Analysis of 14-MeV neutron induced gamma-ray spectra using multiwavelets

Barzilov, Alexander; Kessler, Bruce; Womble, Phillip C.

doi:10.1016/j.radmeas.2015.06.007

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…The gamma ray FWHM energy resolution of the CLYC sensor was measured as less than 5% at 662 keV (see Table 1 ) using a 137 Cs source. To determine the peak’s centroids and intensities for further identification of gamma sources, the spectrum should be automatically processed using spectral analysis algorithms [ 44 , 45 , 46 ]. Considering the limitations of the UAS’s Odroid minicomputer, a peak analysis algorithm based on the Mariscotti method [ 47 , 48 ] was programmed as a function in ROS.…”

Section: Resultsmentioning

confidence: 99%

Unmanned Aerial System Integrated Sensor for Remote Gamma and Neutron Monitoring

Barzilov

Kazemeini

2020

Sensors

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Tools for remote radiation sensing are essential for environmental safety and nuclear power applications. The use of unmanned aerial systems (UASs) equipped with sensors allows for substantially reducing the radiation exposure of personnel. An ambient temperature Cs2LiYCl6:Ce3+ (CLYC) elpasolite scintillation sensor for simultaneous gamma and neutron measurements was designed as a user-friendly “plug and fly” module integrated into an octocopter robotic platform. Robot Operating System (ROS) was used to analyze the sensor’s data. The measured CLYC’s energy resolution was <5% at 662 keV gamma rays; neutron flux was measured using 6Li(n,α)t reaction. Time and GPS data were combined with radiation data in the ROS, supporting real time monitoring and assessment tasks, as well as radiation source search missions. Because UASs can be irradiated, radiation damage of the sensor and robot’s electronics was estimated using FLUKA code.

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Section: Resultsmentioning

confidence: 99%

Unmanned Aerial System Integrated Sensor for Remote Gamma and Neutron Monitoring

Barzilov

Kazemeini

2020

Sensors

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“…of photons emitted by a 137 Cs source measured using the CLYC sensor is shown in Figure 5(b). In order to determine the peaks, their centroids and intensities for further identification and quantification of gamma emitters, the spectrum should be automatically processed using spectral analysis algorithms [15,16]. Taking into account the limitations of the onboard Odroid computer, a peak analysis algorithm based on the Mariscotti method [17] was programmed as a function within ROS.…”

Section: Dual Mode Radiation Measurementsmentioning

confidence: 99%

Dual-Mode Radiation Sensor for UAS Platforms

Barzilov

Kazemeini

2019

The 6th International Electronic Conference on Sensors and Applications

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Remote sensing technologies are important for radiation safety and environmental security applications. A dual-mode Cs2LiYCl6:Ce3+ (CLYC) sensor was developed for simultaneous neutron measurements and gamma-ray spectroscopy. To keep users away from hazardous areas, an unmanned aerial system was used as a mobile sensor platform. The sensor was integrated into a multicopter platform as a ‘plug and fly’ component allowing deployment in the field conditions. The photon energy resolution of the CLYC sensor was measured as less than 5% at 662 keV. The detection of neutrons was achieved via 6Li(n,α)t reaction. The sensor’s signal communication and data fusion were programmed using robot operating system framework, as well as on-board signal analysis functions including the neutron-photon pulse shape discrimination and the identification of photo peaks in the gamma spectrum. These data with added real-time kinematic GPS and time stamps were reported to the user enabling real time awareness of the monitored area, further analysis in temporal and spatial domains, and radiation mapping and source search tasks.

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