The authors have measured neutron-proton elastic scattering cross sections for four-momentum transfers .17 {le} -t {le} 3.5(GeV/c){sup 2}. The logarithmic slope parameter is found to be consistent with existing proton-proton parameterizations. The data also exhibit a dip in the cross section near -t {approx} 1.4(geV/c){sup 2} for incident neutron momenta above 200 GeV/c. Differences between n-p and p-p cross sections are noted in the region .7 {le} -t {le} 1.4(GeV/c){sup 2}.

From an exposure of the Fermilab 15-ft Neon (64 atomic %)-H{sub 2} filled bubble chamber to a single-horn-focused {bar {nu}} beam, they have found 60 e{sup -}X and 35 e{sup +}X events, which they compare with 227 {mu}{sup -}X and 202 {mu}{sup +}X events. No statistically significant departures from {mu}-e universality are seen.

In laser flow cytophotometry, an increasingly popular technique of analytical cytology, quantitative measurements of interest include cell and nuclear diameters. Electronic circuitry for a new method of time-of-flight cell sizing was developed which measures the time that signal pulses from either fluorescence or light scatter sensors exceed a preset constant fraction of the peak signal amplitude (pulse width) or the time that it takes a signal to rise between constant fractions of the peak signal amplitude on the rising side of the pulse (pulse rise-time). These pulse width or pulse rise-time measurements were related to cell or nuclear diameters and were used in combination to determine nuclear size to cell size ratios. This new type of time-of-flight sizing was found to be independent of fluorescent or light-absorbing stain intensity, linearly related to cell or nuclear diameter, and capable of resolving diameter differences of less than 0.5 ..mu..m.

The United States Nuclear Regulatory Commission (NRC) has established the NRC/Reactor Safety Research (RSR) Data Bank Program at the Idaho National Engineering Laboratory (INEL). The program provides the means of collecting, storing, and making available experimental data from the many water reactor safety research programs in the United States and other countries. The program collects qualified engineering data on a prioritized basis from experimental program data bases, stores the data in a single data bank in a common format, and makes the data available to users.

One of the types of hypothetical accidents important in the safety analysis of Liquid Metal Fast Breeder Reactors is that in which fission gas release is postulated to occur from the plena of fuel pins at such a rate that significant perturbation to coolant flow occurs. Past consideration of such events has employed highly conservative calculations in the interest of simplicity and expediency. This paper describes a method developed to predict more accurately the thermal consequences of such fission gas release events.

Separate abstracts were prepared for the 18 papers presented in this volume. (WHK)

Brief descriptions are given of the following three systems: (1) thermosyphon system, (2) system with drain-down freeze protection, and (3) system with antifreeze as freeze protection. (MOW)

The diets of mule deer (Odocoileus hemionus hemionus) on shrub-steppe rangeland of south central Washington were estimated by microhistological examination of fecal pellets. On rangelands, it is necessary to know the diets of herbivores and availability of forage plants to provide information for formulating better management programs for both plants and animals. The purpose of this study was to determine the dietary habits of mule deer at three locations on the 200 area plateau of the Hanford Reservation in south central Washington. The study area has not been grazed by livestock since 1943, but small mammals such as the black-tailed hare (Lepus californicus) and ground squirrels (Citellus townsendi) do feed there.

This brief review gives a summary of both the current AGS capabilities and several possible improvements which either have been underway for awhile or are still at the stage of contemplation.

Separate abstracts were prepared for the 33 papers presented. (WHK)

Conceptual design of a 20 MJ superconducting coil is described which was developed to demonstrate the feasibility of an ohmic-heating system. The superconductor material was Nb/sub 3/Sn for a 9 tesla maximum field. Cabled and braided conductors were investigated and the braided conductors were identified as the best alternates due to their high operating current densities and because of its porosity. The coil was designed to be cryostable for bipolar operation from +9 tesla to -9 tesla maximum field within 1 second. The forced cooled design utilizes cross flow cooling. The coil was designed to generate the flux swing while simultaneously meeting the limitations imposed by cooling, insulation, current density and stresses in the materials.

The Holifield Heavy Ion Research Facility presently operates the Oak Ridge Isochronous Cyclotron (ORIC). This accelerator provides heavy ions up to argon with energies useful for nuclear physics. The Phase I expansion of this facility, now a year away from completion, includes a 25-MV vertical folded tandem accelerator, beam transport and injection systems to use the ORIC as an energy booster, and additional experiment areas for the beams directly from the tandem. The tandem--cyclotron combination will provide heavy ions with energies up to 25 MeV/A for A < 35 and above 6 MeV/A up to A = 160, with intensities greater than or equal to 10/sup 11/ particles/sec. Building construction for the project is essentially complete. The accelerator manufacturer, National Electrostatics Corporation, has completed installation and testing of the 10-m-diam by 30-m-high accelerator pressure vessel and has begun installation of the accelerator systems. The accelerator has previously been assembled at the NEC plant and the digital control system operated without voltage on the column. Voltage tests are expected to begin in Oak Ridge in January 1979 with beam tests to begin in March. Completion of the project, including acceptance tests of the tandem and the beam injection system for ORIC …

Fluctuating voltage signals on the potential taps of the Argonne National Laboratory (ANL) 5.0 Tesla MHD Superconducting Dipole Magnet have been observed during MHD power generation at the U-25 B Facility at the High Temperature Institute (IVAN), Moscow, U.S.S.R. The voltage fluctuations are analyzed with special emphasis on magnet stability. Various other thermodynamic and electrical parameters of the U-25 B flow train have been recorded and statistical correlations between these signals and the signals observed at the magnet terminals are described.

Deep Level Transient Spectroscopy (DLTS) has been applied for the first time to high-purity germanium p-i-n diodes. Using the correlator technique, a large number of peaks due to acceptor levels in the forbidden band have been observed. The levels due to substitutional copper, to copper--hydrogen complexes and to divacancy-hydrogen defects have been positively identified. Several unknown levels have been discovered. The results obtained with DLTS are in excellent agreement with results from Hall-effect measurements. DLTS is the perfect tool to follow the creation and annealing of radiation defects.

This paper describes a program for developing analytical techniques to evaluate the response of nuclear material shipping containers to severe accidents. Both lumped-mass and finite element techniques are employed to predict shipping container and shipping container-carrier response to impact. The general impact problem is computationally expensive because of its nonlinear, three-dimensional nature. This expense is minimized by using approximate models to parametrically identify critical cases before more exact analyses are performed. The computer codes developed for solving the problem are being experimentally substantiated with test data from full-scale and scale-model container drop tests. 6 figures, 1 table.

Separate abstracts were prepared for each of the 28 included papers. Abstracts for the remaining 43 papers appeared earlier in ERA. (MOW)

The purpose of this paper is to examine the initial acceptance test experience of certain pieces of auxiliary equipment of the Fast Flux Test Facility (FFTF). The scope focuses on the DHX blowers and drive train, inert gas blowers, H and V containment isolation valves, and the Surveillance and In-service Inspection (SISI) transporter and trolley. For each type of equipment, the discussion includes a summary of the design and system function, installation history, preoperational acceptance testing procedures and results, and unusual events and resolutions.

Large-area, positron-sensitive detectors are used in annihilation coincidence systems for studies with positron-decay radiopharmaceuticals. Factors which limit the spatial resolution in such systems are analyzed. These factors include: (1) the intrinsic spatial resolution of the detector, (2) parallax errors, (3) range of positrons in tissue, and (4) angular deviation of the coincident photon pair from colinearity.

An extractor for accelerating 50 A of deuterium ions to 10 keV for injection into a metal-vapor charge-exchange cell has been designed. The beam-forming electrodes are convection cooled and capable of continuous service.

The purpose of the symposium was to review the current status of the concentrating collector technology, to disseminate the information gained from experience in operating solar systems, and to highlight the significant areas of technology development that must be vigorously pursued to foster early commercialization of concentrating solar collectors. Separate abstracts were prepared for thirteen invited papers and working group summaries. Two papers were previously abstracted for EDB.

This workshop was devoted entirely to beam cooling and to high luminosity anti pp storage rings. Abstracts of individual items from the workshop were prepared separately for the data base. (GHT)

The interrelationships among different demographic factors, specific causes of death, median family income, and estimated air pollution emissions were examined. Using the Medical Data Base (MEDABA) developed at Brookhaven National Laboratory, the entire population of the United States was cross-tabulated by income and emission levels of air pollutants. Path analysis was used to examine a number of patterns and relationships for each age, race, and sex group containing a minimum of 10,000 persons. Competitive and complementary effects were observed. These effects were frequently age dependent and occasionaly sex related. This specialized data base, the application of path analysis, and the development of a dynamic population and mortality model, in combination, proved to be a useful tool for investigating the effects of energy related pollutants on the exposed population.

The symposium dealt with the state of the art of injection of fluids underground, and its application to geothermal systems in particular. Separate abstracts were prepared for fourteen papers and three abstracts of papers were listed by title. Three papers were previously abstracted for EDB.

The roles of each type of experiment in establishing uniquely the values of the the neutral-current couplings of u and d quarks are analyzed together with their implications for gauge models of the weak and electromagnetic interactions. An analysis of the neutral-current couplings of electrons and of the data based on the assumption that only one Z/sup 0/ boson exists is given. Also a model-independent analysis of parity violation experiments is discussed. 85 references. (JFP)