Implementation of an imaging spectrometer for localization and identification of radioactive sources

Lemaire, Hermine; Amgarou, K.; Khalil, Roger Abou; Angélique, Jean-Claude; Bonnet, F; Toro, D. De; Carrel, F.; Giarmana, O.; Gmar, M.; Menaa, N.; Ménesguen, Y.; Normand, S.; Patoz, A.; Schoepff, Vincent; Talent, Philippe; Timi, Tebug

doi:10.1109/animma.2013.6727912

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…There are several different devices available ‘off the shelf’ that demonstrate a higher precision radioactive source localisation. Lemaire et al [ 15 ] demonstrated the radioactive localisation of sources using a gamma camera GAMPIX [ 16 ]. Higher spatial resolution was achieved using MATLAB post-processing with the GAMPIX running in Time over Threshold (ToT) mode.…”

Section: Introductionmentioning

confidence: 99%

Radioactive Source Localisation via Projective Linear Reconstruction

White

Wood

Martin

et al. 2021

Sensors

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Radiation mapping, through the detection of ionising gamma-ray emissions, is an important technique used across the nuclear industry to characterise environments over a range of length scales. In complex scenarios, the precise localisation and activity of radiological sources becomes difficult to determine due to the inability to directly image gamma photon emissions. This is a result of the potentially unknown number of sources combined with uncertainties associated with the source-detector separation—causing an apparent ‘blurring’ of the as-detected radiation field relative to the true distribution. Accurate delimitation of distinct sources is important for decommissioning, waste processing, and homeland security. Therefore, methods for estimating the precise, ‘true’ solution from radiation mapping measurements are required. Herein is presented a computational method of enhanced radiological source localisation from scanning survey measurements conducted with a robotic arm. The procedure uses an experimentally derived Detector Response Function (DRF) to perform a randomised-Kaczmarz deconvolution from robotically acquired radiation field measurements. The performance of the process is assessed on radiation maps obtained from a series of emulated waste processing scenarios. The results demonstrate a Projective Linear Reconstruction (PLR) algorithm can successfully locate a series of point sources to within 2 cm of the true locations, corresponding to resolution enhancements of between 5× and 10×.

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Section: Introductionmentioning

confidence: 99%

Radioactive Source Localisation via Projective Linear Reconstruction

White

Wood

Martin

et al. 2021

Sensors

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“…The detection of radioactivity and its localization has become a main issue interesting nuclear industry (nuclear power plants dismantling, radioactive waste management, radiation protection, etc. ), environmental services, public health, homeland security as well as applications in medical imaging diagnosis and treatment [1]. Instruments dedicated to spatial radioactivity localization can be divided into two main categories: imaging detectors and gamma probes.…”

Section: Introductionmentioning

confidence: 99%

Development of a novel gamma probe for detecting radiation direction

et al. 2016

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Spatial localization of radioactive sources is currently a main issue interesting different fields, including nuclear industry, homeland security as well as medical imaging. It is currently achieved using different systems, but the development of technologies for detecting and characterizing radiation is becoming important especially in medical imaging. In this latter field, radiation detection probes have long been used to guide surgery, thanks to their ability to localize and quantify radiopharmaceutical uptake even deep in tissue. Radiolabelled colloid is injected into, or near to, the tumor and the surgeon uses a hand-held radiation detector, the gamma probe, to identify lymph nodes with radiopharmaceutical uptkake.The present work refers to a novel scintigraphic goniometric probe to identify gamma radiation and its direction. The probe incorporates several scintillation crystals joined together in a particular configuration to provide data related to the position of a gamma source. The main technical 1Corresponding author.

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Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

Giot

Vermeeren

Lyoussi

et al. 2017

EPJ Nuclear Sci. Technol.

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Abstract. The ANIMMA conferences offer a unique opportunity to discover research carried out in all fields of nuclear measurements and instrumentation with applications extending from fundamental physics to fission and fusion reactors, medical imaging, environmental protection and homeland security. After four successful editions of the Conference, it was decided to prepare a review based to a large extent but not exclusively on the papers presented during the first four editions of the conference. This review is organized according to the measurement methodologies: neutronic, photonic, thermal, acoustic and optical measurements, as well as medical imaging and specific challenges linked to data acquisition and electronic hardening. The paper describes the main challenges justifying research in these different areas, and summarizes the recent progress reported. It offers researchers and engineers a way to quickly and efficiently access knowledge in highly specialized areas.

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Implementation of an imaging spectrometer for localization and identification of radioactive sources

Cited by 3 publications

References 7 publications

Radioactive Source Localisation via Projective Linear Reconstruction

Radioactive Source Localisation via Projective Linear Reconstruction

Development of a novel gamma probe for detecting radiation direction

Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

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