The security of the U.S. commercial aviation system has been a growing concern since the 1970's when the hijacking of aircraft became a serious problem. Over that period, federal aviation officials have been searching for more effective ways for non-invasive screening of passengers, luggage, and cargo to detect concealed explosives and weapons. To assist in this effort, the Transportation Security Administration (TSA) asked the NRC for a study of emerging screening technologies. This report-the third of four-focuses on currently maturing millimeter-wavelength/terahertz imaging and spectroscopy technologies that offer promise in meeting aviation security requirements. The report provides a description of the basic operation of these imaging systems, an assessment of their component technologies, an analysis of various system concepts, and an implementation strategy for deployment of millimeter-wavelength/terahertz technology screening systems.

THE LATEST EM TECHNIQUES FOR DETECTING CONCEALED TARGETS, WHETHER EXPLOSIVES, WEAPONS, OR PEOPLE Extensively illustrated from basic principles to system design, the fundamental concepts of RF, microwave, millimeter wave, and terahertz detection systems and techniques to find concealed targets are explained in this publication. These concealed targets may be explosive devices or weapons, which can be buried in the ground, concealed in building structures, hidden under clothing, or inside luggage. Concealed targets may also be people who are stowaways or victims of an avalanche or earthquake. Although much information is available in conference proceedings and professional society publications, this book brings all the relevant information in a single, expertly written and organized volume. Readers gain an understanding of the physics underlying electromagnetic (EM) detection methods, as well as the factors that affect the performance of EM detection equipment, helping them choose the right type of equipment and techniques to meet the demands of particular tasks. Among the topics covered are: Ultra-wideband radar and ground-penetrating radar Millimeter, sub-millimeter, and terahertz systems Radar systems including Doppler, harmonic, impulse, FMCW, and holographic Radiometric systems Nuclear quadrupole resonance systems Author David Daniels has many years of experience designing and deploying EM systems to detect concealed targets. As a result, this publication is essential for scientists and engineers who are developing or using EM equipment and techniques for a diverse range of purposes, including homeland security, crime prevention, or the detection of persons.

This book covers the latest advances in the techniques employed to manage the THz radiation and its potential uses. It has been subdivided in three sections: THz Detectors, THz Sources, Systems and Applications. These three sections will allow the reader to be introduced in a logical way to the physics problems of sensing and generation of the terahertz radiation, the implementation of these devices into systems including other components and finally the exploitation of the equipment for real applications in some different field. All of the sections and chapters can be individually addressed in order to deepen the understanding of a single topic without the need to read the whole book. The THz Detectors section will address the latest developments in detection devices based on three different physical principles: photodetection, thermal power detection, rectification. The THz Sources section will describe three completely different generation methods, operating in three separate scales: quantum cascade lasers, free electron lasers and non-linear optical generation. The Systems and Applications section will take care of introducing many of the aspects needed to move from a device to an equipment perspective: control of terahertz radiation, its use in imaging or in spectroscopy, potential uses in security, and will address also safety issues. The text book is at a level appropriate to graduate level courses up to researchers in the field who require a reference book covering all aspects of terahertz technology.

Microsystems technologies have found their way into an impressive variety of applications, from mobile phones, computers, and displays to smart grids, electric cars, and space shuttles. This multidisciplinary field of research extends the current capabilities of standard integrated circuits in terms of materials and designs and complements them by creating innovative components and smaller systems that require lower power consumption and display better performance. Novel Advances in Microsystems Technologies and their Applications delves into the state of the art and the applications of microsystems and microelectronics-related technologies. Featuring contributions by academic and industrial researchers from around the world, this book: Examines organic and flexible electronics, from polymer solar cell to flexible interconnects for the co-integration of micro-electromechanical systems (MEMS) with complementary metal oxide semiconductors (CMOS) Discusses imaging and display technologies, including MEMS technology in reflective displays, the fabrication of thin-film transistors on glass substrates, and new techniques to display and quickly transmit high-quality images Explores sensor technologies for sensing electrical currents and temperature, monitoring structural health and critical industrial processes, and more Covers biomedical microsystems, including biosensors, point-of-care devices, neural stimulation and recording, and ultra-low-power biomedical systems Written for researchers, engineers, and graduate students in electrical and biomedical engineering, this book reviews groundbreaking technology, trends, and applications in microelectronics. Its coverage of the latest research serves as a source of inspiration for anyone interested in further developing microsystems technologies and creating new applications.

Terahertz (THz) radiation, which is electromagnetic radiation in a frequency int- val from 0.3 to 10 THz (1 mm–30 ?m wavelength), is the next frontier in science and technology. This band occupies a large portion of the electromagnetic sp- trum between the infrared and microwave bands. Basic research, new initiatives, and developments in advanced sensing and imaging technology with regard to the THz band remain unexplored compared to the relatively well-developed science and technology in the microwave and optical frequencies. Historically, THz technologies were used mainly within the astronomy c- munity for studying the background of cosmic far-infrared radiation, and by the laser-fusion community for the diagnostics of plasmas. Since the ?rst demonstration of THz wave time-domain spectroscopy in the late 1980s, there has been a series of signi?cant advances (particularly in recent years) as more intense THz sources and higher sensitivity detectors provide new opportunities for understanding the basic science in the THz frequency range.

This book presents a collection of reviews prepared for the conference “Atmosphere, Ionosphere, Safety,” held in Kaliningrad, Russia, in July 2012. It provides the reader insight into the current developments in the following fields: physics of elementary processes; ionosphere dynamics; ball lightning and aerosol structures; as well as remote detection of the radioactive and highly toxic substances. The diversity of scope presented offers readers an up-to-date overview of trends, questions and their solutions.

The security of the U.S. commercial aviation system has been a growing concern since the 1970's when the hijacking of aircraft became a serious problem. Over that period, federal aviation officials have been searching for more effective ways for non-invasive screening of passengers, luggage, and cargo to detect concealed explosives and weapons. To assist in this effort, the Transportation Security Administration (TSA) asked the NRC for a study of emerging screening technologies. This book - the fourth of four - focuses on data fusion as a means to significantly improve the ability of the existing suite of airport detection systems and access control systems to detect and prevent attacks. The book presents a discussion of the data fusion, an analysis of current data fusion efforts, and an assessment of data fusion opportunities for various airport security activities.

The Centers for Medicare and Medicaid Services (CMS) is the agency in the Department of Health and Human Services responsible for providing health coverage for seniors and people with disabilities, for limited-income individuals and families, and for children-totaling almost 100 million beneficiaries. The agency's core mission was established more than four decades ago with a mandate to focus on the prompt payment of claims, which now total more than 1.2 billion annually. With CMS's mission expanding from its original focus on prompt claims payment come new requirements for the agency's information technology (IT) systems. Strategies and Priorities for Information Technology at the Centers for Medicare and Medicaid Services reviews CMS plans for its IT capabilities in light of these challenges and to make recommendations to CMS on how its business processes, practices, and information systems can best be developed to meet today's and tomorrow's demands. The report's recommendations and conclusions offered cluster around the following themes: (1) the need for a comprehensive strategic technology plan; (2) the application of an appropriate metamethodology to guide an iterative, incremental, and phased transition of business and information systems; (3) the criticality of IT to high-level strategic planning and its implications for CMS's internal organization and culture; and (4) the increasing importance of data and analytical efforts to stakeholders inside and outside CMS. Given the complexity of CMS's IT systems, there will be no simple solution. Although external contractors and advisory organizations will play important roles, CMS needs to assert well-informed technical and strategic leadership. The report argues that the only way for CMS to succeed in these efforts is for the agency, with its stakeholders and Congress, to recognize resolutely that action must be taken, to begin the needed cultural and organizational transformations, and to develop the appropriate internal expertise to lead the initiative with a comprehensive, incremental, iterative, and integrated approach that effectively and strategically integrates business requirements and IT capabilities.

This study is principally concerned with the ethical dimensions of identity management technology - electronic surveillance, the mining of personal data, and profiling - in the context of transnational crime and global terrorism. The ethical challenge at the heart of this study is to establish an acceptable and sustainable equilibrium between two central moral values in contemporary liberal democracies, namely, security and privacy. Both values are essential to individual liberty, but they come into conflict in times when civil order is threatened, as has been the case from late in the twentieth century, with the advent of global terrorism and trans-national crime. We seek to articulate legally sustainable, politically possible, and technologically feasible, global ethical standards for identity management technology and policies in liberal democracies in the contemporary global security context. Although the standards in question are to be understood as global ethical standards potentially to be adopted not only by the United States, but also by the European Union, India, Australasia, and other contemporary liberal democratic states, we take as our primary focus the tensions that have arisen between the United States and the European Union.

While books on the medical applications of x-ray imaging exist, there is not one currently available that focuses on industrial applications. Full of color images that show clear spectrometry and rich with applications, X-Ray Imaging fills the need for a comprehensive work on modern industrial x-ray imaging. It reviews the fundamental science of x-ray imaging and addresses equipment and system configuration. Useful to a broad range of radiation imaging practitioners, the book looks at the rapid development and deployment of digital x-ray imaging system.