This report documents the meteorological concerns for Hanford Atomic Production Operations (HAPO). There was a concern that the radionuclides that were being released in the atmosphere. The author suggests a hypothesis to keep the radionuclides from migrating in the atmosphere. This hypothesis describes the washout of radionuclides and the leaching into the soil as a method to contain the radionuclides at the production facility. The hypothesis takes into account wind velocity, stable and unstable atmospheric conditions, convection, boundary layer problems, diffusion at greater distances away from the source of pollutant, altitude, and a possible solution.

This paper presents the history and current status Of computer networking between IHEP in Beijing, China and the rest of the world, starting with no links at the beginning of 1987 thru X.25 public networks and dial up links, to the installing, in March 1993, of one of the first dedicated 64 kbps satellite computer links between China and the outside world. In May 1994, IHEP became the first Chinese institution to have a fully operational world-wide Internet connection. Experience with this dedicated link between SLAC and IHEP will be presented together with future plans to add a land line between KEK and IHEP and to extend the links within China.

This summary of the research progress meeting on April 1, 1948 discusses the following topics: (1) Meson fission counter; (2) Delayed neutron periods; and (3) Products of bombardment of copper with high energy deuterons and helium ions.

Early in 1942 it had been found on a laboratory scale that certain impurities such as the Rare Earths were removed by small water washes from an ether solution of Uranyl Nitrate. It was hoped that in the large production units to be constructed that the water soluble impurities would all be washed out by the time the radioactive Thorium had been removed, so that the decrease in radioactivity could be used as an index of the amount of all kinds of impurity remaining in the ether layer. Experience has taught both the production and the laboratory chemist to view with suspicion a process which claims to separate one element from all others in the periodic system with a simple set of manipulations such as an extraction. Furthermore, there is the familiar example of iodide ion which anyone would expect to be oxidized to iodine and then be transferred almost quantitatively to the ether layer from which it would not wash out. It seemed reasonable that other elements or ions would be found which would fail to wash out of the ether layer. Since the objective was the removal of the neutron absorbers whether their danger coefficients were especially high …

None

None

None

None

None

None

None

A study was made of the distribution of Ag, Au, Bt, and Pd in the residues from an extraction process in which purified UO/sub 2/(NO/sub 3/)/sub 2/ is prepared from a pitchblende ore. The residues studied were the gangue Pb cake, the BaSO/sub 4/ cake, the filtrate boildown cake, the raffinate cake, and the purified UO/sub 2/(NO/sub 3/)/sub 2/. Samples representing three different batches of ore were used. The following conclusions were reached: (1) neither Ag nor Pd are present in the ore in significant quantities; (2) approximately 30 ppm of Au (based on U content) is present, of which 90% was found in the residue (gangue Pb cake) from the initial co-precipitation step; this residue contains gangue, PbSO/sub 4/, RaSO/sub 4/, and other insoluble sulfates; (3) the ore contains 15 ppm of Pt, which is distributed in an extremely varying manner in the residues leaving the process. (W. L.H.)

None

None

None

None

None

This report addresses the dissolution of uranium tetrafluoride.

None

None

None

None

None

None