1/2/Sup +/. -->. 1/2/Sup -/ Beta Decay of /Sup 19/Ne and the Parity Nonconserving Nn Force (open access)

1/2/Sup +/. -->. 1/2/Sup -/ Beta Decay of /Sup 19/Ne and the Parity Nonconserving Nn Force

A branching ratio of (1.20 +- 0.20) x 10/sup -4/ is obtained for the ..beta../sup +/ decay of /sup 19/Ne to the 110 keV 1/2/sup -/ level of /sup 19/F. This transition (presumably dominated by the ..delta..J/sup ..pi../ = 0/sup -/ axial charge operator) provides a crucial test of wavefunctions used in interpreting the parity mixing of the ground and 110 keV levels of /sup 19/F. These wavefunctions, which yield a parity mixing larger than that observed experimentally, also predict too large a ..beta../sup +/ decay rate.
Date: 1978~
Creator: Adelberger, E. G.; Hindi, M. M.; Hoyle, C. D.; Swanson, H. E. & Von Lintig, R. D.
Object Type: Report
System: The UNT Digital Library
3-D object reconstruction emission and transmission tomography with limited angular input (open access)

3-D object reconstruction emission and transmission tomography with limited angular input

The effects of the angular range of data taking in reconstructions in planar positron cameras using the deconvolution method and the matrix method, respectively, are investigated. It is found that in the absence of any a priori information there are undetermined components in the reconstruction if the field of view of the positron camera is limited. However, most of the undetermined components are recovered in the case in which the transverse spacing of the object is discrete, and all of them are recovered if the fact that the object extent is finite is utilized. It is concluded that the two reconstruction methods are mathematically equivalent. The results obtained can be applied to other transmission and emission imaging devices.
Date: October 1978
Creator: Tam, K. C.; Perez-Mendez, V. & Macdonald, B.
Object Type: Article
System: The UNT Digital Library
3-D slug flow heat transfer analysis of coupled coolant cells in finite LMFBR bundles (open access)

3-D slug flow heat transfer analysis of coupled coolant cells in finite LMFBR bundles

A three-dimensional single region slug flow heat transfer analysis for finite LMFBR rod bundles using a classical analytical solution method has been performed. According to the isolated single cell analysis, the results show that the peripheral clad temperature variation as well as the thermal entrance length are strongly dependent upon the degree of irregularity displayed by various coolant geometries. Since under the present LMFBR conditions, fully-developed temperature fields may hardly be established in such characteristic rod bundle regions, a 3-D heat transfer analysis seems to be mandatory. This implies that the results of fully developed heat transfer analyses are by far too conservative.
Date: February 1, 1978
Creator: Wong, C.N. & Wolf, L.
Object Type: Report
System: The UNT Digital Library
10 MW Solar Thermal Pilot Plant Dynamic Simulation Volume 1 Computer Program Description (open access)

10 MW Solar Thermal Pilot Plant Dynamic Simulation Volume 1 Computer Program Description

This report is written as a partial account of work performed for the Department of Energy on the 10 MW Solar Thermal Pilot Plant Project. This report is in two parts: Computer Program Description and Computer Program Source Listing.
Date: December 1, 1978
Creator: Best, E. N.; Duroux, J. W.; Laurence, C. L.; Maxwell, F. D. & Randall, C. M.
Object Type: Report
System: The UNT Digital Library
10 MW Solar Thermal Pilot Plant Dynamic Simulation Volume 2 Computer Program Source Listing (open access)

10 MW Solar Thermal Pilot Plant Dynamic Simulation Volume 2 Computer Program Source Listing

This report consists of the actual computer source listing of Program 10 MW Solar Thermal Pilot Plant (STMPPS).
Date: December 1, 1978
Creator: Energy Projects Directorate
Object Type: Report
System: The UNT Digital Library
10-MWe pilot-plant-receiver panel test requirements document solar thermal test facility (open access)

10-MWe pilot-plant-receiver panel test requirements document solar thermal test facility

Testing plans for a full-scale test receiver panel and supporting hardware which essentially duplicate both physically and functionally, the design planned for the Barstow Solar Pilot Plant are presented. Testing is to include operation during normal start and shutdown, intermittent cloud conditions, and emergencies to determine the panel's transient and steady state operating characteristics and performance under conditions equal to or exceeding those expected in the pilot plant. The effects of variations of input and output conditions on receiver operation are also to be investigated. Test hardware are described, including the pilot plant receiver, the test receiver assembly, receiver panel, flow control, electrical control and instrumentation, and structural assembly. Requirements for the Solar Thermal Test Facility for the tests are given. The safety of the system is briefly discussed, and procedures are described for assembly, installation, checkout, normal and abnormal operations, maintenance, removal and disposition. Also briefly discussed are quality assurance, contract responsibilities, and test documentation. (LEW)
Date: August 25, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
10-MWe pilot-plant-receiver-panel test-requirements document: Solar Thermal Test Facility (open access)

10-MWe pilot-plant-receiver-panel test-requirements document: Solar Thermal Test Facility

Plans are presented for insolation testing of a full-scale test receiver panel and supporting hardware which essentially duplicate both physically and functionally the design planned for the 10 MWe pilot plant. Testing includes operation during normal start and shutdown, intermittent cloud conditions, and emergencies to determine the transient and steady state operating characteristics and performance under conditions equal to or exceeding those expected in the pilot plant. The effects of variations of input and output conditions on receiver operation are also to be investigated. A brief description of the pilot plant receiver subsystem is presented, followed by a detailed description of the receiver assembly to be tested at the Solar Thermal Test Facility. Major subassemblies are described, including the receiver panel, flow control, electrical control and instrumentation, and the structural assembly. Requirements of the Solar Thermal Test Facility for the tests are given. System safety measures are described. The tests, operating conditions, and expected results are presented. Quality assurance, task responsibilities, and test documentation are also discussed. (LEW)
Date: June 10, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
16. 3 eV neutron capture in /sup 107/Ag: nuclear structure of /sup 108/Ag. [Transitions, J correlations,. pi. ] (open access)

16. 3 eV neutron capture in /sup 107/Ag: nuclear structure of /sup 108/Ag. [Transitions, J correlations,. pi. ]

The ..gamma.. rays from neutron capture in the 0- resonance of /sup 107/Ag at 16.3 eV were studied. Thirteen primary transitions populate spin 1 levels in /sup 108/Ag below an energy of 1.5 MeV. Transitions from low lying levels change in intensity by as much as a factor of 2 between thermal neutron capture (largely spin 1) and the 0- resonance, indicating a strong correlation of the population with level spin. 7 references.
Date: January 1, 1978
Creator: Orr, G. B.; Kane, W. R. & Smith, G. J.
Object Type: Article
System: The UNT Digital Library
20 kW Transmitter for CW Operation at 50 or 17 MHz (open access)

20 kW Transmitter for CW Operation at 50 or 17 MHz

This report was prepared as an account of work sponsored by an agency of the United States Government.
Date: April 4, 1978
Creator: Keane, J. T.
Object Type: Report
System: The UNT Digital Library
26 - LMFBR flexible pipe joint development (open access)

26 - LMFBR flexible pipe joint development

Objective is the qualification of a PLBR-size primary loop flexible piping joint to the ASME Band PVC rules. Progress and activities are reported for: Class 1 flexible joint code approval support, engineering and design, material development, component testing, and manufacturing development. (DLC)
Date: May 1, 1978
Creator: Anderson, R.V.
Object Type: Report
System: The UNT Digital Library
30-MJ superconducting magnetic energy storage (SMES) unit for stabilizing an electric transmission system (open access)

30-MJ superconducting magnetic energy storage (SMES) unit for stabilizing an electric transmission system

Electric power systems that have major loads and generation centers separated by large distances may experience low-frequency power oscillations. This type of oscillation has occurred on the Pacific ac intertie that connects southern California and the Pacific Northwest. A separate, almost parallel, dc-transmission line also connects these areas. The Bonneville Power Administration, which operates this transmission system, has overcome the instability by controlling the power transmitted on the dc-transmission line. A 30-MJ (8.4-kWh) superconducting magnetic energy storage unit with a 10-MW converter could also provide damping for this instability. The conceptual design of the 30-MJ coil and the cryogenic and electrical components of the system are described. The system is to operate at a maximum current of 5 kA and will modulate the ac Intertie at 0.35 Hz. Discharge will be controlled to retain a minimum stored energy of 20 MJ to limit cyclic strains in the coil and ac losses in the conductor. The conductor will be made of multistrand-copper and copper-matrix, multifilament NbTi superconducting wires on a stainless steel mandrel.
Date: January 1, 1978
Creator: Rogers, J. D.; Boenig, H. J.; Bronson, J. C.; Colyer, D. B.; Hassenzahl, W. V.; Turner, R. D. et al.
Object Type: Article
System: The UNT Digital Library
40-kW field test power plant modification and development. Monthly technical status report No. 13, September 16, 1978-October 15, 1978 (open access)

40-kW field test power plant modification and development. Monthly technical status report No. 13, September 16, 1978-October 15, 1978

The contract objective is to complete the design and development actions that upgrade the 40-kW fuel cell power plant to a configuration suitable for on-site demonstration testing. The modifications will improve operating capability, durability and maintenance interval and lead to reduced production costs. Equipment to recover and use the by-product heat of electric generation will be available on the power plant for field verification of on-site heat recovery. The 40-kW power plant will be compatible with the power characteristics required for conventional heat pumps and conventional 60 Hz, 120/208 volts electrically operated equipment. Progress is reported. (WHK)
Date: November 10, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
60-inch annular pitch polisher for LASL's LASER-fusion effort (open access)

60-inch annular pitch polisher for LASL's LASER-fusion effort

The Antares laser will require that about 100 high-precision NaCl windows of 18-in. diameter be produced, maintained, and repaired. To aid the industry in achieving the required production rates, a polishing development program was undertaken by LASL's Laser Division in collaboration with the Air Force and International Laser Systems. The design and initial shakedown of the polishing machine is described. Preliminary results indicate the machine's design is sound, its operation is generally simple, and it should be capable of finishing 18-in. NaCl to better than lambda/2 visible and 20-10 surface. Shakedown work with glass has demonstrated 0-0 surface, complete absence of edge roll, and lambda/16 over 12 in., and lambda/6 over 19 in.
Date: November 9, 1978
Creator: Williamson, Raymond
Object Type: Article
System: The UNT Digital Library
150-kV, 80-A solid state power supply for neutral beam injection (open access)

150-kV, 80-A solid state power supply for neutral beam injection

A 150-kV, 80-A power supply and neutral beam test facility is now operational at the Lawrence Berkeley Laboratory, Berkeley, California. This supply uses banks of 450-V electrolytic capacitors for over 10/sup 6/ joules of energy storage. SCR switches control the power flow to the neutral beam accelerator. Turn on and off times of a few microseconds are possible. An auxiliary capacitor bank also uses SCR switches to provide regulation (''flat-topping'') of the main bank output by switching in additional capacitors as the main bank discharges. Air-operated switches are used to connect the main-bank sections in parallel for charging and series or parallel for discharge, depending on the operating voltage desired. A single digital switch sets the desired operating voltage. Filament and arc power supplies are also solid state. With the exception of the suppressor supply which has one vacuum tube the complete neutral beam system uses all solid state components.
Date: August 1, 1978
Creator: Owren, H.; Baker, W.; Hopkins, D. & Milnes, K.
Object Type: Article
System: The UNT Digital Library
400-MWe Consolidated Nuclear Steam System (CNSS). 1200-MWt Phase 2A interim studies. [PWR] (open access)

400-MWe Consolidated Nuclear Steam System (CNSS). 1200-MWt Phase 2A interim studies. [PWR]

The Phase 2A interim studies of the Consolidated Nuclear Steam System (CNSS) consisted of a number of separate task studies addressing the design concepts developed during the Phase 1 study reported in BAW--1445. The purpose of the interim studies was to better establish overall concept feasibility from both a hardware and economic standpoint, to make modification and additions to the design where appropriate, and to understand and reduce the technical risks in critical areas of the design. The work on these task studies included input from Barberton, Mt. Vernon, and the Alliance Research Center as well as United Engineers and Constructors (UE and C). The UE and C work was carried out under a separate DOE contract.
Date: September 1, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
1975 energy conditions in the South (open access)

1975 energy conditions in the South

This report depicts energy supply and demand conditions in the South in 1975 and highlights differences in production and utilization patterns relative to the United States (some of the consumption data is for 1974). Significant changes during the previous three years are noted to provide continuity with the predecessor report, Energy Conditions in the South: 1972. The most important changes are the substantial increase in nuclear generation of electricity, the absolute and relative decline in oil and gas production, and the increase in per capita energy consumption relative to the nation. Each state within the region is described in detail to ascertain important sub-regional differences in energy conditions. The intent is to provide a description rather than analysis of regional energy patterns, noting variations and emphasizing the comparative advantages of the South. Such a presentation can yield insight into the future role of the region in contributing to the economic growth and welfare of the nation as its natural resource base is depleted and the transition to alternative energy sources is made.
Date: March 1, 1978
Creator: Rice, Patricia L.
Object Type: Report
System: The UNT Digital Library
1976 annual summary report (open access)

1976 annual summary report

Abstracts of papers published during the previous calendar year, arranged in accordance with the project titles used in the USDOE Schedule 189 Budget Proposals, are presented. The collection of abstracts supplements the listing of papers published in the Schedule 189. The following subject areas are represented: high-energy physics; nuclear physics; basic energy sciences (nuclear science, materials sciences, solid state physics, materials chemistry); molecular, mathematical, and earth sciences (fundamental interactions, processes and techniques, mathematical and computer sciences); environmental research and development; physical and technological studies (characterization, measurement and monitoring); and nuclear research and applications.
Date: March 1, 1978
Creator: unknown
Object Type: Report
System: The UNT Digital Library
1977 environmental monitoring report (open access)

1977 environmental monitoring report

The environmental levels of radioactivity and other pollutants found in the vicinity of Brookhaven National Laboratory (BNL) during 1977 are summarized in this report. As an aid in the interpretation of the data, the amounts of radioactivity and other pollutants released in airborne and liquid effluents from Laboratory facilities to the environment are also indicated. The environmental data includes external radiation levels; radioactive air particulates; tritium and iodine concentrations; the amounts and concentrations of radioactivity in and the quality of the stream into which liquid effluents are released; the concentrations of radioactivity in sediments and biota from the stream; the concentrations of radioactivity in and the quality of ground waters underlying the Laboratory; and concentrations of radioactivity in milk samples obtained in the vicinity of the Laboratory.
Date: April 1, 1978
Creator: Naidu, J R
Object Type: Report
System: The UNT Digital Library
1978 annual report on laser fusion research (open access)

1978 annual report on laser fusion research

Progress during this period is reported for each of the following topics: (1) spherical shell fuel containers, (2) polymer research, (3) cryogenic technology, (4) fabrication technology, (5) implosion physics, (6) fast ion measurements of laser-produced spherical plasmas, (7) absorbed energy measurements, (8) diagnostics, (9) fast ion energy loss in dense plasmas, (10) electron transport, (11) ionization equation of state, (12) profile modification by pondermotive forces, (13) pondermotive potential effects on Ohm's law, (14) effect of flux-limited thermal transport on critical surface jump conditions, (15) spherical rarefaction shocks, (16) explosively heated Gaussian objects, (17) bandwidth broadening, (18) frequency doubling experiments, (19) advanced laser candidates, (20) glass laser operation, and (21) 2TW laser upgrade. (MOW)
Date: January 1, 1978
Creator: Johnson, R.R. (ed.)
Object Type: Report
System: The UNT Digital Library
1978 breeding-bird censuses (open access)

1978 breeding-bird censuses

As part of a program to characterize the plant and animal life of the Laboratory site and surrounding areas, the two breeding-bird censuses taken in 1977 were repeated in 1978. Five observers made thirteen census trips to both the BNL and Westhampton plots. A decrease in Rufous-sided Towhees occurred on both plots, but other changes were small and not considered significant.
Date: September 1, 1978
Creator: Raynor, G. S.
Object Type: Report
System: The UNT Digital Library
1978 source book for fusion--fission hybrid systems (open access)

1978 source book for fusion--fission hybrid systems

This study summarizes the promise and timing of the hybrid concept and culminates in a generic R and D timetable. This document emphasizes the meaningfulness of the concept to tomorrow's energy needs and energy production systems rather than strict analysis of technical feasibility. (MOW)
Date: December 1, 1978
Creator: Crowley, J. H.; Pavlenco, G. F. & Kaminski, R. S.
Object Type: Report
System: The UNT Digital Library
1978 source book for fusion--fission hybrid systems. Executive summary (open access)

1978 source book for fusion--fission hybrid systems. Executive summary

The 1978 Source Book for Fusion--Fission Hybrid Systems was prepared by United Engineers and Constructors Inc. for the U.S. Department of Energy and the Electric Power Research Institute. It reviews the current status of fusion--fission hybrid reactors, and presents the prevailing views of members of the fusion community on the RD and D timetable required for the development and commercialization of fusion--fission hybrids. The results presented are based on a review of related references as well as interviews with recognized experts in the field. Contributors from the academic and industrial communities are listed.
Date: December 1, 1978
Creator: Crowley, John H.; Pavlenco, G. F. & Kaminski, R. S.
Object Type: Report
System: The UNT Digital Library
2XIIB plasma confinement experiments (open access)

2XIIB plasma confinement experiments

This paper discusses results of plasma-confinement experiments in the 2XIIB magnetic mirror device. We report experiments attempting to achieve field-reversal using neutral-beam injection in which the central magnetic field is reduced by 90% but field lines are not closed. Experiments with different neutral-beam aiming show that at constant beta both electron temperature and the energy-confinement parameter (n tau) increase at larger radius. Finally, we discuss recent improvements in electron temperature and microinstability measurements.
Date: January 1, 1978
Creator: Simonen, T.C.; Clauser, J.F. & Coensgen, F.H.
Object Type: Article
System: The UNT Digital Library
3X CPC Solar Collector. Technical Progress Report, May 7-November 7, 1978 (open access)

3X CPC Solar Collector. Technical Progress Report, May 7-November 7, 1978

This report documents the technical progress through the first six months of this one-year program under DoE Contract which was effective 1 May 1978.
Date: December 22, 1978
Creator: Ballheim, Robert W.
Object Type: Report
System: The UNT Digital Library