08 Applications of Accelerators, Technology Transfer and Industrial Relations
U07 Industrial Applications
Paper Title Page
THPVA089 Optimization Study on Production of Mo-99 Using High Power Electron Accelerator Linac 4667
 
  • A. Taghibi Khotbeh-Sara, F. Rahmani
    KNTU, Tehran, Iran
  • S. Ahmadiannamin
    ILSF, Tehran, Iran
  • F. Ghasemi
    NSTRI, Tehran, Iran
  
  Molybdenum-99 is used for preparing 99mTc, which is the most widely used isotope in nuclear medicine. As a recent and now shortages in reactor-based supplies of 99Mo/99mTc and also some problems due to the time limitation in a direct production approach such as 100Mo(p, 2n)99mTc reaction by cyclotrons, many of developed countries have started the plan to produce this type of radioisotopes based on the production of non-reactor methods, especially by linac. In this study, the investigation on 99Mo production based on high power electron linac as an alternative approach has been performed, in which the use of 100Mo(gamma, n)99Mo (photoneutron production) has been proposed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA089  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPVA102 Structural Analysis and Evaluation of Actual PC Bridge Using 950 keV/3.95 MeV X-Band Linacs 4701
SUSPSIK029   use link to see paper's listing under its alternate paper code  
 
  • H. Takeuchi, R. Yano
    The University of Tokyo, Tokyo, Japan
  • K. Dobashi, Y. Mitsuya, M. Uesaka
    The University of Tokyo, Nuclear Professional School, Ibaraki-ken, Japan
  • M. Ishida, Y. Ohshima
    PWRI, Ibaraki, Japan
  • J. Kusano
    Accuthera Inc., Kawasaki, Kanagawa, Japan
  • I. Ozawa
    The University of Tokyo, The School of Engineering, Tokyo, Japan
  
  Funding: This work was supported by Council for Science, Technology and Innovation(CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP) (Funding agency: JST).
In Japan, bridges constructed in the highly economic growth era are facing to aging problem and advanced maintenance methods have been strongly required recently. To meet this demand, we develop the on-site inspection system using 950 keV/3.95 MeV X-band (9.3 GHz) linac X-ray sources*. These systems can visualize in seconds the inner states of bridge, including cracks of concrete, location and state of tendons (wires) and other imperfections. We focused on the inspection for wires which are critical to the safety of bridge. At the on-site inspections, the X-ray inspection system exhibited sufficient accuracy to detect the wire's corrosion. We also evaluated the maximum thickness of concrete to which our system can be applied. Using the 950 keV system, we conducted on-site inspection for real bridges and performed structural analysis to evaluate the bearing capacity of the bridge using finite element method. We plan to apply the 3.95 MeV linac for actual bridge inspection to extend the applicable range in 2017. For accurate visualization, the parallel motion CT technique for bridge inspection is in progress.
* Mitsuru Ueaska et al, On-site nondestructive inspection by upgraded portable 950keV/3.95MeV X-band linac x-ray sources, J. Phys. B: At. Mol. Opt. Phys. 47(2014) 234008 (9pp) 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA102  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)