A compact, high resolution tracker for cosmic ray muon scattering tomography using semiconductor sensors


Type
Article
Change log
Authors
Keizer, F 
Gorbatch, A 
Parker, MA 
Steer, C 
Wotton, SA 
Abstract

© 2018 IOP Publishing Ltd and Sissa Medialab. A semiconductor tracker for muon scattering tomography is presented. The tracker contains silicon strip sensors with an 80 μm pitch, precision mechanics and integrated cooling. The electronic readout of the sensors is performed by a scalable, inexpensive, flexible, FPGA-based system, which is demonstrated to achieve an event rate of 30 kHz. The tracker performance is compared with a Geant4 simulation. A scattering angle resolution compatible with 1.5 mrad at the 4 GeV average cosmic ray muon energy is demonstrated. Images of plastic, iron and lead samples are obtained using an Angle Statistics Reconstruction algorithm. The images demonstrate good contrast between low and high atomic number materials.

Description
Keywords
Front-end electronics for detector readout, Search for radioactive and fissile materials, Particle tracking detectors (Solid-state detectors), Interaction of radiation with matter
Journal Title
Journal of Instrumentation
Conference Name
Journal ISSN
1748-0221
1748-0221
Volume Title
13
Publisher
IOP Publishing
Sponsorship
Science and Technology Facilities Council (ST/H001093/2)
Science and Technology Facilities Council (ST/K001361/1)
Science and Technology Facilities Council (ST/N000234/1)
Science and Technology Facilities Council (ST/R504671/1)