Author: Daito, I.
Paper Title Page
THPWA009 Generation of Laser Compton Scattered Gamma-rays from a 150-MeV Microtron 3645
 
  • R. Hajima, C.T. Angell, I. Daito, T. Hayakawa, M. Kando, T. Shizuma
    JAEA, Ibaraki-ken, Japan
  • H. Ohgaki
    Kyoto University, Institute for Advanced Energy, Kyoto, Japan
  
  Funding: This work was supported in part by special coordination funds for promoting science and technology in Japan (Grant No. 066).
We have de­vel­oped a laser Comp­ton scat­tered gamma-ray source based on a 150-MeV race­track mi­cro­tron at Japan Atomic En­ergy Agency. The mi­cro­tron equipped with a pho­to­cath­ode RF gun ac­cel­er­ates a sin­gle bunch of elec­trons to col­lide with a laser pulse from a Nd:YAG laser. We have em­ployed laser pulse com­pres­sion by stim­u­lated Bril­louin scat­ter­ing to ob­tain high-flux gamma-rays, > 105 ph/s. The gamma-ray source is a pro­to­type of com­mer­cial ma­chine for nu­clear se­cu­rity ap­pli­ca­tions, non-de­struc­tive de­tec­tion of nu­clear ma­te­r­ial hid­den in a ship cargo. De­sign and per­for­mance of the gamma-ray source are pre­sented. 		 
 
THPWA011 Concepts of 220 MeV Racetrack Microtron for Non-destructive Nuclear Material Detection System 3651
 
  • T. Hori, T. Kii, R. Kinjo, H. Ohgaki, M. Omer, H. Zen
    Kyoto University, Institute for Advanced Energy, Kyoto, Japan
  • I. Daito, R. Hajima, T. Hayakawa, M. Kando, H. Kotaki
    JAEA, Kyoto, Japan
  • F. Sakai
    SHI, Tokyo, Japan
  
  Funding: Japan Science and Technology Agency Special Coordination Funds for Promoting Science and Technology (Grant No. 066)
A nu­clear ma­te­r­ial de­tec­tion sys­tem (NMDS) using the quasi-mono­chro­matic gamma-ray beam from a laser Comp­ton scat­ter­ing (LCS) source is pro­posed for the con­tainer in­spec­tion, where nu­clear res­o­nance flu­o­res­cence method is to be em­ployed for the spe­cific iso­tope iden­ti­fi­ca­tion such as U-235. In the sys­tem an elec­tron beam of good qual­ity at about 220-MeV must be pro­vided for LCS. One of the most promis­ing elec­tron source is a com­pact elec­tron ac­cel­er­a­tor named race­track mi­cro­tron (RTM). Some con­cepts of RTM suit­able for NMDS and ex­pected beam qual­i­ties will be pre­sented.