超高エネルギー宇宙線と福島事故環境放射線用の検出器とアルゴリズムの開発

2018 Fiscal Year Annual Research Report

• Project/Area Number: 16F16737
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: 戎崎 俊一 国立研究開発法人理化学研究所, 開拓研究本部, 主任研究員 (10183021)
• Co-Investigator(Kenkyū-buntansha): TURRIZIANI SARA 国立研究開発法人理化学研究所, 開拓研究本部, 外国人特別研究員
• Project Period (FY): 2016-10-07 – 2019-03-31
• Keywords: 超高エネルギー宇宙線

Outline of Annual Research Achievements

Research activities at RIKEN consisted mainly on calibration of detectors and the design and development of complex algorithms for space application. I studied and characterize different detectors technologies, managing both hardware and software development. The final goal is to to achieve a better knowledge of their performance so that ir will be possible to adapt them to design a series of affordable radiation detectors which will allow for increasing awareness by the general public of the safety of the products of the region exposed by the Fukushima fallout. In particular, I participated in various activities related to prototyping, assembly and calibration tests for missions under development in the JEM-EUSO framework, such as:1.Hardware: Optimization and testing of prototypes based on solid state detectors such as Silicon Photomultipliers, and Multi-Anode Photomultipliers used by the Mini-EUSO experiment; 2.Calibration and Tests: Validation of the statistical distributions of the signals (dark field and flat field calibrations) and multiple tests for the Mini-EUSO experiment;3.Software: Development of a robust control software for automatic data acquisition with the secondary cameras on board the Mini-EUSO experiment;4.System Monitoring: Check of the data acquisition system for the Multi-Anode Photomultipliers installed on the NASA-funded superpressure balloon EUSO-SPB, during balloon flight operations in April 2017 and report of eventual malfunctioning;
System Integration: Partecipation to the assembly of the Mini-EUSO experiment.

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Observatory science with eXTP (2019)
  • Author(s): Zand J.J.M., E. Bozzo, J. Qu, X.D. Li, L. Amati et al. (187 authors in total inalphabetical order; S. Turriziani is the 164’th author),
  • Journal Title: Sci. China-Phys. Mech. Astron Volume: 62 Pages: 29506.
  • DOI: https://doi.org/10.1007/s11433-017-9186-1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] EUSO-TA - First results from a ground-based EUSO telescope (2018)
  • Author(s): The JEM-EUSO collaboration (314 authors in total in alphabetical order; S. Turriziani is the 295’th author)
  • Journal Title: Astroparticle Physics Volume: 102 Pages: 98-111
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere (2018)
  • Author(s): The JEM-EUSO collaboration (342 authors in total in alphabetical order; S. Turriziani is the 310’th author)
  • Journal Title: Journal of Instrumentation Volume: 13,05 Pages: P05023
  • Peer Reviewed / Int'l Joint Research