A Comparison of Fast Inorganic Scintillators for Thermal Neutron Analysis Landmine Detection

McFee, John E.; Faust, Anthony A.; Andrews, H. R.; Kovaltchouk, V.; Clifford, E. T. H.; Ing, H.

doi:10.1109/tns.2009.2018558

Cited by 23 publications

(8 citation statements)

References 14 publications

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“…These materials have been well-known for a long time. For instance, barium fluoride is the fastest known inorganic scintillator (decay time ) [2], [3]. Peaks of very fast emission at about 190 and 220 nm so-called core-valence luminescence and a broad peak at about 300 nm were observed in [4].…”

Section: Introductionmentioning

confidence: 99%

Temperature Dependence of ${\rm Ce}^{3+}$ and ${\rm Pr}^{3+}$ Emission in ${\rm CaF}_{2}$, ${\rm BaF}_{2}$, ${\rm SrF}_{2}$

Shendrik

Раджабов

2010

IEEE Trans. Nucl. Sci.

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Section: Introductionmentioning

confidence: 99%

Temperature Dependence of ${\rm Ce}^{3+}$ and ${\rm Pr}^{3+}$ Emission in ${\rm CaF}_{2}$, ${\rm BaF}_{2}$, ${\rm SrF}_{2}$

Shendrik

Раджабов

2010

IEEE Trans. Nucl. Sci.

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“…In addition, the frequency of the induction currents gives the type of explosive [53] [54]. Because of the nature of the NQR method, low sensitivity that is a result of low resonant frequencies (0.5 -6 MHz) is a big problem [55]. For that reason, powerful detection systems have to be used by this method.…”

Section: Nuclear Quadrupole Resonance (Nqr) Methodsmentioning

confidence: 99%

Performance Analysis of Techniques Used for Determining Land Mines

Ege¹,

Kakilli²,

Kılıç³

et al. 2014

IJG

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Today, remote sensing is used for different methods and different purposes. In all of the detection methods, some considerations such as low energy consumption, low cost, insensitivity to environmental changes, high accuracy, high reliability and robustness become important. Taking into account these facts, remote sensing methods are used in applications such as geological and archeological research, engineering areas, health services, preserving and controlling natural life, determination of underground sources, controlling air, sea and road traffic, military applications, etc. The method to be used is based on the object type to be detected, material to be made, and location to be found. The remote sensing methods from the past up to today can be listed as acoustic and seismic, ground penetration radar (GPR) detection, electromagnetic induction, infrared (IR) imaging, neutron quadrupole resonance (NQR), thermal neutron activation (TNA), neutron back scattering, X-ray back scattering, and magnetic anomaly detection. In these methods, detected raw images have to be processed, filtered and enhanced. In order to achieve these operations, some algorithms are needed to be developed. In this study, the methods used in detecting land mines remotely and their performance analysis have been given. In this way, the last situation on the advantages and disadvantages of methods used, application areas and detection accuracies are determined. Furthermore, the algorithms such as transmission line matrix (TLM), finite difference time-domain (FDTD), the method of moment (MoM), split step parabolic equation (SSPE) and image processing and intelligent algorithms are presented in detail.

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“…The radiation damage of sodium iodide occurs at an adsorption dose of 500-1000 Gy [43], which is not accumulated in real time when conducting neutron-gamma analysis. [38,39] * Effective atomic number is calculated by [40]. Table 3.…”

Section: Nai(tl)mentioning

confidence: 99%

“…This detector has stable gamma ray spectra parameters when properly shielded against direct neutron flux from the neutron source. It is the best candidate for active neutron applications, but the high cost of this detector (7.62 cm · 7.62 cm LaBr 3 (Ce) costs~US$35,000 vs US$2,000 for a high quality NaI(Tl) of similar size [39]) limits a wider use compared to NaI(Tl) and BGO detectors.…”

Section: Labr 3 (Ce)mentioning

confidence: 99%

Neutron-Stimulated Gamma Ray Analysis of Soil

Kavetskiy¹,

Yakubova²,

Torbert³

2017

New Insights on Gamma Rays

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This chapter describes technical aspects of neutron-stimulated gamma ray analysis of soil carbon. The introduction covers general principles, different modifications of neutron-gamma analysis, measurement system configuration, and advantages of this method for soil carbon analysis. Problems with neutron-gamma technology in soil carbon analysis and methods of investigations including Monte-Carlo simulation of neutron interaction with soil elements are discussed further. Based on the investigation results, a method of extracting the "soil carbon net peak" from the raw acquired data was developed. The direct proportional dependency between the carbon net peak area and average carbon weight percent in the upper 10 cm soil layer for any carbon depth profile was shown. Calibration of the measurement system using sand-carbon pits and field measurements of soil carbon are described. Measurement results compared to chemical analysis (dry combustion) data demonstrated good agreement between the two methods. Thus, neutron-stimulated gamma ray analysis can be used for in situ determination of near-surface soil carbon content and is applicable for precision geospatial mapping of soil carbon.

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A Comparison of Fast Inorganic Scintillators for Thermal Neutron Analysis Landmine Detection

Cited by 23 publications

References 14 publications

Temperature Dependence of ${\rm Ce}^{3+}$ and ${\rm Pr}^{3+}$ Emission in ${\rm CaF}_{2}$, ${\rm BaF}_{2}$, ${\rm SrF}_{2}$

Temperature Dependence of ${\rm Ce}^{3+}$ and ${\rm Pr}^{3+}$ Emission in ${\rm CaF}_{2}$, ${\rm BaF}_{2}$, ${\rm SrF}_{2}$

Performance Analysis of Techniques Used for Determining Land Mines

Neutron-Stimulated Gamma Ray Analysis of Soil

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