Explosives Detection Using Magnetic And Nuclear Resonance Techniques
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Explosives Detection Using Magnetic And Nuclear Resonance Techniques
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Author : Jacques Fraissard
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-07-06
Explosives Detection Using Magnetic And Nuclear Resonance Techniques written by Jacques Fraissard and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-07-06 with Technology & Engineering categories.
Nuclear quadrupole resonance (NQR) a highly promising new technique for bulk explosives detection: relatively inexpensive, more compact than NMR, but with considerable selectivity. Since the NQR frequency is insensitive to long-range variations in composition, mixing explosives with other materials, such as the plasticizers in plastic explosives, makes no difference. The NQR signal strength varies linearly with the amount of explosive, and is independent of its distribution within the volume monitored. NQR spots explosive types in configurations missed by the X-ray imaging method. But if NQR is so good, why it is not used everywhere? Its main limitation is the low signal-to-noise ratio, particularly with the radio-frequency interference that exists in a field environment, NQR polarization being much weaker than that from an external magnetic field. The distinctive signatures are there, but are difficult to extract from the noise. In addition, the high selectivity is partly a disadvantage, as it is hard to build a multichannel system necessary to cover a wide range of target substances. Moreover, substances fully screened by metallic enclosures, etc. are difficult to detect. A workshop was held at St Petersburg in July 2008 in an attempt to solve these problems and make NQR the universal technique for the detection of bombs regardless of type. This book presents the essentials of the papers given there.
Signal Processing And Analysis Techniques For Nuclear Quadrupole Resonance Spectroscopy
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Author : Cristian Monea
language : en
Publisher: Springer Nature
Release Date : 2021-10-11
Signal Processing And Analysis Techniques For Nuclear Quadrupole Resonance Spectroscopy written by Cristian Monea and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-11 with Technology & Engineering categories.
This book is about improving prohibited substances detection using the nuclear quadrupole resonance (NQR) technique at security checkpoints. The book proposes multiple signal processing and analysis techniques for improving detection of dangerous or contraband substances, such as explosives, narcotics, or toxic substances. Also, several hardware solutions are described and implemented in a custom-designed NQR spectrometer. A new approach to NQR signal detection is introduced using artificial intelligence/deep learning techniques. The book will be useful for for researchers and practitioners in the areas of electrical engineering, signal processing and analysis, applied spectroscopy, as well as for security or laboratory equipment manufacturers.
Magnetic Resonance Detection Of Explosives And Illicit Materials
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Author : Tomaž Apih
language : en
Publisher: Springer
Release Date : 2013-10-02
Magnetic Resonance Detection Of Explosives And Illicit Materials written by Tomaž Apih and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-02 with Technology & Engineering categories.
Detection of concealed explosives is a notoriously difficult problem, and many different approaches have been proposed to solve this problem. Nuclear quadrupole resonance (NQR) is unique in many ways. It operates in a safe AM radio frequency range, and it can remotely detect unique “fingerprint” (NQR spectrum) of many explosives, such as TNT or RDX. As such, the detection of target does not depend on the shape or material of the container, or the presence of metallic object such as triggers etc. Spectra of chemically similar compounds differ enough that their presence never causes interference or false alarms. Unfortunately, widespread use is prevented due to low sensitivity, radiofrequency interference from the noisy environment, and inability to detect liquid explosives. This book presents current state of the art of the attempts to overcome NQR sensitivity problem, either by increasing the strengths of signals generated, or by increasing the specificity of the technique through a better understanding of the factors that affect the quadrupolar parameters of specific explosives. The use of these specific quadrupolar parameters is demonstrated on signal processing techniques that can detect weak signals, which are hidden in a noisy background. The problem of differentiation of liquid explosives and benign liquids in closed containers is approached by measurements of different nuclear magnetic resonance (NMR) parameters. As shown, a couple of solutions has reached a prototype stage and could find their use in a near future.
Explosives Detection
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Author : Lorenzo Capineri
language : en
Publisher: Springer Nature
Release Date : 2020-01-29
Explosives Detection written by Lorenzo Capineri and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-29 with Technology & Engineering categories.
This volume presents selected contributions from the “Advanced Research Workshop on Explosives Detection” hosted by the Department of Information Engineering of the University of Florence, Italy in 2018. The main goal of the workshop was to find out how Science for Peace and Security projects in the field of Explosives Detection contribute to the development and/or refinement of scientific and technical knowledge and competencies. The findings of the workshop, presented in the last section of the book, determine future actions and direction of the SPS Programme in the field of explosives detection and management.The NATO Science for Peace and Security (SPS) Programme, promotes dialogue and practical cooperation between NATO member states and partner nations based on scientific research, technological innovation and knowledge exchange. Several initiatives were launched in the field of explosive detection and clearance, as part of NATO’s enhanced role in the international fight against terrorism. Experts and scientists from NATO members and partner countries have been brought together in multi-year projects, within the framework of the SPS Programme, to cooperate in the scientific research in explosive detection field, developing new technologies and methods to be implemented in order to detect explosive substances in different contexts.
Reactive Oxygen Species Advances In Research And Application 2013 Edition
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Author :
language : en
Publisher: ScholarlyEditions
Release Date : 2013-05-01
Reactive Oxygen Species Advances In Research And Application 2013 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-01 with Science categories.
Reactive Oxygen Species—Advances in Research and Application: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Superoxides. The editors have built Reactive Oxygen Species—Advances in Research and Application: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Superoxides in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Reactive Oxygen Species—Advances in Research and Application: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Forensic And Environmental Detection Of Explosives
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Author : Jehuda Yinon
language : en
Publisher: John Wiley & Sons
Release Date : 1999-09-09
Forensic And Environmental Detection Of Explosives written by Jehuda Yinon and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-09-09 with Science categories.
Forensic and Environmental Detection of Explosives is the first comprehensive book on the detection of explosives. It combines the two main fields of application: * Forensic detection of explosives - the detection of hidden explosives in airfreight, luggage, vehicles, and on suspects. * Environmental detection of explosives - detecting on-site explosives in soil and water of contaminated areas and the detection of landmines. Dr Jehuda Yinon is a world renowned expert on the analysis of explosives and has served as consulting expert during the Oklahoma bombing trial, where his previous book Modern Methods and Applications in Analysis of Explosives was quoted by both the prosecution and defense experts. This new book complements the author's previous book on the analysis of explosives. It includes the following features: * Classifications of explosives * Explanations of the basic terms related to the detection of explosives * Vapor detection methods * Probing radiation methods * Tagging of explosives * Systems integration and performance testing * Detection of explosives in contaminated areas * Detection of landmines. This book is an ideal reference book for those working in forensic and law enforcement agencies concerned with the detection of hidden explosives, as well as for environmental scientists dealing with explosives decontamination. The book is also recommended as a text book for graduate students in analytical, environmental and forensic science.
Military Explosives
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Author :
language : en
Publisher:
Release Date : 1989
Military Explosives written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Explosives, Military categories.
Technology Against Terrorism
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Author :
language : en
Publisher:
Release Date : 1991
Technology Against Terrorism written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Government publications categories.
Technology Against Terrorism The Federal Effort
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Author :
language : en
Publisher: DIANE Publishing
Release Date :
Technology Against Terrorism The Federal Effort written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Detection Of Bulk Explosives Advanced Techniques Against Terrorism
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Author : Hiltmar Schubert
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Detection Of Bulk Explosives Advanced Techniques Against Terrorism written by Hiltmar Schubert and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Detection of Bulk Explosives: Advanced Techniques against Terrorism contains reviews of: existing and emerging bulk explosives detection techniques; scientific and technical policy of the Federal Border Service of the Russian Federation; challenges in application and evaluation of EDS systems for aviation security; multi-sensor approach to explosives detection. There are also reports devoted to the following individual explosive detection techniques: X-ray systems in airports; neutron in, gamma out techniques; neutron and gamma backscattering; nuclear quadruple resonance, including remote NQR; sub-surface radars; microwave scanners; laser-induced burst spectroscopy (LIBS); acoustic sensors; nonlinear location (NUD); systems for localization and destruction of explosive objects.