Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (47)
- Nuclear (44)
- Nuclear Engineering (41)
- Social and Behavioral Sciences (37)
- Defense and Security Studies (36)
-
- Public Affairs, Public Policy and Public Administration (36)
- International Relations (35)
- Political Science (35)
- Business (34)
- Human Resources Management (34)
- Training and Development (34)
- Engineering Education (33)
- Chemistry (32)
- Law (32)
- National Security Law (32)
- Radiochemistry (32)
- Fluid Dynamics (3)
- Materials Science and Engineering (3)
- Mechanical Engineering (3)
- Aerospace Engineering (2)
- Atomic, Molecular and Optical Physics (2)
- Computational Engineering (2)
- Condensed Matter Physics (2)
- Education (2)
- Elementary Particles and Fields and String Theory (2)
- Other Materials Science and Engineering (2)
- Propulsion and Power (2)
- Space Vehicles (2)
- Keyword
-
- Nuclear Security (5)
- Training (4)
- Education (3)
- Nuclear security (3)
- Security (3)
-
- Governance (2)
- Nuclear Security Culture (2)
- Physics (2)
- Safeguards (2)
- Security culture (2)
- AF/African Union (1)
- Actinium-225 (1)
- Alpha Emission (1)
- Aluminum (1)
- Application of copper cluster (1)
- Atomic Spectroscopy (1)
- BDpack (1)
- Beta Decay (1)
- Bi-Maxwellian (1)
- Bimetallic (1)
- Black Sky (1)
- Burnup (1)
- CBRN (1)
- CME (1)
- CMS (1)
- Capacity building (1)
- Cell Division (1)
- Cell growth (1)
- Center of Excellence (1)
- Cerebrospinal fluid shunt (1)
- Publication
- Publication Type
Articles 1 - 30 of 60
Full-Text Articles in Physics
Nuclear Power: Black Sky Liability Or Black Sky Asset?, Sherrell R. Greene
Nuclear Power: Black Sky Liability Or Black Sky Asset?, Sherrell R. Greene
International Journal of Nuclear Security
Ready access to abundant electricity is a key enabler of modern life. During the past decade the vulnerability of Critical Infrastructure sectors in the U.S. to a variety of natural hazards and man-made threats has become increasingly apparent. The electrical infrastructure (the “Grid”) is the foundation for all other critical civil infrastructures upon which our society depends. Therefore, protection of the Grid is an energy security, homeland security, and national security issue of highest importance. Geomagnetic disturbances (GMD) induced by solar coronal mass ejections (CMEs), electromagnetic pulse (EMP) attacks, and cyber attacks are three events having the potential to plunge …
Student Competition Cover
International Journal of Nuclear Security
No abstract provided.
Improving Nuclear Safety, Security, And Nonproliferation In Northeast Asia Through Multinational Approach, Viet Phuong Nguyen
Improving Nuclear Safety, Security, And Nonproliferation In Northeast Asia Through Multinational Approach, Viet Phuong Nguyen
International Journal of Nuclear Security
No abstract provided.
Prospects For Cooperation On Tackling Nuclear And Radiological Terrorism In South Asia: India–Pakistan Nuclear Detection Architecture, Muhammad Umer Khan
Prospects For Cooperation On Tackling Nuclear And Radiological Terrorism In South Asia: India–Pakistan Nuclear Detection Architecture, Muhammad Umer Khan
International Journal of Nuclear Security
No abstract provided.
Implementation Of The 1995 Middle East Resolution: A Vital Lifeline To The Extension And Success Of The Non-Proliferation Treaty, Haidy Y. Ghoname, Howard Lewis Hall
Implementation Of The 1995 Middle East Resolution: A Vital Lifeline To The Extension And Success Of The Non-Proliferation Treaty, Haidy Y. Ghoname, Howard Lewis Hall
International Journal of Nuclear Security
This study highlights the core non-proliferation dilemmas we face and suggests an effective mechanism for reviving the spirit and the hope of the Non-Proliferation Treaty. An indispensable key to the treaty calls for a rethinking of what we believe should be referred to as its four pillars: disarmament, non-proliferation, peaceful uses of nuclear energy, and implementation of the 1995 Middle East Resolution. We seek to contribute to the renaissance of the non-proliferation regime by addressing seven dilemmas that arise from the way various Non-Proliferation Treaty participants pursue the goals of the four pillars undergirding the treaty. This study highlights …
Modern Advancements In Post-Detonation Nuclear Forensic Analysis, S. Adam Stratz, Jonathan A. Gill, John D. Auxier Ii, Howard L. Hall
Modern Advancements In Post-Detonation Nuclear Forensic Analysis, S. Adam Stratz, Jonathan A. Gill, John D. Auxier Ii, Howard L. Hall
International Journal of Nuclear Security
Deterring nuclear terrorism is a critical national asset to support the preclusion of non-state actors from initiating a nuclear attack on the United States. Successful attribution of a detonated nuclear weapon allows for timely responsive measures that prove essential in the period following a nuclear event. In conjunction with intelligence and law enforcement evidence, the technical nuclear forensics (TNF) post-detonation community supports this mission through the development and advancement of expertise to characterize weapon debris through a rapid, accurate, and detailed approach. Though the TNF field is young, numerous strides have been made in recent years toward a more robust …
Evaluation Of Covert Plutonium Production From Unconventional Uranium Sources, Ondrej Chvala, Steven Skutnik, Tyrone Christopher Harris, Emily Anne Frame
Evaluation Of Covert Plutonium Production From Unconventional Uranium Sources, Ondrej Chvala, Steven Skutnik, Tyrone Christopher Harris, Emily Anne Frame
International Journal of Nuclear Security
The potential for a relatively non-advanced nation to covertly acquire a significant quantity of weapons-grade plutonium using a gas-cooled, natural uranium-fueled reactor based on relatively primitive early published designed is evaluated in this article. The economic and technical issues that would influence the design decisions of a covert 239Pu production program are considered.
Several unconventional uranium acquisition approaches were explored. Methods for extracting uranium from enrichment tails, seawater, and coal ash sources were considered. The evaluation indicated that uranium extraction from coal ash or insitu leaching from underground deposits could be performed in economical manner that might be difficult …
Janus Realized: The Use Of Social Media As A Means Of Transparency Nuclear Communication To The Public, Frances Bachstein
Janus Realized: The Use Of Social Media As A Means Of Transparency Nuclear Communication To The Public, Frances Bachstein
International Journal of Nuclear Security
No abstract provided.
Addressing The Tunnel Threat At Nuclear Facilities: A Case Study, Md. Mobasher Ahmed
Addressing The Tunnel Threat At Nuclear Facilities: A Case Study, Md. Mobasher Ahmed
International Journal of Nuclear Security
No abstract provided.
Letter From The Editor
International Journal of Nuclear Security
No abstract provided.
A New Pathway To Enhance The Nuclear Security Regime, Francesca Giovannini
A New Pathway To Enhance The Nuclear Security Regime, Francesca Giovannini
International Journal of Nuclear Security
The paper investigates the approach used by a new set of regional institutions, the Disaster Preparedness and Risk Management Organizations (DPRMOs), in strengthening regional governance and cooperation. It also inquires in what ways these new institutions might indirectly contribute to the establishment of a more cohesive global nuclear security framework. More specifically, through the examination of the case of Southeast Asia, the paper argues that these institutions, albeit without a specific and direct mandate to operate in the nuclear security domain, are fundamentally strengthening states’ capacity to assess risks and threats and to map vulnerabilities in timely fashion. They are …
Legal And Regulatory Framework Of Nuclear Security In Indonesia, Dahlia Cakrawati Sinaga
Legal And Regulatory Framework Of Nuclear Security In Indonesia, Dahlia Cakrawati Sinaga
International Journal of Nuclear Security
Nuclear security is one of the most important topics for regulatory purposes in Indonesia. Nuclear security measures exist to prevent, detect, and respond to unauthorized removal of radioactive material and the sabotage of nuclear and radiation facilities. Indonesia participates in bilateral and multilateral cooperation and international events such as the Nuclear Security Summit. Indonesia has also ratified several international instruments related to nuclear security. Based on commitment to international events and ratification, Indonesia has developed nuclear security infrastructures by strengthening legislation and regulation, enhancing building capacity, and strengthening equipment and facilities. Badan Pengawas Tenaga Nuklir (BAPETEN) is Indonesia’s nuclear energy …
Modified Fault Tree Method For Vulnerability Analysis Of Nuclear Medicine Facility Security System Case Study: Radiotherapy Facility, Sardjito General Hospital, Haryono Budi Santosa
Modified Fault Tree Method For Vulnerability Analysis Of Nuclear Medicine Facility Security System Case Study: Radiotherapy Facility, Sardjito General Hospital, Haryono Budi Santosa
International Journal of Nuclear Security
Assessing the vulnerability of physical protection systems (PPS) in nuclear medicine facilities is needed to prevent a security incident that could lead to the malicious use of nuclear material. Theft and sabotage of nuclear materials is becoming globally recognized. The current methods of assessing vulnerability tend to be oriented toward complex nuclear security; consequently, it is excessive to use such methods in simple facilities (i.e., radiotherapy facilities in hospitals).
The fault tree analysis is a method to assess vulnerability for a simple nuclear facility. The method’s primary events (i.e., basic events and undeveloped events) are able to accommodate fault causes …
Nuclear Security Culture And Batan’S Assessment: Batan’S Experience, Anhar R. Antariksawan
Nuclear Security Culture And Batan’S Assessment: Batan’S Experience, Anhar R. Antariksawan
International Journal of Nuclear Security
Organizations should increase safety to minimize the harmful effects of nuclear materials. Additionally, organizations should take measures to protect security culture within the organization itself. This paper covers the National Nuclear Energy Agency of Indonesia’s (BATAN’s) promotion of nuclear security culture and self- assessment projects, which is based on the International Atomic Energy Agency’s (IAEA) methodology.
Opportunities And Challenges In Developing Nuclear Security In Africa, James Larkin Mfr
Opportunities And Challenges In Developing Nuclear Security In Africa, James Larkin Mfr
International Journal of Nuclear Security
Those involved in nuclear security recognize that regions of significant instability in Africa have an impact on the safety and security of the continent's nuclear material and un-enriched uranium; however, some countries outside of continental Africa have taken counterproductive approaches to this issue. Despite challenges, the nuclear security community continues to develop and apply appropriate levels of nuclear security where needed. The community also takes every opportunity to make significant contributions to the global discourse on nuclear security culture.
From The Editor’S Desk
International Journal of Nuclear Security
No abstract provided.
Nuclear Security Risk Analysis: An Insider-Outsider Collusion Scenario, Mohammad A. Hawila, Sunil S. Chirayath
Nuclear Security Risk Analysis: An Insider-Outsider Collusion Scenario, Mohammad A. Hawila, Sunil S. Chirayath
International Journal of Nuclear Security
This study analyses the vulnerability of the physical protection system (PPS) deployed at a hypothetical facility. The PPS is designed to prevent and eliminate threats to nuclear materials and facilities. The analysis considers possible outsider and insider threats. A modified adversary sequence diagram (ASD) evaluates threat pathways to test an insider-outsider collusion case. The ASD also measures the probability of adversary interruption by demonstrating the methodology for a typical nuclear facility.
Beta-Delayed Neutron Data And Models For Scale, Kemper Dyar Talley
Beta-Delayed Neutron Data And Models For Scale, Kemper Dyar Talley
Doctoral Dissertations
Recent advancements in experimental and theoretical nuclear physics have yielded new data and models that more accurately describe the decay of fission products compared to historical data currently used for many applications. This work examines the effect of the adopting the Effective Density Model theory for beta-delayed neutron emission probability on calculations of delayed-neutron production and fission product nuclide concentrations after fission bursts as well as the total delayed neutron fraction in comparison with the Keepin 6-group model. We use ORIGEN within the SCALE code package for these calculations. We show quantitative changes to the isotopic concentrations for fallout nuclides …
Large Scale Brownian Dynamics Simulation Of Dilute And Semidilute Polymeric Solutions, Amir Saadat
Large Scale Brownian Dynamics Simulation Of Dilute And Semidilute Polymeric Solutions, Amir Saadat
Doctoral Dissertations
Excluded Volume (EV) and Hydrodynamic Interactions (HI) play a central role in static and dynamic properties of macromolecules in solution under equilibrium and nonequilibrium settings. The computational cost of incorporating HI in mesoscale Brownian dynamics (BD) simulations, particularly in the semidilute regime has motivated significant research aimed at development of high-fidelity and efficient techniques.
In this study, I have developed several algorithms for the mesoscale bead-spring representation of a macromolecular solution in dilute and semidilute regimes. The Krylov subspace method enables fast calculation of single chain dynamics with simulation time scaling of O(Nb2) [order N …
Development, Analysis, And Optimization Of A Swirl-Promoting Mean Flow Solution For Solid Rocket Motors, Andrew Steven Fist
Development, Analysis, And Optimization Of A Swirl-Promoting Mean Flow Solution For Solid Rocket Motors, Andrew Steven Fist
Masters Theses
This work demonstrates and analyses a new flow candidate for describing the internal gaseous motion in simulated rocket motors. The fundamental features of this solution include the conservation of key system properties also incorporated in the classic Taylor-Culick (TC) system (i.e. inviscid, axisymmetric, steady and rotational properties), while allowing for the development of a swirling velocity component. The work compares the new solution to the development and formulation of the classic TC system, ultimately identifying that both the new and classic solutions are special cases of the Bragg-Hawthorne equation. Following this development, the text then explores the development of energy-optimized …
Optical Spectroscopy And The Contruction Of An Optimal Wannier Basis With Application To The Development Of Ab Initio Models, Robert Gerard Van Wesep
Optical Spectroscopy And The Contruction Of An Optimal Wannier Basis With Application To The Development Of Ab Initio Models, Robert Gerard Van Wesep
Doctoral Dissertations
Understanding the role of local orbital degrees of freedom in the behavior of solid state systems has long been understood as a key to unraveling the mysteries presented by complex transition metal compounds. A general approach to the many-body problem is density functional theory (DFT) and its time-dependent extension (TDDFT), which provide a realistic representation of the material-dependent symmetry and chemistry of a compound. Calculation of quantities in (TD)DFT are most often performed using the basis of Bloch states, which is not natural for investigating local degrees of freedom. The Wannier basis provides localized orbitals that retain all of the …
Experimental Study On The Production Of Negative Ion Copper Clusters And Applications, Ran Chu
Experimental Study On The Production Of Negative Ion Copper Clusters And Applications, Ran Chu
Masters Theses
At the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratories (ORNL), we investigated the formation, production and potential application of negative-ion copper clusters using mass distributions of negative-ion copper clusters obtained by bombarding various copper samples with Cs ions. The Cu samples – in very large mass-selected clusters Cu (e.g. n=54) – included natural Cu, isotopically enriched copper-63 and copper-65, and electroformed ultra-clean Cu. Mass spectra of negative copper cluster produced by Cs sputter source size up to 50 are shown for the first time.
Three main features were observed for all four copper samples: the intensity …
Correction To Luminosity Measurement For The Pixel Luminosity Telescope At Cms, Krishna Thapa
Correction To Luminosity Measurement For The Pixel Luminosity Telescope At Cms, Krishna Thapa
Masters Theses
The search for and detailed study of new particles and forces with the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) of CERN is fundamentally dependent on the precise measurement of the rate at which proton-proton collisions produce any particles, the so-called luminosity. Therefore, a new detector, the Pixel Luminosity Telescope (PLT), dedicated to measure the luminosity at high precision was added to the CMS experiment in 2015. It measures the inclusive charged particle production from each collision of proton bunches in the LHC. Additional charged particles which are observed by the instrument but produced from sources …
Khalifa University Reachback Program Supporting Prevention Of Illicit Nuclear And Radiological Material Smuggling In The United Arab Emirates, Braden Goddard, Alexander A. Solodov, Patrick J. Simmons
Khalifa University Reachback Program Supporting Prevention Of Illicit Nuclear And Radiological Material Smuggling In The United Arab Emirates, Braden Goddard, Alexander A. Solodov, Patrick J. Simmons
International Journal of Nuclear Security
Trafficking of Illicit nuclear or radiological materials is a global threat which can involve and adversely affect any country. Ultimately, it is the responsibility of each state to prevent and combat illicit nuclear trafficking by screening all cargo and travelers entering, exiting, and transiting through its borders. As a part of the national radiation detection infrastructure of the United Arab Emirates (UAE), a reachback program was established at Khalifa University (KU) to provide capabilities for adjudication of radiation alarms at Khalifa Port and other radiation portal monitor (RPM) locations. In addition to the main mission, KU Reachback aims to educate …
Letter From The Editor - Hirst, Russel K. Hirst
Letter From The Editor - Hirst, Russel K. Hirst
International Journal of Nuclear Security
No abstract provided.
Letter From The Editor - Frahi-Amroun, Akila Frahi-Amroun
Letter From The Editor - Frahi-Amroun, Akila Frahi-Amroun
International Journal of Nuclear Security
No abstract provided.