Author: Fujiwara, T.
Paper Title Page
THPS064 Application of X-band 3.95 MeV Linac X-ray Source for On-site Bridge Inspection 3571
 
  • H.F. Jin, K. Demachi, K. Dobashi, T. Fujiwara, M. Uesaka, H. Zhu
    The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan
 
  We developed an X-ray non-destructive (NDT) system for on-site bridge inspection. A portable X-band (9.3-12 GHz) 3.95MeV linear accelerator (linac) has been developed for this system. The system consists of X-ray of 62kg without the target collimeter of 80kg, the RF power source of 62kg and other utility box of 116kg. For the onsite investigation, a flexible waveguide is used for this linac. And the linac is a point X-ray source. For X-ray detection, we chose 8-inch square size scintillation type flat panel detector. The spatial resolution of the detector is as high as 0.2mm, which is manufactured by Perkin Elmer Co. Cd2O2S:Tb is used for the scintillator crystal. The capable radiation energy range is 40keV to 15MeV. In order to realize quick inspection for a bridge, remote control robot which handles and compact X-ray source and detector are desired. Therefore, we developed 3D location system for this robot. The locating system is realized with image processing with its camera. For the operation, stereoscopic radiographic image is taken and analyzed, and computed tomography (CT) image analysis is taken for detailed inspection.
Non-destructive test (NDT) , X-ray Source, X-band, Linac, Detector, Computed Tomography (CT).