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in creator/contributor: "Camp, D"

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Deterioration of plutonium isotopic analysis with neurtron damage to HPGe detectors

The effects of neutron (n) damage on HPGe detectors used to measure Pu isotopic ratios were investigated. Both a p-type planar and an n-type coaxial detector were progressively neutron damaged up to a total integrated flux of >5{times}10{sup 9} n/cm{sup 2} from a {sup 252}Cf source. Severe deterioration of selected peak shapes and degradation in the Pu isotopic analysis capability were observed and quantified by using the GRPANL and MGA codes developed at LLNL. After an integrated exposure of 1… more

Date: September 1, 1991

Creator: Koenig, Z. M.; Gunnink, R.; Ruhter, W. D. & Camp, D. C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Progress on a New Integrated 3-D UCG Simulator and its Initial Application

A comprehensive simulator is being developed for underground coal gasification (UCG), with the capability to support site selection, design, hazard analyses, operations, and monitoring (Nitao et al., 2010). UCG is computationally challenging because it involves tightly-coupled multi-physical/chemical processes, with vastly different timescales. This new capability will predict cavity growth, product gas composition and rate, and the interaction with the host environment, accounting for site cha… more

Date: September 22, 2011

Creator: Nitao, J. J.; Camp, D. W.; Buscheck, T. A.; White, J. A.; Burton, G. C.; Wagoner, J. L. et al.