Vol.8 No.2 2015

Research paper : Application of laser Compton photon beam to nondestructive tests (H. TOYOKAWA)−95−Synthesiology - English edition Vol.8 No.2 (2015) (2) Open to users(3) Investigation of plan(4) Modification of planBy conducting the research according to the above flow, we believe translational research can be conducted efficiently. Particularly, the user response of (2) is a job that requires concentration and physical energy, and if one stays too long at this phase or concentrate research resources here, the main objective turns into providing stable supply of devices, and we may miss the timing to move on to (3). Phase (2) is a passing point, and it is necessary to make a managerial decision to move forcibly to (3). Since the bridging research involves the researchers listening directly to the social demands, strong consciousness and motivation are generated among the researchers. If translational research is conducted in a bottom-up style, there is danger that the research resource of the organization becomes fragmented and the governance may decline. To promote this research, it is necessary to also conduct revisions to strengthen the organization.References[1]M. Fujii: X-ray micro-computed tomography, Journal of the Japanese Society for Non-Destructive Inspection, 54 (5), 228-232 (2005) (in Japanese).[2]M. Uesaka, T. Natsui, K. Lee, K. Dobashi, T. Yamamoto, T. Fujiwara, H. Zhu, K. Demachi, E. Tanabe, M. Yamamoto, N. Nakamura, J. Kusano, T. Higo, S. Fukuda, M. Yoshida and S. Matsumoto: 950 keV, 3.95 MeV and 6 MeV X-band linacs for nondestructive evaluation and medicine, Nucl. Instrum. and Methods in Phys. Res. A, 657 (1), 82-87 (2011).[3]R. H. Milburn: Electron scattering by an intense polarized photon field, Phys. Rev. Lett., 10 (3), 75-77 (1963).[4]T. Yamazaki, T. Noguchi, S. Sugiyama, T. Mikado, M. Chiwaki and T. Tomimasu: Generation of quasi-monochromatic photon beams from Compton backscattered laser light at ETL electron storage ring, IEEE Trans. Nucl. Sci. NS, 32 (5II), 3406-3408 (1985).[5]T. Tomimasu, T. Noguchi, S. Sugiyama, T. Yamazaki, T. Mikado and M. Chiwaki: A 600-MeV ETL electron storage ring, IEEE Trans. Nucl. Sci. NS, 30 (4II), 3133-3135 (1983).[6]J. H. Hubbell and S. M. Seltzer: Tables of X-Ray Mass Attenuation Coefficients and Mass Energy-Absorption Coefficients from 1 keV to 20 MeV for Elements Z = 1 to 92 and 48 Additional Substances of Dosimetric Interest* (http:// www.nist.gov/pml/data/xraycoef/), accessed 2015-01-18.[7]H. Toyokawa, S. Goko, S. Hohara, T. Kaihori, F. Kaneko, R. Kuroda, N. Oshima, M. Tanaka, M. Koike, A. Kinomura, H. Ogawa, N. Sei, R. Suzuki, T. Ohdaira, K. Yamada and H. Ohgaki: Recent progress in generation and application of AIST laser-Compton gamma-ray beam, Nucl. Instrum. and Methods in Phys. Res. A, 608 (1 Supp.), S41-43 (2009).[8]H. Toyokawa, H. Ohgaki, T. Mikado and K. Yamada: High- energy photon radiography system using laser-Compton scattering for inspection of bulk materials, Rev. Sci. 
Instrum., 73 (9), 3358-3362 (2002).[9]H. Toyokawa: Gamma-ray CT using laser-Compton photon beam, Oyo Buturi, 78 (4), 351-354 (2009) (in Japanese).[10]H. Toyokawa: Industrial imaging method using high-energy photon beam CT, Proc. 3rd International Workshop on Process Tomography (IWPT-3), 95(1)-95(8) (2009).[11]H. Toyokawa, H. Kanada, T. Kaihori, M. Koike and K. Yamada: Application of high-energy photon CT system with laser-Compton scattering to non-destructive test, IEEE Trans. Nucl. Sci., 55 (6), 3571-3578 (2008).[12]Evaluation Subcommittee, Committee on Industrial Science and Technology, Industrial Structure Council: “Jisedai 3 Jigen Naigai Keisoku No Hyoka Kiban Gijutsu Kaihatsu” Jizen Hyoka Hokokusho (Preliminary Evaluation Report of the “Development of Core Evaluation Technology for Next-Generation 3 Dimensional Internal and External Measurement”) (2012) (in Japanese).[13]R. Suzuki: Development of battery-operated portable high-energy X-ray sources - Innovation in X-ray non-destructive-evaluation, Synthesiology, 2 (3), 237-243 (2009) (in Japanese) [Synthesiology English edition, 2 (3), 221-228].[14]Japan Science and Technology Agency (2014-10-28): Press Release, JST Report, No. 1064, http://www.jst.go.jp/pr/info/info1064/index.html, accessed 2015-01-18 (in Japanese).AuthorHiroyuki TOYOKAWACompleted the doctorate course at the Graduate School of Engineering, Nagoya University in 1997. Doctor (Engineering). Joined the Electrotechnical Laboratory, Agency of Industrial Science and Technology in 1997. Photonics Research Institute, AIST in 2001; Research Institute of Instrumentation Frontier (RIFF), AIST in 2001; Group Leader, Quantum Radiation Research Group, RIFF-AIST in 2010; and Group Leader, Small Quantum Beam Source Group, RIFF-AIST since 2013.Discussions with Reviewers1 OverallComment (Naoto Kobayashi, Center for Research Strategy, Waseda University)This paper describes the application of the laser Compton scattering technology to radiography. It organizes the abundant research results that the author has achieved over the years, and describes the process by which the technologies were selected and integrated to achieve the goal. This paper has solid content that is appropriate for Synthesiology.However, the part on the LCS application in the first half of the paper is a review of the contents that were published in other papers, and does not necessarily address the synthesiological research that is particular to Synthesiology. As a paper of synthesiology, I think you should describe in order, what kind of R&D scenario was created to realize the specific goal (application of LCS to radiography), how the elemental technologies were selected, and how they were integrated to realize the scenario. Also, I think you need to add a descriptive diagram to clarify your arguments.2 Main focus of the paperComment (Shingo Ichimura, Strategic Innovation Office, Nagoya University)As you described in the discussion, why don’t you set the


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