Detector developments for high performance Muography applications
| Autor: | Gábor Nyitrai, László Oláh, Takao Ohminato, H. K. Tanaka, G. Hamar, D. Varga, Gábor Galgóczi |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Nuclear and High Energy Physics Muon Physics::Instrumentation and Detectors business.industry Detector 010502 geochemistry & geophysics 01 natural sciences Term (time) Power (physics) law.invention Telescope Optics Data acquisition law 0103 physical sciences Muography High Energy Physics::Experiment Angular resolution 010306 general physics business Instrumentation 0105 earth and related environmental sciences |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 958:162236 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/j.nima.2019.05.077 |
| Popis: | Muography allows imaging of large scale objects using cosmic muons . As the observation point needs to be below the object of interest, either the detector is placed underground, and can reveal density structures, or, the detector can be on the surface and look sideways, capturing muons closer to the horizon. As the measurement time is fundamentally limited by the muon flux, long term operation must be achieved with high efficiency. Furthermore, reasonable imaging from a large distance requires good angular resolution. The relevance of addressing the out-of-laboratory environment is demonstrated on the example of a 4 square metre telescope targeting the Sakurajima volcano in Japan. For open air detectors, the suppression of the low energy (non penetrating) muon background can be reached with a telescope using absorber (scatterer) layers between detector layers with good position resolution. The presented Muography Observation System achieves that using MWPC-s, combined with the relevant servicing systems providing reliable power and gas supply, as well as data acquisition and transfer. |
| Databáze: | OpenAIRE |
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