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Title: Muon trackers for imaging a nuclear reactor

A detector system for assessing damage to the cores of the Fukushima Daiichi nuclear reactors by using cosmic-ray muon tomography was developed. Furthermore, the system consists of a pair of drift-tube tracking detectors of 7.2× 7.2-m 2 area. In each muon tracker there consists 6 x-layer and 6 y-layer drift-tube detectors. Each tracker is capable of measuring muon tracks with 12 mrad angular resolutions, and is capable of operating under 50-μ Sv/h radiation environment by removing gamma induced background with a novel time-coincidence logic. An estimated resolution to observe nuclear fuel debris at Fukushima Daiichi is 0.3 m when the core is imaged from outside the reactor building.
Authors:
 [1] ;  [1] ; ORCiD logo [2] ;  [2] ;  [3] ; ORCiD logo [2] ;  [1] ; ORCiD logo [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Toshiba Corporation, Yokohama (Japan)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Decision Science International Corporation, Poway, CA (United States)
Publication Date:
Report Number(s):
LA-UR-17-24644
Journal ID: ISSN 1748-0221
Grant/Contract Number:
AC52-06NA25396; NFE-14-0019
Type:
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 11; Journal Issue: 09; Journal ID: ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE; Toshiba Corporation
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Detection of defects; Detection of explosives; Radiation monitoring; Search for radioactive and fissile materials; muon imaging; muon scattering; Fukushima Daiichi
OSTI Identifier:
1406226

Kume, N., Miyadera, H., Morris, C. L., Bacon, J., Borozdin, K. N., Durham, J. M., Fuzita, K., Guardincerri, E., Izumi, M., Nakayama, K., Saltus, M., Sugita, T., Takakura, K., and Yoshioka, K.. Muon trackers for imaging a nuclear reactor. United States: N. p., Web. doi:10.1088/1748-0221/11/09/P09008.
Kume, N., Miyadera, H., Morris, C. L., Bacon, J., Borozdin, K. N., Durham, J. M., Fuzita, K., Guardincerri, E., Izumi, M., Nakayama, K., Saltus, M., Sugita, T., Takakura, K., & Yoshioka, K.. Muon trackers for imaging a nuclear reactor. United States. doi:10.1088/1748-0221/11/09/P09008.
Kume, N., Miyadera, H., Morris, C. L., Bacon, J., Borozdin, K. N., Durham, J. M., Fuzita, K., Guardincerri, E., Izumi, M., Nakayama, K., Saltus, M., Sugita, T., Takakura, K., and Yoshioka, K.. 2016. "Muon trackers for imaging a nuclear reactor". United States. doi:10.1088/1748-0221/11/09/P09008. https://www.osti.gov/servlets/purl/1406226.
@article{osti_1406226,
title = {Muon trackers for imaging a nuclear reactor},
author = {Kume, N. and Miyadera, H. and Morris, C. L. and Bacon, J. and Borozdin, K. N. and Durham, J. M. and Fuzita, K. and Guardincerri, E. and Izumi, M. and Nakayama, K. and Saltus, M. and Sugita, T. and Takakura, K. and Yoshioka, K.},
abstractNote = {A detector system for assessing damage to the cores of the Fukushima Daiichi nuclear reactors by using cosmic-ray muon tomography was developed. Furthermore, the system consists of a pair of drift-tube tracking detectors of 7.2× 7.2-m2 area. In each muon tracker there consists 6 x-layer and 6 y-layer drift-tube detectors. Each tracker is capable of measuring muon tracks with 12 mrad angular resolutions, and is capable of operating under 50-μ Sv/h radiation environment by removing gamma induced background with a novel time-coincidence logic. An estimated resolution to observe nuclear fuel debris at Fukushima Daiichi is 0.3 m when the core is imaged from outside the reactor building.},
doi = {10.1088/1748-0221/11/09/P09008},
journal = {Journal of Instrumentation},
number = 09,
volume = 11,
place = {United States},
year = {2016},
month = {9}
}