ComptonRec: Mastering conic sections for a direct 3D compton image reconstruction

Abstract-During nuclear decommissioning or waste management operations, a camera that could make an image of the contamination field and identify and quantify the contaminants would be a great progress. Compton cameras have been proposed, but their limited efficiency for high energy gamma rays and their cost have severely limited their application. Our objective is to promote a Compton camera for the energy range (200 keV -2 MeV) that uses fast scintillating crystals and a new concept for locating scintillation event: Temporal Imaging.Temporal Imaging uses monolithic plates of fast scintillators and measures photons time of arrival distribution in order to locate each gamma ray with a high precision in space (X,Y,Z), time (T) and energy (E). This provides a native estimation of the depth of interaction (Z) of every detected gamma ray. This also allows a time correction for the propagation time of scintillation photons inside the crystal, therefore resulting in excellent time resolution. The high temporal resolution of the system makes it possible to veto quite efficiently background by using narrow time coincidence (< 300 ps). It is also possible to reconstruct the direction of propagation of the photons inside the detector using timing constraints. The sensitivity of our system is better than 1 nSv/h in a 60 s acquisition with a 22 Na source.

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“…In our study, we have used the COMPTONREC software package, which consists in a direct method to reconstruct the source position [10].…”

Section: Gamma Ray Source Reconstructionmentioning

confidence: 99%

“…As presented in [10], the analytic direct method for source reconstruction we have used consists in computing the intersection of the conical surface defined by the Compton event with the plane that contains the source. This plane must be located inside the field of view of the Compton camera.…”

Section: A Principle Of Reconstructionmentioning

confidence: 99%

Temporal Imaging CeBr₃ Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Iltis¹,

Snoussi

Magalhaes³

et al. 2018

EPJ Web Conf.

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Compton Camera Imaging Sensitivity with Improved Event Selection

Mikeli

Tomazinaki

Stiliaris

2020

2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

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Radon Transform Adaptation in Compton Reconstruction Imaging

Tomazinaki,

Stiliaris

2022

2022 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

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ComptonRec: Mastering conic sections for a direct 3D compton image reconstruction

Cited by 8 publications

References 5 publications

Temporal Imaging CeBr₃ Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Temporal Imaging CeBr₃ Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Compton Camera Imaging Sensitivity with Improved Event Selection

Radon Transform Adaptation in Compton Reconstruction Imaging

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ComptonRec: Mastering conic sections for a direct 3D compton image reconstruction

Cited by 8 publications

References 5 publications

Temporal Imaging CeBr3 Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Temporal Imaging CeBr3 Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Compton Camera Imaging Sensitivity with Improved Event Selection

Radon Transform Adaptation in Compton Reconstruction Imaging

Contact Info

Product

Resources

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Temporal Imaging CeBr₃ Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management

Temporal Imaging CeBr₃ Compton Camera: A New Concept for Nuclear Decommissioning and Nuclear Waste Management