The development and initial performance testing of an advanced integrated safeguards system at the Barnwell Nuclear Fuel Plant (BNFP) is described. The program concentrates on the integration and coordination of physical security and nuclear materials control and accounting at a single location. Hardware and software for this phase have been installed and are currently being evaluated. The AGNS/DOE program is now in its third year of development at the BNFP.

Preliminary results are presented of a numerical analysis to study the open-cycle mist flow process for ocean thermal energy conversion (OTEC). Emphasis in the analysis is on the mass transfer and fluid mechanics of the steady-state mist flow. The analysis is based on two one-dimensional models of the mist lift process: a single-group model describes a mist composed of a single size of drops and a multigroup model considers a spectrum of drop sizes. The single-group model predicts that the lift achieved in the mist lift process will be sensitive to the inlet parameters. Under conditions that lead to maximum lift in the model for a single drop size, the multigroup model predicts significantly reduced performance. Because the growth of drops is important, sensitivity of the predicted performance of the mist lift to variations in the collision parameters has been studied.

Analyzing power data have been obtained for {sup 3}He({vector p},p){sup 3}He elastic scattering at seven energies between 30 and 50 MeV at laboratory angles between 20° and 160°. Errors are typically less than 0.01. These results supplement earlier differential and total reaction cross-section and analyzing power data and new data obtained with a polarised {sup 3}He target.

An important question regarding the technique of angle-resolved photoemission (ARP) is the extent to which it can be used to determine experimental valence-band dispersion relations E{sub i}({rvec k}) for single crystalline solids. In the case of the 3d and 4d transition metals, studies of copper, nickel, palladium, and silver, show that a model based on the assumption of direct interband transitions (direct-transition model) may be used, in conjunction with an appropriate final-state dispersion relation E{sub f}({rvec k}), to elucidate E{sub i}({rvec k}) for these materials along several high symmetry lines (primarily {Gamma}{Lambda}L) in k-space. To answer this question more generally, we have undertaken an extensive study of the valence band structures of other transition metals along various k-space lines. To date, studies have been extended to the (111) faces of the 5d metals Pt and Au along with the Pt(100) ((5 x 20) surface structure) face, and the (110) and (100) faces of Ag. The experiments were all conducted at SSRL, using synchrotron radiation in the range 6 eV < h{nu} < 34 eV. The results of these studies, combined with our previous Ag(111) work at these energies, allow us to invoke important conclusions concerning the relationships between ARP data, …

Photocopy of the cover and an article in a Texas Monthly issue covering different topics such as acceptance of the gay and lesbian community in the United States, gay fashion, and the discrimination of minorities at gay bars.

Two theorems on the asymptotic distribution of a histogram density estimator based on randomly determined spacings introduced by Van Ryzin in 1973 are stated and proved. One theorem gives conditions for the pointwise asymptotic normality of the density estimator for points in the support of the density at which the density is continuously differentiable. A second theorem gives conditions for the pointwise asymptotic normality of the density estimator with a faster convergence rate for points in the support of the density at which the density is twice continuously differentiable. The results are used to compare the relative asymptotic efficiencies of the histogram estimator with the kernal method of density estimation.

A large reprocessing plant is a complex operation with dynamic inventories being required to provide for timely detection of attempted diversion of nuclear materials. The real-time, on-line process measurement capability controls the effectiveness of the dynamic techniques. An economical method to eliminate bias and significantly improve process differential pressure transmitter measurements is evaluated. Errors up to 1.0% have been reduced to less than 0.1%

The next generation of ODE software can be expected to detect special problems and to adapt to their needs. The low-cost, automatic detection of oscillatory behavior, the determination of its period, and methods for its subsequent efficient integration are addressed here, along with stiffness detection. In the first phase, the method for oscillatory problems discussed examines the output of any integrator to determine if the output is nearly periodic. At the point this answer is positive, the second phase is entered and an automatic, nonstiff, multirevolutionary method is invoked. This requires the occasional solution of a nearly periodic initial-value problem over one period by a standard method and the re-determination of its period. Because the multirevolutionary method uses a very large step, the problem has a high probability of being stiff in this second phase. Hence, it is important to detect if stiffness is present so that an appropriate stiff, multirevolutionary method can be selected. 6 figures.

How certain of the areas addressed by the Committee on the Biological Effects of Ionizing Radiation (BEIR) have attempted to deal with the scientific basis for establishing appropriate radiation protection guides is discussed, and what effect this may have on decision-making for the regulation of societal activities concerned with the health effects in human populations exposed to low-level radiation. (ACR)

We describe a general synthesis and preliminary physical and chemical properties of biscarbyne clusters prepared by a conceptually most simple route, the direct cleavage of alkynes.

Detailed methods are described for the sorting and cell cycle synchronization by means of centrifugal elutriation of an established mouse liver epithelial cell line(NMuLi). In a comparison between three different elutriation media and between two different temperatures(4° and 20° C), the NMuLi cells were found to be most reproducibly sorted in the cell cycle when run in growth medium in the absence of serum and at the lower temperature. Under these conditions. and using decrements of rotor speed calculated from an empirically derived algorithm as described in the text an initially asynchronous population (38% G{sub 1}, 36% S, and 28% G{sub 2}M) was sorted into fractions enriched to 60% G{sub 1}, 75% S, and 50% G{sub 2}M. Of the cells loaded into the rotor, 30% were lost in the elutriation process, and about 20% recovered as aggregates. The remainder appeared in the various synchronized fractions. Epithelial cells sorted in this manner demonstrated no loss of viability, and upon replating showed significant movement in the cell cycle by 6 hrs post elutriation. The degree of synchronous movement through the cell cycle achieved by elutriation depended on the part of the cell cycle from which the original elutriated fraction came. Cells collected …

The Crystal Ball detector at SPEAR is used to analyze the decays psi' ..-->.. ..gamma gamma..psi and psi' ..-->.. ..gamma..chi,chi ..-->.. ..gamma gamma... Values are obtained for the branching ratios of psi' ..-->.. eta/..mu../sup 0/psi and psi' ..-->.. ..gamma..chi,chi ..-->.. ..gamma..psi. No evidence is found for a 2/sup 1/S/sub 0/(eta'c) state in the mass range 3129 ..-->.. 3644 MeV/c/sup 2/. Analysis of the angular distributions in the cascade chi decays yields spin and multipole assignments for the chi(3.51) and chi(3.55).

A chemical aquatic ecology program currently in progress at the Geysers geothermal field in Northern California is described. The ultimate objective of the program is to assess the long-term ecosystem effects of development-related effluents to the aquatic environment. The first phase was designed to: (1) identify partitioning and transport in water and sediment of a wide range of elemental constituents, and (2) to determine the degree of impact of geothermal development in an area where a natural background of thermal tributaries and abandoned mercury mine tailings exist. Selected constituents such as ammonia, boron, sulfate and potassium are shown to be enriched in both natural geothermal waters and in cooling tower waters and emissions. Analyses implicate geothermal units as significant contributors of aquatic input. The most probable transport process is cooling tower drift.

The second-order achromat princople is used to correct the chromatic aberrations in a representative 75 GeV/c storage ring using four families of sextupoles. The ring chosen to illustrate the essential principles of the design procedure has the following general characteristics: Beam Energy = 75 GeV; Beta*(x) = 1.6 m; Beta*(y) = 0.1 m; Circumference = 25 km.

It is shown that one of the more recent tests of time reversal invariance, via measurements of the polarization and the analyzing power in p + {sup 13}C elastic scattering, does not, in fact, provide a significant test of time reversal invariance. This follows from the fact that the polarization-analyzing power equality depends on the equality of the two possible spin~flip probabilities. A possible non-zero difference between the spin-flip was beyond the precision of the experiment because the individual spin-flip probabilities are so small. It is immediately clear that tests of time reversal invariance should be made through measurements of the polarization and analyzing power in a reaction (and its inverse) where the spin-flip probability is expected or known to be large.

The motivation for formulating gauge theories on a lattice to study non-perturbative phenomena is reviewed, and recent progress supporting the compatibility of asymptotic freedom and quark confinement in the standard SU(3) Yang-Mills theory of the strong interaction is discussed.

HEDL has a requirement to ensure the identification of remote computer terminal operators on a real-time nuclear inventory data base. The integrity of this data base depends on input from authorized individuals. Thus, a key to developing such a system is the ability to positively identify people attempting access to the system. Small scale tests of the Identimat 2000T hand geometry unit with an adjusting alogrithm have suggested a promising solution. To prove operational suitability, HEDL, in cooperation with Sandia Laboratories, has designed a large scale test of the Identimat 2000T. Data gathering on error rates, reliability, maintainability, and user acceptance will determine if the Identimat 2000T is suitable for the HEDL application. If proven acceptable, use of the Identimat 2000T can be broadened to many general applications where security information, locations and systems are required.

Beta-delayed protons have been observed from the decays of the mass separated T{sub z} = -2 nuclides {sup 20}Mg, {sup 24}Si, and {sup 36}Ca. From these proton spectra the mass excesses of the lowest T = 2 states in the T{sub z} = -1 nuclei {sup 20}Na, {sup 24}Al, and {sup 36}K are determined to be 13420 {+-} 50 keV ({sup 20}Na), 5903 {+-} 9 keV ({sup 24}Al), and - 13168 {+-} 22 keV ({sup 36}K). The complete A = 20, 24, and 36 isospin quintets have all their members bound against isospin allowed particle-decay modes, providing a stringent test of the isobaric multiplet mass equation. Good agreement is observed for all these quintets using only the quadratic form of this equation. Radioactivity {sup 20}Mg, {sup 24}Si, {sup 36}Ca (mass separated); measured {beta}-delayed protons; deduced T{sub 1/2} and proton branching; derived mass excesses of the lowest 0{sup +}, T = 2 states in {sup 20}Na, {sup 24}Al, and {sup 36}K; deduced coefficients of the isobaric multiplet mass equation.

This report describes the activities, conclusions, and recommendations of the Workshop on Evaluation Systems for Renewable Energy Systems sponsored by the Agency for International Development and SERI, held 20-22 February 1980 in Golden, Colorado. The primary objectives of the workshop was to explore whether it was possible to establish common information elements that would describe the operation and impact of renewable energy projects in developing countries. The workshop provided a forum for development program managers to discuss the information they would like to receive about renewable energy projects and to determine whether common data could be agreed on to facilitate information exchange among development organizations. Such information could be shared among institutions and used to make informed judyments on the economic, technical, and social feasibility of the technologies. Because developing countries and foreign assistance agencies will be financing an increasing number of renewable energy projects, these organizations need information on the field experience of renewable energy technologies. The report describes the substance of the workshop discussions and includes the papers presented on information systems and technology evaluation and provides lists of important information elements generated by both the plenary sessions and the small working groups.

A waste treatment facility, designed on the basis of a feedrate of 1 l/hr of concentrated waste to a spray calciner, has been installed in a radiochemical hot cell at Pacific Northwest Laboratory. The facility includes three modules: feed preparation (storage tanks, evaporator, condenser), waste solidification (a spray calciner and in-can melter), and effluent control (venturi scrubber, cyclone separator, fission product adsorbers, nitrogen oxides destructor, iodine adsorber, HEPA filter, and packed scrubber). The system is flexible. The spray calciner and in-can melter can be easily removed and replaced by alternative solidification systems, and the effluent control system can be operated in many different sequences. Other components can be easily added to the effluent system for tests. Two effluent control flowsheets, designed to simulate those in defense waste and commercial waste processing plants, will be evaluated during the first radioactive runs. Most operational data from the system are remotely recorded continuously on strip-chart and multipoint recorders. Data on equipment operating parameters and upset conditions will be used to help maximize data on effluents, effluent decontamination factors and product quality. Five laboratory, pilot- and full-scale radioactive and nonradioactive waste solidification systems have already been operated at PNL. Experience with these systems demonstrated …

Parton-model predictions for lepton-pair production from polarized spin-1/2 particles are considered within the context of a formalism explained in a companion paper. The polarization effects in the quantum-chromodynamic 2 {yields} 2 subprocesses which contribute to lepton-pair production are found to be quite simple. Following the work of Ralston and Soper, polarized distribution functions are defined for gluons as well as quarks. Finally, a detailed discussion of polarization and the hard-scattering formalism is presented for the two cases of intrinsic parton transverse momentum allowed or forbidden.

A qualitative theory of the macroscopic dynamics of nucleus~nucleus collisions is presented. Attention is focused on three degrees of freedom: asymmetry, fragment separation, and neck size. The physical ingredients are a macroscopic (liquid~drop) potential energy, a macroscopic dissipation (in the form of the Wall- and Wall-plus-Window formulae) and a simplified treatment of the inertial force. These ingredients are distilled into algebraic equations of motion that can often be solved in closed form. The applications include the calculation of the normal modes of motion around the saddle-point shapes, and the division of nuclear reactions into: a) dinucleus (deep-inelastic) reactions, b) mononucleus or composite nucleus (quasi-fission) reactions, and c) compound-nucleus reactions. Static and dynamic scaling rules are deduced for comparing different dinuclear reactions in a systematic way. Estimates are given for the critical curve in the space of target and projectile mass above which deep-inelastic reactions ought to make their appearance. The extra push over the interaction barrier needed to make two nuclei form a composite nucleus or else to fuse into a compound nucleus is also estimated.

The DOE-2 building thermal-analysis program is utilized to analyze various measures for reducing energy consumption in single-family dwellings in northeastern Oregon. The results from the DOE-2 program are combined with energy price data and other economic assumptions to produce a ranking of the conservation measures according to their economic attractiveness. The study also provides an evaluation of the utility and cost-effectiveness of the DOE-2 program as a tool for the design of energy-efficient housing for specific climatic locations.

Results of studies on the effects of organics on /sup 99/Tc mobility are reported. The effects of organics (EDTA,DTPA and citrate) on the sorption/migration of Tc is examined from two aspects, first by desorption techniques where reduced, sorbed Tc is exposed to organic ligands; and second, by exposure of synthetic Tc-organic complexes to soils. A calcareous, sandy, loam Hanford soil (pH approx. 8.2) was used. Very little desorption of the reduced Tc has occurred both in the 10 day study (95-87% remains sorbed for 10/sup -6/ to 10/sup -8/ M levels even at cit/Tc - 10,000= and even less desorption is observed in the extended 45 day study (95-90% remains sorbed for 10/sup -6/ to 10/sup -9/ M levels). Similar results were also observed when a stronger chelating agent such as EDTA was used. Approximately 95% of the reduced Tc remains sorbed for the 10/sup -5/ to 10/sup -6/ M levels and approx. 70 remains sorbed at 10/sup -7/ M.