Characterization of a large-area iQID imager for safeguards applications

Clarke, Ardelia M.; McDonald, Ben S.; Zalavadia, Mital A.; Kasparek, Dustin M.; Miller, Brian W.

doi:10.1016/j.nima.2018.08.084

Title: Characterization of a large-area iQID imager for safeguards applications

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Abstract

Environmental sampling and sample analyses by the International Atomic Energy Agency is a key method for verifying declarations in international safeguards agreements. Quantitative Digital Autoradiography for Environmental Samples is a system developed by Pacific Northwest National Laboratory to examine environmental swipe samples (ESS) prior to subsequent, destructive analysis. This approach is passive and noninvasive for imaging beta and gamma emissions, which transmit through the plastic bags containing the ESS. Alpha particle imaging is also possible with different ESS containers. This technology is based on a portable, real-time, event-counting, high spatial resolution system called iQID (ionizing-radiation Quantum Imaging Detector), which is made from commercial, off-the-shelf components. This includes a scintillator in direct contact with a micro-channel plate image intensifier and a lens for imaging the intensified scintillation events onto a CCD/CMOS camera. The QDARES large-area iQID includes a fiber-optic taper coupled to the image intensifier which increases the imaging area to a ~100 cm square with a 105 mm x 105 mm taper. In this study, we describe new characterization results, including spatial resolution, energy response, minimum detectable activity for several isotopes, detector uniformity, and count-rate capability.

Authors:

Clarke, Ardelia M. ^[1]; McDonald, Ben S. ^[1]; Zalavadia, Mital A. ^[1]; Kasparek, Dustin M. ^[1]; Miller, Brian W. ^[2]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Univ. of Arizona, Tucson, AZ (United States); Univ. of Colorado, Boulder, CO (United States)

Publication Date:: Mon Sep 17 00:00:00 EDT 2018

Research Org.:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1477776

Alternate Identifier(s):: OSTI ID: 1636297

Report Number(s):: PNNL-SA-136771
Journal ID: ISSN 0168-9002; PII: S0168900218310428

Grant/Contract Number:: AC05-76RL01830

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Additional Journal Information:: Journal Volume: 954; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; iQID; Digital autoradiography; Ionizing radiation; Characterization; Safeguards

Citation Formats


                    Clarke, Ardelia M., McDonald, Ben S., Zalavadia, Mital A., Kasparek, Dustin M., and Miller, Brian W. Characterization of a large-area iQID imager for safeguards applications.  United States: N. p., 2018. 
Web.  doi:10.1016/j.nima.2018.08.084.

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                    Clarke, Ardelia M., McDonald, Ben S., Zalavadia, Mital A., Kasparek, Dustin M., & Miller, Brian W. Characterization of a large-area iQID imager for safeguards applications.  United States.  https://doi.org/10.1016/j.nima.2018.08.084

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                    Clarke, Ardelia M., McDonald, Ben S., Zalavadia, Mital A., Kasparek, Dustin M., and Miller, Brian W. Mon .  
"Characterization of a large-area iQID imager for safeguards applications".  United States.  https://doi.org/10.1016/j.nima.2018.08.084.  https://www.osti.gov/servlets/purl/1477776.

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@article{osti_1477776,

  title        = {Characterization of a large-area iQID imager for safeguards applications},

  author       = {Clarke, Ardelia M. and McDonald, Ben S. and Zalavadia, Mital A. and Kasparek, Dustin M. and Miller, Brian W.},

  abstractNote = {Environmental sampling and sample analyses by the International Atomic Energy Agency is a key method for verifying declarations in international safeguards agreements. Quantitative Digital Autoradiography for Environmental Samples is a system developed by Pacific Northwest National Laboratory to examine environmental swipe samples (ESS) prior to subsequent, destructive analysis. This approach is passive and noninvasive for imaging beta and gamma emissions, which transmit through the plastic bags containing the ESS. Alpha particle imaging is also possible with different ESS containers. This technology is based on a portable, real-time, event-counting, high spatial resolution system called iQID (ionizing-radiation Quantum Imaging Detector), which is made from commercial, off-the-shelf components. This includes a scintillator in direct contact with a micro-channel plate image intensifier and a lens for imaging the intensified scintillation events onto a CCD/CMOS camera. The QDARES large-area iQID includes a fiber-optic taper coupled to the image intensifier which increases the imaging area to a ~100 cm square with a 105 mm x 105 mm taper. In this study, we describe new characterization results, including spatial resolution, energy response, minimum detectable activity for several isotopes, detector uniformity, and count-rate capability.},

  doi          = {10.1016/j.nima.2018.08.084},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = ,

  volume       = 954,

  place        = {United States},

  year         = {Mon Sep 17 00:00:00 EDT 2018},

  month        = {Mon Sep 17 00:00:00 EDT 2018}

}

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