Imaging of high-Z material for nuclear contraband detection with a minimal prototype of a Muon Tomography station based on GEM detectors
arXiv:1007.0256 · doi:10.1016/j.nima.2011.01.163
Abstract
Muon Tomography based on the measurement of multiple scattering of atmospheric cosmic ray muons in matter is a promising technique for detecting heavily shielded high-Z radioactive materials (U, Pu) in cargo or vehicles. The technique uses the deflection of cosmic ray muons in matter to perform tomographic imaging of high-Z material inside a probed volume. A Muon Tomography Station (MTS) requires position-sensitive detectors with high spatial resolution for optimal tracking of incoming and outgoing cosmic ray muons. Micro Pattern Gaseous Detector (MPGD) technologies such as Gas Electron Multiplier (GEM) detectors are excellent candidates for this application. We have built and operated a minimal MTS prototype based on 30cm \times 30cm GEM detectors for probing targets with various Z values inside the MTS volume. We report the first successful detection and imaging of medium-Z and high-Z targets of small volumes (~0.03 liters) using GEM-based Muon Tomography.
References in corpus (5)
- The Micromegas detector of the CAST experiment
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- Design and Construction of a First Prototype Muon Tomography System with GEM Detectors for the Detection of Nuclear Contraband
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- A High Spatial Resolution Muon Tomography Prototype System based on Micromegas Detector
- Detecting Special Nuclear Material Using Muon-Induced Neutron Emission
- Towards a muon scattering tomography system for both low-Z and high-Z materials
- Performance in Test Beam of a Large-area and Light-weight GEM detector with 2D Stereo-Angle (U-V) Strip Readout
- Studies of the delayed discharge propagation in the Gas Electron Multiplier (GEM)
- Mountain muon tomography using a liquid scintillator detector
- Effect of hole geometry on charge sharing and other parameters in GEM-based detectors
- Micro-Pattern Gas Detectors for Charged-Particle Tracking and Muon Detection
- A New Semi-Empirical Model for Cosmic Ray Muon Flux Estimation
- A Prototype Scalable Readout System for Micro-pattern Gas Detectors
- A Volume Clearing Algorithm for Muon Tomography
- A Compact High-Resolution Muon Spectrometer Using Multi-Layer Gas Cherenkov Radiators
- Gas electron multiplier based on laser-perforated CVD diamond film: First tests
- Development and Commissioning of a Compact Cosmic Ray Muon Imaging Prototype
- A muon scattering tomography system based on high spatial resolution scintillating detector