Precise low-energy electron tracking using a gaseous Time Projection Chamber for the balloon-borne gamma ray compton telescope

T. Mizumoto, T. Tanimori, H. Kubo, A. Takada, J. D. Parker, S. Sonoda, Y. Mizumura, D. Tomono, T. Sawano, K. Nakamura, Y. Matsuoka, S. Komura, S. Nakamura, M. Oda, K. Miuchi, S. Kabuki, Y. Kishimoto, S. Kurosawa, S. Iwaki, Y. SatoM. Tanaka, M. Ikeno, T. Uchida

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

3 Citations (Scopus)

Abstract

For MeV gamma ray astronomy, we have developed an Electron Tracking Compton Camera (ETCC) as a MeV gamma ray telescope in the next generation. Our detector consists of a gaseous Time Projection Chamber (TPC), which uses μ-PIC as the two-dimensional readout detector, and a position sensitive scintillation camera. We launched a small size ETCC with a 10 cm × 10 cm × 15 cm TPC loaded on a balloon in 2006, and obtained the fluxes of diffuse cosmic and atmospheric gamma rays (SMILE-I). As the next step of SMILE-I, we have a plan of the next measurement of MeV gamma ray celestial sources like Crab Nebula with a middle size (30 cm)3 ETCC (SMILE-II) for the test of its imaging property. For SMILE-II, we developed the new Data AcQuisition (DAQ) system of an ETCC to reduce the dead time and power consumption, including the new data acquisition algorithm of electron tracking. The detection efficiency obtained using the new algorithm is about 10 times larger than the one based on the SMILE-I's algorithm. In this record, we report the new SMILE-II ETCC DAQ system and its performances.

Original languageEnglish
Title of host publication2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479905348
DOIs
Publication statusPublished - 2013
Event2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 - Seoul, Korea, Republic of
Duration: 2013 Oct 272013 Nov 2

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

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

Keywords

  • Compton camera
  • Compton imaging
  • GSO scintillator
  • MPGD
  • MeV gamma ray astronomy
  • balloon
  • gaseous TPC
  • μ-PIC

ASJC Scopus subject areas

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

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