NDLI: Detection and imaging of high-Z materials with a muon tomography station using GEM detectors

Content Provider	IEEE Xplore Digital Library
Author	Gnanvo, K. Benson, B. Bittner, W. Costa, F. Grasso, L. Hohlmann, M. Locke, J.B. Martoiu, S. Muller, H. Staib, M. Tarazona, A. Toledo, J.
Copyright Year	2010
Description	Author affiliation: I3M Institute, Universidad Politécnica de Valencia, Valencia, Spain (Tarazona, A.; Toledo, J.) \|\| Department of Physics and Space Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA (Gnanvo, K.; Benson, B.; Bittner, W.; Grasso, L.; Hohlmann, M.; Locke, J.B.; Staib, M.) \|\| CERN, Geneva, CH 1211, Switzerland (Costa, F.; Martoiu, S.; Muller, H.)
Abstract	Muon tomography based on the measurement of multiple scattering of atmospheric cosmic ray muons is a promising technique for detecting and imaging heavily shielded high-Z nuclear materials such as enriched uranium. This technique could complement standard radiation detection portals currently deployed at international borders and ports, which are not very sensitive to heavily shielded nuclear materials. We image small targets in 3D using 2×2×2 $mm^{3}$ voxels with a minimal muon tomography station prototype that tracks muons with Gas Electron Multiplier (GEM) detectors read out in 2D with x-y microstrips of 400 μm pitch. With preliminary electronics, the GEM detectors achieve a spatial resolution of 130 μm in both dimensions. With the next GEM-based prototype station we plan to probe an active volume of ∼27 liters. We present first results on reading out all 1536 microstrips of a 30×30 $cm^{2}$ GEM detector for the next muon tomography prototype with final frontend electronics and DAQ system. This constitutes the first full-size implementation of the Scalable Readout System (SRS) recently developed specifically for Micropattern Gas Detectors by the RD51 collaboration. Design of the SRS and first performance results when reading out GEM detectors are presented.
Starting Page	552
Ending Page	559
File Size	2135858
Page Count	8
File Format	PDF
ISBN	9781424491063
ISSN	10957863
e-ISBN	9781424491056
DOI	10.1109/NSSMIC.2010.5873822
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Mesons Tomography Spatial resolution Three dimensional displays Data acquisition Software Scalable Readout System Muon Tomography Multiple Scattering MPGD GEM Detector High-Z materials
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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