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| Titel |
Development and evaluation of a time-dependent radiographic technology by using a muon read out module |
| VerfasserIn |
T. Kusagaya, T. Uchida, H. K. M. Tanaka, M. Tanaka |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250071146
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| Zusammenfassung |
| We will present a real-time monitoring system for cosmic-ray muon radiography as an
application of a readout module developed by T. Uchida et al [1,2]. The readout module was
developed originally for probing the internal structure of volcanoes in 2008 [3]. Its features
are small in size, low power consumption, and the capability to access remotely via Ethernet.
The current statistics data of cosmic-ray muons can be read from a PC placed far from the
module at anytime. By using this feature, we constructed a real-time monitoring system. As a
test experiment, we observed fluid movement in a cylinder with a diameter of 112 meters
water equivalent.
In this work, we succeeded to resolve the fluid movement in the cylinder. We varied the
fluid level inside the cylinder and measured the muon intensity. We found that the muon
intensity correlates inversely with the fluid level: the muon intensity increases for the lower
fluid level and decreases for the higher fluid level. Although the time resolution of
muon radiography was sufficient to resolve changes in the fluid level, an adequate
time window has to be chosen for different operating conditions. We anticipate that
this system will be applicable to exploring high-speed phenomena in a gigantic
object.
References
[1] T. Uchida, H. K. M. Tanaka, and M. Tanaka, Space Saving and Power Efficient
Readout System for Cosmic-Ray Muon Radiography, IEEE Transactions on Nuclear Science,
Vol. 56, No.2, pp. 448-452, Apr., 2009.
[2] T. Uchida, H K. M. Tanaka, and M. Tanaka, Development of a muon radiographic
imaging electronic board system towards a stable solar power operation, Earth Planets Space,
Vol. 62, No. 2, pp. 167-172, Feb., 2010.
[3] H.K.M. Tanaka, T. Uchida, M. Tanaka, and H. Shinohara, Cosmic-ray muon imaging
of magma in a conduit: Degassing process of Satsuma-Iwojima Volcano, Japan, Geophysical
Research Letters, Vol. 36, L01304, pp. 1-5, Jan., 2009. |
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