharma
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Hahn Sang
Department Of Physics Chung-ang University
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Yoo Seung
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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Kim Dae-Hyun
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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Min Byung
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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Shin Dongho
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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Lee Se
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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Kim Jaehoon
Korea Electrotechnology Research Institute, Ansan, Gyeonggi 1701-19, Korea
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Hahn Sang
Department of Physics, Chung-Ang University, Seoul 156-756, Korea
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Park Sung
National Cancer Center, Goyang, Gyeonggi 410-769, Korea
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