A field strategy to monitor radioactivity associated with investigation derived wastes returned from deep drilling sites (open access)

A field strategy to monitor radioactivity associated with investigation derived wastes returned from deep drilling sites

The U.S. Department of Energy, Nevada Operations Office, Underground Test Area Operable Unit (UGTA) is drilling deep (>1500m) monitoring wells that penetrate both unsaturated (vadose) and saturated zones potentially contaminated by sub-surface nuclear weapons testing at the Nevada Test Site, Nye County, Nevada. Drill site radiological monitoring returns data on drilling effluents to make informed management decisions concerning fluid management. Because of rapid turn-around required for on-site monitoring, a representative sample will be analyzed simultaneously for {alpha}, {beta} and {gamma} emitters by instrumentation deployed on-site. For the purposes of field survey, accurate and precise data is returned, in many cases, with minimal sample treatment. A 30% efficient high purity germanium detector and a discriminating liquid scintillation detector are being evaluated for {gamma} and {alpha}/{beta} monitoring respectively. Implementation of these detector systems complements a successful on-site tritium monitoring program. Residual radioactivity associated with underground nuclear tests include tritium, activation products, fission products and actinides. Pulse shape discrimination (PSD) is used in {alpha}/{beta} liquid scintillation counting and is a function of the time distribution of photon emission. In particular, we hope to measure {sup 241}Am produced from {sup 241}Pu by {beta} decay. Because {sup 241}Pu is depleted in fissile bomb fuels, maximum …
Date: May 26, 1995
Creator: Rego, J. H.; Smith, D. K. & Friensehner, A. V.
Object Type: Article
System: The UNT Digital Library
Three Affliated Tribes Renewable Energy Feasibility Study (open access)

Three Affliated Tribes Renewable Energy Feasibility Study

The Three Affliated Tribes on the Fort Berthold Reservation studied the feasibility of a commercial wind facility on land selected and owned by the Tribes and examined the potential for the development of renewable energy resources on Tribal Lands.
Date: May 26, 2006
Creator: Pete, Belvin; Good, Kent; Gordon, Krista & Ed McCarthy,
Object Type: Report
System: The UNT Digital Library