This report presents the results of a study aimed at assessing the potentially beneficial uses of krypton-85 derived from waste of gases of nuclear fuel reprocessing facilities.

None

Transient compressible flow in porous media was investigated analytically. The major portion of the investigation was directed toward improving and understanding of dispersion in these flows and developing rapid accurate numerical techniques for predicting the extent of dispersion. The results are of interest in the containment of underground nuclear experiments. The transient one-dimensional transport of a trace component in a gas flow is analyzed. A conservation equation accounting for the effects of convective transport, dispersive transport, and decay, is developed. This relation, as well as a relation governing the fluid flow, is used to predict trace component concentration as a function of position and time. A detailed analysis of transport associated with the isothermal flow of an ideal gas is done. Because the governing equations are nonlinear, numerical calculations are performed. The ideal gas flow is calculated using a highly stable implicit iterative procedure with an Eulerian mesh. In order to avoid problems of anomolous dispersion associated with finite difference calculation, trace component convection and dispersion are calculated using a Lagrangian mesh. Details of the Eulerian- Lagrangian numerical technique are presented. Computer codes have been developed and implemented on the Lawrence Livermore Laboratory computer system. (TFD)

The objectives of this program are to devise, develop, test, and evaluate techniques for sodium (Na) removal from test specimens and components by the reaction of sodium with alcohol. As a prat of the alcohol process development, the following activities will be investigated (1) reaction rate studies, (2) process control and repeatability, control and inspection technique development, and (5) alcohol-Na removal process safety evaluation (Safety Report and Safety Specification). The culmination of this program will be a sodium cleaning process specification incorporating all of the pertinent data and other information generated by the Na-alcohol studies.

Objectives are to develop and test methods for removing sodium from specimens and components by evaporative and local heat gun techniques and by reacting with alcohol. (DLC)

Activities described include demonstrating the performance of the FFTF Instrument Tree Inflatable Seal, providing CRBRP design information based on tests of the IVHM Inflatable Seal to CRBRP conditions, performing the required analyses and testing to select a CRBRP dip seal configuration and determine its performance characteristics, and delineating the effects of sodium and radiation environments on the efficiencies of various seal materials.

None

A compilation of density values for aqueous sodium chloride solutions from 0 to 500/sup 0/C at pressures up to 2000 bars based on currently available experimental data is presented. These data are required to establish optimum operating temperatures, pressures, and flow rates for the production of geothermal brine fields, to minimize scaling and corrosion, and to design turbines for production of electricity. (WHK)

Using expressions for the $nu$ and anti $nu$ charged and neutral current cross sections and the electroproduction structure function integral and positivity requirements of the sea contribution, bounds are obtained on sigma/sup anti nu N//sigma/sup anti nu N/, and sigma/sup anti nu N//sub nc//sigma/sup nu N/ /sub nc/ in the standard model. A bound on sigma/sup anti nu N//sigma/sup nu N/ obtained with a V + A term anti p'$gamma$/sub mu/(1-$gamma$$sub 5$)n is used to rule out such a term in the current. A plot of sigma/sup nu N//sub nc/ + sigma/ sup anti nu N//sub nc/ versus sigma/sup nu N//sub nc/ - sigma/sup anti nu N//sub nc/ is introduced to analyze the neutral current data. A new relation connecting moments of y and y distributions at a particular point y/sub n/ for $nu$ and anti $nu$ interactions is found. The results do not depend on the neutral current data. (auth)