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Book LANL s Mobile Nondestructive Assay and Examination Systems for Radioactive Wastes

Download or read book LANL s Mobile Nondestructive Assay and Examination Systems for Radioactive Wastes written by and published by . This book was released on 1996 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to accurately and rapidly measure nuclear material within drums and examine their contents without having to unpack the drums saves time, reduces characterization costs and minimizes radiation exposure. Over the past two years, Los Alamos National Laboratory (LANL) has developed and fielded a suite of mobile nondestructive assay and examination systems for use primarily on its own transuranic (TRU) waste but that also have application to low level, mixed and hazardous wastes. It has become obvious that systems like these are generally useful and have applications at other Department of Energy (DOE) production and environmental technology sites. Mobile capabilities present a potential cost savings where waste drums have to be transported to a fixed NDA facility. In other cases they fill a void where there is no fixed facility available because construction costs are prohibitive (as in the case of small quantity sites) or the available facilities may not meet current or evolving safety standards. Rather than bringing waste to a facility to be characterized, one can bring the characterization capability to the waste. The three systems described are: (1) mobile radiography system; (2) mobile segmented/tomographic gamma scanner; and (3) mobile passive/active neutron assay system.

Book Preliminary Report of the Comparison of Multiple Non destructive Assay Techniques on LANL Plutonium Facility Waste Drums

Download or read book Preliminary Report of the Comparison of Multiple Non destructive Assay Techniques on LANL Plutonium Facility Waste Drums written by and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to disposal, nuclear waste must be accurately characterized to identify and quantify the radioactive content. The DOE Complex faces the daunting task of measuring nuclear material with both a wide range of masses and matrices. Similarly daunting can be the selection of a non-destructive assay (NDA) technique(s) to efficiently perform the quantitative assay over the entire waste population. In fulfilling its role of a DOE Defense Programs nuclear User Facility/Technology Development Center, the Los Alamos National Laboratory Plutonium Facility recently tested three commercially built and owned, mobile nondestructive assay (NDA) systems with special nuclear materials (SNM). Two independent commercial companies financed the testing of their three mobile NDA systems at the site. Contained within a single trailer is Canberra Industries segmented gamma scanner/waste assay system (SGS/WAS) and neutron waste drum assay system (WDAS). The third system is a BNFL Instruments Inc. (formerly known as Pajarito Scientific Corporation) differential die-away imaging passive/active neutron (IPAN) counter. In an effort to increase the value of this comparison, additional NDA techniques at LANL were also used to measure these same drums. These are comprised of three tomographic gamma scanners (one mobile unit and two stationary) and one developmental differential die-away system. Although not certified standards, the authors hope that such a comparison will provide valuable data for those considering these different NDA techniques to measure their waste as well as the developers of the techniques.

Book Radioactive Waste Management

Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Mobile Nondestructive Assay and Examination Instruments

Download or read book Mobile Nondestructive Assay and Examination Instruments written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A compact system that evaluates radioactive materials can furnish a big savings to taxpayers by ensuring that only properly identified nuclear waste is sent to a Department of Energy (DOE) radioactive waste storage area. The Los Alamos National Laboratory's Advanced Nuclear Technology Group has developed and field tested two esily transportable, self-contained modules: one x-rays the contents of special 208-l shipment containers, the other assays the contents. The assay and evaluation system is a simple, portable solution to a complex problem that ensures that only properly packaged transuranic (TRU) wste is shipped to the Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. Caustic chemicals, liquids, and other objects or materials tht could cause a container leak during shipment are the objects of an x-ray and video camera used in the system. The camera inspects the contents of 208-l drums that are brought into the system on a conveyor and rotated, one at a time, in front of the x-ray source. Free liquids can be detected by shaking the drum; the sloshing liquid is visible on the video screen. After the drum is x-rayed, it is conveyed to the assay module where precision instruments measure the amounts of TRU isotopes present in the waste. If the drum contains fissile TRU isotopes above the safety limit, it is rejected and sent to an appropriate facility for repackaging; if the drum contains less than the 100 nCi/g lower-level limit for TRU, it is rejected and sent to a low-level nuclear waste burial site. Drums whose contents fall between these limits are accepted and certified for shipment to the WIPP. Made to fit on flatbed trailers, the entire system can be transported to a DOE facility and be ready for operations within 5 hours after arrival.

Book Mobile Nondestructive Examination and Assay Instruments

Download or read book Mobile Nondestructive Examination and Assay Instruments written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A compact system that evaluates radioactive materials can furnish a big savings to taxpayers by ensuring that only properly identified nuclear waste is sent to a Department of Energy (DOE) radioactive waste storage area. The Los Alamos National Laboratory's Advanced Nuclear Technology Group has developed and field tested two easily transportable, self-contained modules: one performs real-time radiography of special 208-/l/ shipment containers, the other assays the contents. The examination and assay system is a simple, portable solution to a complex problem that ensures only properly packaged transuranic (TRU) waste is shipped to the Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. 3 refs., 6 figs.

Book The USDOE Mobile Non destructive Assay and Examination System

Download or read book The USDOE Mobile Non destructive Assay and Examination System written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A mobile system for non-destructive assay (NDA) and non-destructive examination (NDE), developed at the Los Alamos National Laboratory, provides accurate and sensitive determination of quantities of transuranic (TRU) isotopes contained in 208-l drums of wastes and furnishes images of the contents for further sorting purposes. The NDA unit consists of four major subsystems: an assay chamber, counting and digital electronics, data acquisition, and a neutron generator. It performs both active and passive neutron measurements for the determination of the amount of fissile isotopes at a sensitivity level of 1 mg plutonium, and the determination of the spontaneous fission and (.cap alpha., n) isotopes at a comparable level. A complete assay consists of sequential active and passive measurements. The data analysis includes various matrix corrections and a determination that the drum does or does not exceed the 100-nCi/g threshold for TRU wastes. The NDE unit is used to examine for liquids and other materials that are prohibited for long term storage of the drums. An x-ray camera images the contents of 208-/ell/ drums that are brought into the system on a conveyor and rotated in front of an x-ray source. Free liquids can be detected by shaking the drum and observing liquid motion on the video screen. Made to fit on flatbed trailers, the entire system can be transported to a Department of Energy (DOE) facility and be ready for operations within 5 hours after arrival. Field tests have been performed on three separate occasions, accomplishing more than 1800 waste drum examinations. 8 refs., 9 figs., 1 tab.

Book Passive Nondestructive Assay of Nuclear Materials

Download or read book Passive Nondestructive Assay of Nuclear Materials written by Doug Reilly and published by . This book was released on 1991 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Office of Environmental Management Technical Reports A Bibliography

Download or read book The Office of Environmental Management Technical Reports A Bibliography written by and published by DIANE Publishing. This book was released on 2001 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Office of Environmental Management's (EM) technical reports bibliography is an annual publication that contains information on scientific and technical reports sponsored by the Office of Environmental Management added to the Energy Science and Technology Database from July 1, 1994 through June 30, 1995. This information is divided into the following categories: Focus Areas, Cross-Cutting Programs, and Support Programs. In addition, a category for general information is included. EM's Office of Science and Technology sponsors this bibliography.

Book Continued Operation of Los Alamos National Laboratory

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 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Department of Defense Authorization for Appropriations for Fiscal Year 1997 and the Future Years Defense Program Strategic forces

Download or read book Department of Defense Authorization for Appropriations for Fiscal Year 1997 and the Future Years Defense Program Strategic forces written by United States. Congress. Senate. Committee on Armed Services and published by . This book was released on 1997 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1996 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: