Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4

K. Takeuchi, Jun Kataoka, T. Nishiyama, T. Fujita, A. Kishimoto, S. Ohsuka, S. Nakamura, A. Adachi, M. Hirayanagi, T. Uchiyama, Y. Ishikawa, T. Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The Compton camera is a convenient tool used to visualize the distribution of radioisotopes that emit gamma rays. Following the nuclear disaster in Fukushima in 2011, there is a particularly urgent need to develop 'gamma cameras', which can visualize the distribution of such radioisotopes. In response, we propose a portable Compton camera, which comprises 3-D position-sensitive GAGG scintillators coupled with thin monolithic MPPC arrays. We report on the detailed optimization of the detector design, based on Geant4 simulation. The results show that detection efficiency reaches up to 0.54%, or more than 10 times that of other cameras being tested in Fukushima, along with a moderate angular resolution of 8.1° (FWHM). By applying the triangular surveying method, we also propose a new concept for the 'stereo' measurement of gamma rays by using two Compton cameras, thus enabling the 3-D positional measurement of radioactive isotopes for the first time. From one point source simulation data, we ensured that the source position and the distance to the same could be determined typically to within 2 meters' accuracy and we also confirmed that more than two sources are clearly separated by the event selection from two point sources of simulation data.

Original languageEnglish
Title of host publicationIEEE Nuclear Science Symposium Conference Record
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479905348
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 - Seoul, Korea, Republic of
Duration: 2013 Oct 272013 Nov 2

Other

Other2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
CountryKorea, Republic of
CitySeoul
Period13/10/2713/11/2

Fingerprint

Radioisotopes
radioactive isotopes
Information Storage and Retrieval
Gamma Rays
cameras
Fukushima Nuclear Accident
data simulation
Gamma Cameras
point sources
gamma rays
disasters
angular resolution
scintillation counters
optimization
detectors
simulation
1-myristoyl-2-palmitoyl-sn-glycero-3-phosphocholine

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Takeuchi, K., Kataoka, J., Nishiyama, T., Fujita, T., Kishimoto, A., Ohsuka, S., ... Kato, T. (2013). Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4. In IEEE Nuclear Science Symposium Conference Record [6829615] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NSSMIC.2013.6829615

Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4. / Takeuchi, K.; Kataoka, Jun; Nishiyama, T.; Fujita, T.; Kishimoto, A.; Ohsuka, S.; Nakamura, S.; Adachi, A.; Hirayanagi, M.; Uchiyama, T.; Ishikawa, Y.; Kato, T.

IEEE Nuclear Science Symposium Conference Record. Institute of Electrical and Electronics Engineers Inc., 2013. 6829615.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Takeuchi, K, Kataoka, J, Nishiyama, T, Fujita, T, Kishimoto, A, Ohsuka, S, Nakamura, S, Adachi, A, Hirayanagi, M, Uchiyama, T, Ishikawa, Y & Kato, T 2013, Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4. in IEEE Nuclear Science Symposium Conference Record., 6829615, Institute of Electrical and Electronics Engineers Inc., 2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013, Seoul, Korea, Republic of, 13/10/27. https://doi.org/10.1109/NSSMIC.2013.6829615
Takeuchi K, Kataoka J, Nishiyama T, Fujita T, Kishimoto A, Ohsuka S et al. Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4. In IEEE Nuclear Science Symposium Conference Record. Institute of Electrical and Electronics Engineers Inc. 2013. 6829615 https://doi.org/10.1109/NSSMIC.2013.6829615
Takeuchi, K. ; Kataoka, Jun ; Nishiyama, T. ; Fujita, T. ; Kishimoto, A. ; Ohsuka, S. ; Nakamura, S. ; Adachi, A. ; Hirayanagi, M. ; Uchiyama, T. ; Ishikawa, Y. ; Kato, T. / Stereo Compton cameras for the 3-D localization of radioactive isotopes optimized by Geant4. IEEE Nuclear Science Symposium Conference Record. Institute of Electrical and Electronics Engineers Inc., 2013.
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