| Project/Area Number |
24510120
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Quantum beam science
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| Research Institution | High Energy Accelerator Research Organization (2013-2014)
The University of Tokyo (2012) |
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Principal Investigator |
KOYAMA Kazuyoshi 大学共同利用機関法人高エネルギー加速器研究機構, 先端加速器推進部, 特定教授 (40357041)
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| Co-Investigator(Kenkyū-buntansha) |
UESAKA Mitsuru 東京大学, 大学院工学系研究科(工学部), 教授 (30232739)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 誘電体加速器 / 放射線生物学 / マイクロビーム / 電子ビーム |
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| Outline of Final Research Achievements |
A transmission grating type laser-driven dielectric accelerator (TG-LDA) is a suitable tool for observing fundamental processes of the radiation effects in a living cell. The required electron energy and electronic charge of the bunch are about 1 MeV and 0.01 fC, respectively. The simulation results by using the FDTD code, Meep, showed that acceleration gradients of 48 MeV/m and 600 MeV/m for the low energy electron of 20 keV and the relativistic electron, respectively. An accelerator length to get the energy gain of 1 MeV is 4 mm. The required laser power and energy are 200 MW and 10 mJ, respectively. A restriction on the laser is relaxed by adopting multiple pulses. If the accelerator is illuminated by N-pairs of sequential pulses, the pulse power, pulse width and the pulse energy are reduced to 1/N, 1/N and 1/N2, respectively. The required laser power per pulse is estimated to be 20MW when N=10 of sequential laser pulse is adopted.
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