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Prototype development of portable and high-efficiency imaging device in nuclear medicine

Research Project

Project/Area Number 11470196
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionHIROSHIMA INTERNATIONAL UNIVERSITY

Principal Investigator

HORIGUCHI Takayoshi  Faculty of Health Sciences, HIROSHIMA INTERNATIONAL UNIVERSITY, Professor, 保健医療学部, 教授 (40033899)

Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥14,800,000 (Direct Cost: ¥14,800,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1999: ¥9,000,000 (Direct Cost: ¥9,000,000)
KeywordsCdZnTe detector / Multi-array module / Image in nuclear medicine / 多重配列モジュール / 核医学診断 / CdTe検出器
Research Abstract

The purpose of present study is to develop a prototype of portable and high-efficiency imaging device in nuclear medicine. In 1999 fiscal year, a 12-channel CdZnTe detector array (each 4.83×4.83 mm, 2 mm thickness) was fabricated in special design, and energy gain of amplifier in each channel was adjusted. This array module was operated in room temperature and fundamental characteristics such as energy resolution was examined by MCA system. In 2000 fiscal year, this array module was scanned in one direction, and energy-selected counts were read into a computer with radioactive point sources and a mini-phantom. A software was developed to construct nuclear medical images from the data. Another high-resolution Si-PIN X-ray detector with thermoelectric cooler was introduced to compare the energy resolution and detection efficiency with those of the array module. In final fiscal year, pulse-motor driven XY-stage was prepared to precisely scan in two dimensional region. A flat radioactive ^<241> Am source of large area (100×100 mm) was prepared in special order. By using this flat source and CdZnTe array module, two-dimensional pseudo-images in nuclear medicine were obtained in several energy bins and compared with one-dimensional pseudo-image with Si-PIN detector. As a result, present array module was found to have much larger efficiency than Si-PIN detector. Moreover, this module has better energy and space resolutions than conventional NaI(T1) scintillator and is very promising in nuclear medical applications.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Y.Ishida, T.Horiguchi, et al.: "Mean-square nuclear charge radius of radioactive ^<144>Ce by laser spectroscopy"Physical Review. C59. 1794-1797 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 中川康雄, 堀口隆良 他: "WWWのための核図表作成プログラム"日本原子力研究所 JAERI-Data/Code. 99-032. 1-65 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Kuwamoto, T.Horiguchi, et al.: "Hyperfine Constants and Tensor Polarizabilities of 45^66s6p ^9Go-6 States in SmI"Journal of the Physical Society of Japan. 68. 1877-1882 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Fukumi, T.Horiguchi.et al.: "Observation of Starts-Induced Electric Dipole Transition in Atomic Samarium with Optical Double Resonance"Journal of the Physical Society of Japan. 71. 2137-2141 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 日野祥吾, 山本大地, 堀口隆良: "Si-PIN検出器による特性X線の精密測定"広島国際大学 診療放射線学科 平成14年度 卒業論文. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 濱渦恒俊, 瀬野哲, 堀口隆良: "CdZnTe検出器配列による可搬型γカメラ開発の基礎研究"広島国際大学 診療放射線学科 平成14年度 卒業論文. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Horiguchi, J.Katakura.et al.: "Chart of the Nuclides 2000 (2000年版核図表)"Japanese Nuclear Data Committee and Nuclear Data Center, JAERI. 22 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y. Ishida, H. Iimura, S. Ichikawa and T. Horiguchi: "Mean-square nuclear charge radius of radioactive ^<144>Ce by laser spectroscopy"Physical Review. C59, No.3. 1794-1797 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Kuwamoto, I. Endo, A. Fukumi, T. Horiguchi, M. Iinuma, Y. Ishida, T. Kondo, H. Matsuzaki and T. Takahashi: "Hyperfine Constants and Tensor Polarizabilities of 4f^6s6p ^9G_<0-6> States in Sm I"Journal of the Physical Society of Japan. 68, No.6. 1877-1882 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Horiguchi, T. Tachibana, H. Koura and J. Katakura: "CHART OF THE NUCLIDES 2000"Japanese Nuclear Data Committee and Nuclear Data Center, Japan Atomic Energy Research Institute. 1-24 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A. Fukumi, D. Angom, I. Endo, T. Horiguchi, M. Iinuma, T. Kondo and T. Takahashi: "Observation of Stark-Induced Electric Dipole Transition in Atomic Samarium with Optical Double Resonance"Journal of the Physical Society of Japan. 71, No.9. 2137-2141 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Iimura, T.Horiguchi et al.: "Hyperfine Structure and Isotope Shift Measurements of long-lived La Isotopes by Collinear Laser Spectroscopy"International Conference on Exotic Nuclei and Atomic Masses : ENAM2001, 2-7 July, 2001, Hameenlinna, Finland. (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Horiguchi, J.Katakura et al.: "CHART OF THE NUCLIDES 2000:核図表2000年版"Japanese Nuclear Data Clmmittee and Nuclear Data Center, JAERI. 22 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Iimura,T.Horiguchi et al.: "Hyperfine Structure and Isotope Shift Measurements of La Isotopes by Collinear Laser Spectroscopy."JAERI Tandem Annual Report. 2000-018. 32 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Horiguchi,J.Katakura et al.: "CHART OF THE NUCLIDES 2000"Japanese Nuclear Data Committee and Nuclear Data Center, JAERI. 22 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Ishida,T.Horiguchi et al.: "Mean-square nuclear charge radius of radioactive 144Ce by laser spectroscopy."Physical Review C. 59・3. 1794-1797 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Kuwamoto,T.Horiguchi et al.: "Hyperfine Constants and Tensor Polarizabilities of 4f^6 6s6p ^9G_<0-6> states in Sm I."Journal of the Physical Society of Japan. 68・6. 1877-1882 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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