Speaker
Dr
Hisataka Takenaka
(Toyama Co.,Ltd.)
Description
The development of compact x-ray generator based on the electron cryo-linear accelerator has been studied in collaboration with Nihon university, High energy accelerator research organization and Toyama. To realize highly sensitive phase contrast imaging at clinics, a parametric x-ray radiation (PXR)-based source is one of attractive candidates[1-3]. However, the monochromatic x-rays of 109 to 1010 flux are required for practical medical use. Since recent studies on PXR have shown that the available x-ray flux is increased by using an asymmetric cut crystal as a PXR radiator, it is supposed that the necessary x-ray flux should be sufficiently achieved using a 75 MeV high duty electron linac with average current of 20-30 uA. With respect to the electric power consumption, it is not so difficult to develop the linac of such performance. A significant problem for medical use is the dimension of the building in which the x-ray generator is installed, which is dominated by the size of liniac and the volume of the radiation shield. Therefore, a normal-conducting compact energy recovery liniac (ERL) for a PXR source has been planned in the design study to reduce the dimension of the machine and the surrounding radiation shield. Study on the element technologies is under way, including development of high Q-value accelerating cavities made of high purity copper materials. For the present, the specifications normal conducting ERL was determined on the basis of the results of the simulation study.
References
1. Y. Hayakawa, I. Sato, K. Hayakawa, and T. Tanaka, Nucl. Instrum. and Meth. B 227 (2006) 32.
2. Y. Hayakawa, K. Hayakawa, M. Inagaki, T. Kaneda, K. Nakao, K. Nogami, T. Sakae, T.Sakai, I. Sato, Y. Takahashi, and T. Tanaka, J. Phys.: conf. Ser. 517 (2014) 012017.
Primary author
Dr
Yasushi Hayakawa
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
Co-authors
Mr
Akihiro Iino
(Toyama Co.,Ltd.)
Mr
Chibon Hyon
(Toyama Co.,Ltd)
Mr
Hiroyuki Hatanaka
(Toyama Co.,Ltd.)
Dr
Hisataka Takenaka
(Toyama Co.,Ltd.)
Prof.
Isamu Sato
(Nihon University)
Dr
Keisa Nakao
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
Mr
Keisuke Endo
(Toyama Co.,Ltd.)
Prof.
Ken Hayakawa
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
Prof.
Masanori Satoh
(KEK)
Prof.
Masayoshi Wake
(KEK)
Prof.
Mitsuhiro Yoshida
(KEK)
Prof.
Seiya Yamaguchi
(KEK)
Prof.
Shigeki Fukuda
(KEK)
Prof.
Shinichiro Michizono
(KEK)
Prof.
Takakazu Shintomi
(Nihon University)
Dr
Takeshi Sakai
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
Dr
Tetsuro Mochizuki
(Toyama Co.,Ltd.)
Dr
Toshikazu Takatomi
(KEK)
Prof.
Toshinari Tanaka
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
Prof.
Tsuyoshi Suwada
(KEK)
Dr
manabu Inagaki
(Laboratory for Electron Beam Research and Application (LEBRA), Nihon University)
