Gamma–neutron imaging system utilizing pulse shape discrimination with CLYC

Whitney, Chad; Pandian, Lakshmi Soundara; Johnson, Erik B.; Vogel, Sam; Vinci, Bob; Squillante, Michael R.; Głodo, J.; Christian, James F.

doi:10.1016/j.nima.2014.09.022

Cited by 31 publications

(20 citation statements)

References 10 publications

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“…Virtually every type of photon detector is able to measure H* (10), but the preferable one is the proportional counter, which is able to discriminate between radiation types and provides the corresponding spectrometric information. It also has a small dead time effect and can tolerate high radiation levels.…”

Section: Main Results and Conclusion 221 Environmental Radiation Mmentioning

confidence: 99%

“…However, the challenge for the initial characterisation of nuclear facilities subject to a decommissioning programme remains the design of neutron cameras that are as compact and robust as possible, so that they can be used in constrained environments while remaining sufficiently sensitive to neutrons and optimizing the angular resolution. Potentially good compromises in this aspect have been proposed by Whitney et al [10] and Lynde et al [11].…”

Section: Laser-induced Breakdown Spectroscopy and Radiation Camerasmentioning

confidence: 99%

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INSIDER WP5 (in situ measurements): developed activities, main results and conclusions

Herranz

Idoeta

Amgarou

et al. 2020

EPJ Nuclear Sci. Technol.

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Within the INSIDER project, the WP5 (in situ measurements) has been tasked with analysing the existing systems and methodologies for carrying out these types of measurements in constrained environments, aiming to classify and categorise these environments. An additional task is to organise the participation in in situ intercomparison exercises in real situations, defining the most suitable equipment to carry these out. This paper presents the activities of the WP5 and a summary of the main results obtained in these activities after the first two years of work.

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Section: Main Results and Conclusion 221 Environmental Radiation Mmentioning

confidence: 99%

Section: Laser-induced Breakdown Spectroscopy and Radiation Camerasmentioning

confidence: 99%

INSIDER WP5 (in situ measurements): developed activities, main results and conclusions

Herranz

Idoeta

Amgarou

et al. 2020

EPJ Nuclear Sci. Technol.

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“…The choice of materials in passive masks mainly depends on the type of target radiation. High density/atomic number materials such as lead, tungsten and depleted uranium are often used to block high energy photons, while neutron absorbing materials such as high-density polyethylene (HDPE) and Gadolinium are used in coded apertures for neutron detection [39,40]. Passive physical collimation shows noticeable drawbacks over a considerable range of the energy spectrum, especially at high energies where radiation fields have enough energy to penetrate the opaque pattern of the mask [41,42,43].…”

Section: Physical and Electronic Collimationsmentioning

confidence: 99%

Passive Gamma-Ray and Neutron Imaging Systems for National Security and Nuclear Non-Proliferation in Controlled and Uncontrolled Detection Areas: Review of Past and Current Status

Hamrashdi

Monk

Cheneler

2019

Sensors

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Global concern for the illicit transportation and trafficking of nuclear materials and other radioactive sources is on the rise, with efficient and rapid security and non-proliferation technologies in more demand than ever. Many factors contribute to this issue, including the increasing number of terrorist cells, gaps in security networks, politically unstable states across the globe and the black-market trading of radioactive sources to unknown parties. The use of passive gamma-ray and neutron detection and imaging technologies in security-sensitive areas and ports has had more impact than most other techniques in detecting and deterring illicit transportation and trafficking of illegal radioactive materials. This work reviews and critically evaluates these techniques as currently utilised within national security and non-proliferation applications and proposes likely avenues of development.

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“…It is well known that a scintillation pulse shape changes with change of type of excitation (γ-rays, neutrons, α particles, high energy ions) [7][8][9][10][11][12][13]. This phenomenon is commonly used for particle discrimination in variety of applications [14][15][16][17]. However, the origin and the exact mechanism are still not known.…”

Section: Introductionmentioning

confidence: 99%