Design of Compact Monochromatic Tunable Hard X-Ray Source Based on X-band Linac
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概要
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A compact tunable monochromatic (1 to 10 percent bandwidth rms) hard X-ray source based on laser-electron collisions for medicine is proposed. An X-band linac is introduced to realize a remarkably compact system. We have designed a compact monochromatic tunable hard X-ray source as a demonstration. An X-band (11.424 GHz) linac for the purpose is being manufactured. Numerical considerations using CAIN code and luminosity calculations have been performed to estimate the X-ray yield. An X-band thermionic-cathode RF gun and an RDS (round detuned structure) X-band accelerating structure are applied to generate a 50 MeV electron beam with 20 pC/micro-bunch, 1 μs macro-pulse. The total X-ray yield by laser-electron collision with the electron beam and Q-switch Nd:YAG laser with a pulse intensity of 2 J/10 ns is $10^{7}$ photons/RF-pulse ($10^{8}$ photons/s in 10 pps). We will adapt the technique of laser pulse circulating to increase the X-ray yield up to $10^{8}$ photons/pulse ($10^{9}$ photons/s). Twenty eight percent of the photons with an energy spread of 10% rms are expected to be available by collimating the scattering angles of X-ray photons.
- 2005-04-15
著者
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Urakawa Junji
High Energy Accelerator Research Organization
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Imai Takayuki
Nuclear Engineering Research Laboratory (utnl) University Of Tokyo
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DOBASHI Katsuhiro
National Institute of Radiological Sciences
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FUKASAWA Atsushi
High Energy Accelerator Research Organization (KEK)
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SAKAMOTO Fumito
Nuclear Engineering Research Laboratory (UTNL), University of Tokyo
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AKEMOTO Mitsuo
High Energy Accelerator Research Organization (KEK)
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HIGO Toshiyasu
High Energy Accelerator Research Organization (KEK)
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Ebina Futaro
Nuclear Engineering Research Laboratory (utnl) University Of Tokyo
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Iijima Hokuto
Nuclear Engineering Research Laboratory (utnl) University Of Tokyo
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Hayano Hitoshi
High Energy Accelerator Research Organization
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Uesaka Mitsuru
Nuclear Engineering Res. Laboratory Of University Of Tokyo
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Ebina Futaro
Nuclear Engineering Research Laboratory (UTNL), University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1188, Japan
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Fukasawa Atsushi
High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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Akemoto Mitsuo
High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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Sakamoto Fumito
Nuclear Engineering Research Laboratory (UTNL), University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1188, Japan
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Imai Takayuki
Nuclear Engineering Research Laboratory (UTNL), University of Tokyo, 2-22 Shirakata-Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1188, Japan
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Dobashi Katsuhiro
National Institute of Radiological Sciences (NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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Higo Toshiyasu
High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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Urakawa Junji
High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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