3-10 August 2016
Chicago IL USA
US/Central timezone
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Performance evaluation of a panoramic coded aperture gamma camera at CMS

Aug 8, 2016, 6:30 PM
Riverwalk A/B

Riverwalk A/B

Poster Detector: R&D and Performance Poster Session


Mr Florent Bonnet (Canberra (FR)) Mr Vincenzo Paradiso (CERN)


Gamma imaging allows operators to determine the position of radioactive sources or hotspots from greater distances than conventional rate meters, better aligning with ALARA principles, which are a common priority for all fields in the nuclear domain. A panoramic prototype gamma imager has recently been developed, based on a hybrid pixel detector, which consists of a 1 mm thick CdTe substrate, bump-bonded to the Timepix readout chip developed by the Medipix2 collaboration (256 x 256 pixels, 55 μm pitch, 14.08 x 14.08 mm2 sensitive area). A unique coded aperture is used, allowing for background subtraction without the use of heavy shielding, along with a method to extend the field-of-view (FOV) of the system. The output of each measurement is 360° x 60° and it has been rendered in spherical coordinates (θ, φ). The Compact Muon Solenoid (CMS) at the Large Hadron Collider (LHC), its requirements and protocols have been used as a test and demonstration platform and a description of the experimental results is presented.

Primary authors

Mr Florent Bonnet (Canberra (FR)) Mr Vincenzo Paradiso (CERN)


Ms Audrey Patoz (Canberra (FR)) Mr Nabil MENAA (Canberra (FR)) Mr Stephane Bally (CERN)

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