18-22 February 2019
Vienna University of Technology
Europe/Vienna timezone

Detector developments for high performance muography applications

Not scheduled
15m
Vienna University of Technology

Vienna University of Technology

Gusshausstraße 27-29, 1040 Wien
Board: 3
Poster Astroparticle Detectors Poster Session B

Speaker

Dr Dezső Varga (Hungarian Academy of Sciences (HU))

Description

Imaging with cosmic muons dates back by decades, initiated by searching for hidden structures in the Chephren pyramid by Alvarez. Since then, the term “muography” was coined for this possibility offered by nature’s highly penetrating particles, and can be applied for imaging various large scale objects. 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.

In both cases, long term operation must be achieved with high efficiency and at good angular resolution. The presentation introduces the technological possibilities and solutions. The relevance of the out-of-laboratory environment is demonstrated on the example of a 4 square meter telescope targeting the Sakurajima volcano in Japan, and various underground applications including natural caves.

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 resulting Muography Observation System, using MWPC-s with contemporary solutions, allows muographic imaging through 2 km of rock, with 10 m resolution from a distance of 3 km.

Primary authors

Dr Dezső Varga (Hungarian Academy of Sciences (HU)) Gábor Nyitrai (Wigner Research Centre for Physics, Budapest (HU)) Dr Gergő Hamar (Hungarian Academy of Sciences (HU)) Dr László Oláh (Hungarian Academy of Sciences (HU)) Gábor Galgóczi (Hungarian Academy of Sciences (HU)) Prof. Hiroyuki Tanaka (Earthquake Research Institute, The University of Tokyo) Dr Takao Ohminato ( Earthquake Research Institute, The University of Tokyo)

Presentation Materials