학술논문
Muon radiography with the CMS Muon Barrel chambers
Document Type
Conference
Author
Benettoni, M.; Bonomi, G.; Calvini, P.; Checchia, P.; Conti, E.; Dainese, A.; Fabris, D.; Gasparini, F.; Gasparini, U.; Gonella, F.; Lunardon, M.; Meneguzzo, A. T.; Morando, M.; Moretto, S.; Nebbia, G.; Pegoraro, M.; Pesente, S.; Ronchese, P.; Squarcia, S.; Torassa, E.; Vanini, S.; Viesti, G.; Zenoni, A.; Zumerle, G.
Source
2007 IEEE Nuclear Science Symposium Conference Record Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE. 2:1021-1025 Oct, 2007
Subject
Language
ISSN
1082-3654
Abstract
The drift tube chambers developed for the Muon Barrel system of the CMS experiment at CERN are large area detectors with 8 measurement points in one direction and 4 in the other; each point has a resolution of about 200 μm. We are using two of such chambers for muon radiography, i.e. the detection and imaging of material with high atomic number Z through the measurement of the multiple scattering of cosmicray muons crossing the material itself. The chambers are selftriggered, using the trigger electronics developed for the CMS experiment. Such technique might be applied for example in cargo container inspection searching for high-Z materials. Our apparatus is composed by two chambers with a 7 m 2 active area. In the gap between the chambers a container and the target material can be placed. Other two drift tube chambers, each with 4 measurement points, interleaved by a thick plane of Fe, give a rough determination of the cosmic muon momentum. We present results on the detection capability and performance of the system.