Download or read book Characterization of High explosive Initiation and Safety at Los Alamos written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Site Characterization and Monitoring of Technical Area 49 at the Los Alamos National Laboratory written by D. G. Levitt and published by . This book was released on 2003 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1959-1961, subcritical hydronuclear safety experiments were conducted at Technical Area (TA) 49 at the Los Alamos National Laboratory (LANL). These underground experiments were designed and conducted to investigate safety issues. Seventy hydronuclear safety, tracer, and containment test experiments were conducted in 1-m or 2-m diameter shafts at depths ranging between 9 m and 33 m. The subsurface radiological and metals inventory consists of about 40 kg of plutonium, 93 kg of uranium-235, 170 kg of uranium-238, 11 kg of beryllium, and possibly more than 90,000 kg of lead. Explosives used in the experiments consisted largely of TNT, RDX, HMX, and barium nitrate. It is highly likely that the explosives, except for the barium component, were completely consumed by the detonations. Hydronuclear safety test shafts were drilled, test materials were placed at the bottom of the shafts, shafts were backfilled with sand or local crushed tuff, tests were detonated, subsidence in the shafts were backfilled, and cement caps were poured over the test shafts. The diameter of the affected detonation zones is believed to be less than 6 m. Most test shafts were drilled on an 8-m grid spacing in four main areas within TA-49.

Download or read book Initiation and Detonation of Heterogeneous High Explosives written by Pier K. Tang and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Capabilities for High Explosive Pulsed Power Research at Los Alamos National Laboratory written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on topics requiring high magnetic fields and high currents have been pursued using high explosive pulsed power (HEPP) techniques since the 1950s at Los Alamos National Laboratory. We have developed many sophisticated HEPr systems through the years, and most of them depend on technology available from the nuclear weapons program. Through the 1980s and 1990s, our budgets would sustain parallel efforts in zpinch research using both HEPr and capacitor banks. In recent years, many changes have occurred that are driven by concerns such as safety, security, and environment, as well as reduced budgets and downsizing of the National Nuclear Security Administration (NNSA) complex due to the end of the cold war era. In this paper, we review the teclmiques developed to date, and adaptations that are driven by changes in budgets and our changing complex. One new Ranchero-based solid liner z-pinch experimental design is also presented. Explosives that are cast to shape instead of being machined, and initiation systems that depend on arrays of slapper detonators are important new tools. Some materials that are seen as hazardous to the environment are avoided in designs. The process continues to allow a wide range of research however, and there are few, if any, experiments that we have done in the past that could not be perform today. The HErr firing facility at Los Alamos continues to have a 2000 lb. high explosive limit, and our 2.4 MJ capacitor bank remains a mainstay of the effort. Modem diagnostic and data analysis capabilities allow fewer personnel to achieve better results, and in the broad sense we continue to have a robust capability.

Download or read book A Working Man s Analysis of Incidents and Accidents with Explosives at the Los Alamos National Laboratory 1946 1997 written by and published by . This book was released on 1998 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the inception of the Laboratory hectic and intense work was the norm during the development of the atomic bombs. After the war the development of other weapons for the Cold War again contributed to an intense work environment. Formal Standard Operating Procedures (SOPs) were not required at that time. However, the occurrence of six fatalities in 1959 during the development of a new high-energy plastic bonded explosive (94% HMX) forced the introduction SOPs. After an accident at the Department of Energy (DOE) plant at Amarillo, TX in 1977, the DOE promulgated the Department wide DOE Explosives Safety Manual. Table 1 outlines the history of the introduction of SOPs and the DOE Explosives Safety Manual. Many of the rules and guidelines presented in these documents were developed and introduced as the result of an incident or accident. However, many of the current staff are not familiar with the background of the development. To preserve as much of this knowledge as possible, they are collecting documentation on incidents and accidents involving energetic materials at Los Alamos. Formal investigations of serious accidents elucidate the multiple causes that contributed to accidents. These reports are generally buried in a file and, and are not read by more recent workers. Reports involving fatalities at Los Alamos before 1974 were withheld from the general employee. Also, these documents contain much detail and analysis that is not of interest to the field worker. The authors have collected the documents describing 116 incidents and have analyzed the contributing factors as viewed from the standpoint of the individual operator. All the incidents occurred at the Los Alamos National Laboratory and involved energetic materials in some manner, though not all occurred within the explosive handling groups. Most accidents are caused by multiple contributing factors. They have attempted to select the one or two factors that they consider as the most important relative to the individual doing the work. The value of SOPs was an obvious conclusion apriori. The introduction and use of SOPs reduced the probability of serious accidents. The second conclusion was less obvious in that it appears that the SOP did not adequately provide all the controls necessary for 16% of the events. Violations of SOPs, always considered as a potential contributor, was assigned as the major contributor in only 10 incidents.

Download or read book ANALYSIS OF SHOCK WAVE AND INITIATION DATA FOR SOLID EXPLOSIVES written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Explosives Safety Day written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Los Alamos National Laboratory Continued Operation Site Wide written by and published by . This book was released on 1999 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Los Alamos Science written by and published by . This book was released on 1992 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Continued Operation of Los Alamos National Laboratory written by and published by . This book was released on 2008 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Los Alamos Experimental Capabilities written by and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document outlines the Ancho Canyon testing facility comprehensive material characterization capabilities. These include the high explosive (HE) firing sites, a full complement of gun facilities, and variety of pulse power capacitor bank systems of various energies. The explosive fabrication capability at Los Alamos allows the design and testing of unique HE experimental assemblies. Depending on the hydrodynamic requirements, these explosive systems can vary widely in cost. Years of experience have enabled the development of a comprehensive set of diagnostics to monitor these experiments.

Download or read book Approches Microscopique Et Macroscopique Des D tonations written by S. Odiot and published by . This book was released on 1995 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Explosives Skid Impact Initiation Study written by Armando S. Vigil and published by . This book was released on 1990 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Numerical Modeling of Insensitive High explosives Initiation written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The initiation of propagating, diverging detonation is usually accomplished by small conventional initiators. As the explosive to be initiated becomes more shock insensitive, the initators must have larger diameters to be effective. Very shock-insensitive explosives have required initiators larger than 2.5 cm. We have numerically examined the process of initiation of propagating detonation as a function of the shock sensitivity of the explosive using the two-dimensional Lagrangian reactive hydrodynamic code 2DL and the Forest Fire rate to describe the shock initiation process of heterogeneous explosives. The initiation of propagating detonation in shock-insenstive explosives containing triamino trinitrobenzene results in large regions of partially decomposed explosive even when initiated by large initiators. The process has been observed experimentally and reproduced numerically.

Download or read book High Explosives Propellants Pyrotechnics written by Ernst-Christian Koch and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-01-18 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dictionary contains 739 entries with about 1400 references to the primary literature. Details on the composition, performance, sensitivity and other pertinent properties of Energetic Materials such as High Explosives, Propellants, Pyrotechnics, as well as important ingredients such as Oxidizers, Fuels, Binders, and Modifiers are given and presented partly in over 180 tables with more than 240 structural formulas . In detail the dictionary gives elaborate descriptions of 460 Chemical Substances 170 Pyrotechnic Compositions 360 High Explosive and Propellant Formulations In addition, the basic physical and thermochemical properties of 435 pure substances (elements & compounds) typically occuring as ingredients or reaction products are given too. 150 Figures, schemes and diagrams explain Applications, Test methods, Scientific facilities, and finally Individuals closely tied with the development and investigation of Energetic Materials. The book is intended for readers with a technical or scientific background, active in governmental agencies, research institutes, trade and industry, concerned with the procurement, development, manufacture, investigation and use of Energetic Materials, such as High Explosives, Propellants, Pyrotechnics, Fireworks and Ammunition. The book serves both as a daily reference for the experienced as well as an introduction for the newcomer to the field.