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2006 Fiscal Year Final Research Report Summary

Development of application of compact tunable monochromatic X-ray source

Research Project

Project/Area Number 17360454
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear engineering
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

UESAKA Mitsuru  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF ENGINEERING, PROFESSOR, 大学院工学系研究科, 教授 (30232739)

Co-Investigator(Kenkyū-buntansha) NAKAGAWA Keiichi  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 大学院工学系研究科, 助教授 (80188896)
TORIKOSHI Masami  NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES, Director, 加速器工学部・照射装置開発室, 室長 (90280742)
NAKANISHI Tomoko  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF AGRICULTURAL AND LIFE SCIENCES, PROFESSOR, 大学院農学生命科学研究科, 教授 (30124275)
KATAOKA Kazunori  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF ENGINEERING, PROFESSOR, 大学院工学系研究科, 教授 (00130245)
NISHIYAMA Nobuhiro  THE UNIVERSITY OF TOKYO, GRADUATE SCHOOL OF MEDICINE, RESEARCH ASSOCIATE, 大学院医学系研究科, 助手 (10372385)
Project Period (FY) 2005 – 2006
KeywordsElectron linac / X-band / Inverse Compton scattering X-ray source / Dual-energy X-ray CT
Research Abstract

The compact, high-intensity-, and highly-stable- Compton scattering X-ray source using the X-band linac and Nd:YAG laser has been developed at the Nuclear Professional School, the University of Tokyo. In this dissertation, the experimental verification of the 3.5-cell X-band thermionic cathode RF gun was mainly studied. In the chapter 3, we calculated and evaluated the properties of the X-rays generated via Compton scattering. The angular distribution, spectrum, and intensity of the X-rays were calculated. The maximum X-ray energy is 43.8 keV and its total intensity is about 1.0 x 109 photons/s with the electron beam energy of 30 MeV and laser intensity and its wavelength of 1.4 J and 532 nm. The stability of the X-ray yields was evaluated to be less than 10 %. The beam optimization and its stability were discussed. In addition, the construction of the beam line and waveguide system for X-band linac and its high-power experiments were carried out. Furthermore, the laser system for the … More Compton scattering experiment was constructed and its performances were evaluated. Here, the important results and new knowledge throughout these studies are summarized as follows.
1 The high-power experiments on the 3.5-cell X-band thermionic cathode RF gun were performed and the 2 MeV electron beam was measured. This experimental verification of high-energy (-2 MeV) multi-bunch electron beam generation from the X-band thermionic cathode RF gun is achieved first in the world.
2 The construction of the whole RF system including the X-band thermionic cathode RF gun and X-band accelerating structure were carried out. RF feeding of 40 MW to the accelerating structure and 5.5 MW to the RF gun were achieved. In addition, We summarized the experiences and deduced the guideline of the high-powered RF conditioning. These knowledges will be important roles to realize X-band compact high-energy accelerators from now on.
3 The laser pulse circulation system for the Compton scattering experiment was constructed and its properties were evaluated. Focusing of the laser at 150 (horizontal) and 300 (vertical) micro m at rms was established. Then, its positioning stability within micro m was also confirmed. Furthermore, the experimental setup for the Compton scattering are constructed. This setup includes the beam diagnostic section. We developed some beam diagnostic schemes that can measure the four-dimensional beam parameters at the collision point. Less

  • Research Products

    (12 results)

All 2007 2006 Other

All Journal Article (10 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Multi-beam Compton scattering Monochromatic Tunable Hard X-ray Source2007

    • Author(s)
      Mitsuru UESAKA et al.
    • Journal Title

      International Journal of Modern Physics B 21・3

      Pages: 559

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] K-band Thermionic Cathode RF Gun and Multi-Beam Compton Scattering Monochromatic Tunable X-ray Source2006

    • Author(s)
      Fumito SAKAMOTO et al.
    • Journal Title

      Journal of the Korean Physical Society 49・1

      Pages: 286

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Two-colored Laser Circulation System for Monochromatic Tunable Hard X-ray Source2006

    • Author(s)
      Haruyuki OGINO et al.
    • Journal Title

      Journal of Nuclear Science and Technology 40・12

      Pages: 1458

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Generation of Quasi-monochromatic Compton Scattered X-rays using X-band Multi-bunch Linac and YAG Laser Circulation System2006

    • Author(s)
      Mitsuru UESAKA et al.
    • Journal Title

      The 19th International Conference on the Application of Accelerators in Research and Industry NBA03

      Pages: 231

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] High Power Experiment of X-Band Thermionic Cathode RF gun for Compton Scattering X-ray Source2006

    • Author(s)
      Fumito SAKAMOTO et al.
    • Journal Title

      AIP Conference Proceedings 877

      Pages: 657

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] High power laser pulse circulation experiment for compact quasi-monochromatic tunable X-ray source2006

    • Author(s)
      De MENG et al.
    • Journal Title

      The 19th International Conference on the Application of Accelerators in Research and Industry AT01

      Pages: 235

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] X-band Thermionic Cathode RF Gun and Multi-Beam Compton Scattering Monochromatic Tunable X-ray Source2006

    • Author(s)
      Fumito SAKAMOTO et al.
    • Journal Title

      Journal of the Korean Physical Society 49・1

      Pages: 286

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Two-colored Laser Circulation System for Monochromatic Tunable Hard X-ray Source2006

    • Author(s)
      Haruyuki OGINO et al.
    • Journal Title

      Journal of Nuclear Science and Technology 40,12

      Pages: 1458

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Multi-beam Compton scattering Monochromatic Tunable Hard X-ray Source2006

    • Author(s)
      Mitsuru UESAKA et al.
    • Journal Title

      International Journal of Modern Physics B 21,3

      Pages: 559

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Generation of Quasi-monochromatic Compton Scattered X-rays using X-band Multi-bunch Linac and YAG Laser Circulatioi System2006

    • Author(s)
      Mitsuru UESAKA et al.
    • Journal Title

      The 19th International Conference on the Application of Accelerators in Research and Industry NBA03

      Pages: 231

    • Description
      「研究成果報告書概要(欧文)」より
  • [Patent(Industrial Property Rights)] 多色X線発生装置

    • Inventor(s)
      野瀬裕之, 石田大典, 金子七三雄, 栄久晴, 上坂充, 土橋克広
    • Industrial Property Rights Holder
      国際特許権PCT/JP2006/309504
    • Industrial Property Number
      20060511
    • Description
      「研究成果報告書概要(和文)」より
  • [Patent(Industrial Property Rights)] 診断・治療用X切換え発生装置

    • Inventor(s)
      野瀬裕之, 石田大典, 金子七三雄, 栄久晴, 上坂充, 深澤篤, 土橋克広
    • Industrial Property Rights Holder
      国際特許権PCT/JP2006/309502
    • Industrial Property Number
      20060511
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2008-05-27  

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