@inproceedings{8808f3c3272d47f086566357cf63fbd7,
title = "Precise low-energy electron tracking using a gaseous Time Projection Chamber for the balloon-borne gamma ray compton telescope",
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.",
keywords = "balloon, Compton camera, Compton imaging, gaseous TPC, GSO scintillator, MeV gamma ray astronomy, MPGD, μ-PIC",
author = "T. Mizumoto and T. Tanimori and H. Kubo and A. Takada and Parker, {J. D.} and S. Sonoda and Y. Mizumura and D. Tomono and T. Sawano and K. Nakamura and Y. Matsuoka and S. Komura and S. Nakamura and M. Oda and K. Miuchi and S. Kabuki and Y. Kishimoto and S. Kurosawa and S. Iwaki and Y. Sato and M. Tanaka and M. Ikeno and T. Uchida",
year = "2013",
doi = "10.1109/NSSMIC.2013.6829411",
language = "English",
isbn = "9781479905348",
series = "IEEE Nuclear Science Symposium Conference Record",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2013 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013",
address = "United States",
note = "2013 60th IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2013 ; Conference date: 27-10-2013 Through 02-11-2013",
}