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Reaction mechanism of oxygen atoms with unsaturated hydrocarbons by the crossed molecular beams method

Description: From a series of studies of the reaction of oxygen atoms with unsaturated hydrocarbons using the crossed molecular beam method, the dominant reaction mechanisms were found to be the simple substitution reactions with oxygen atoms replacing H, Cl, Br atom or alkyl groups. Complication due to secondary reaction was avoided by carrying out experiments under single collisions and observing primary products directly. Primary products were identified by measuring the angular and velocity distributions of products at all the mass numbers which could be detected by the mass spectrometer, and from comparison of these distributions, applying the requirement of energy and momentum conservation.
Date: April 1, 1982
Creator: Buss, R.J.; Baseman, R.J.; Guozhong, H. & Lee, Y.T.
Partner: UNT Libraries Government Documents Department

Status of the AGS polarized H/sup -/ source

Description: Development of a polarized H/sup -/ source for the AGS polarized proton project, initially begun at Argonne National Laboratory in 1979, has been continuing at Brookhaven National Laboratory since early 1982. A description of the source is given and the status of the project is reviewed.
Date: January 1, 1982
Creator: Kponou, A.; Schueler, K.P. & Hughes, V.W.
Partner: UNT Libraries Government Documents Department

Progress in the development of steady state negative ion sources for fusion applications

Description: During the past few years or so, the development of steady state sources of negative hydrogen or deuterium ions has made a substantial progress. There are several approaches under investigation, some operating with long pulses and some in a true steady state, and delivering H/sup -/ or D/sup -/ beam currents of several hundred mA up to 1 A. The improvement in the gas efficiency from a few percent for pulsed sources to the range of 5% to 15% and possibly even higher for the new sources, is another advance that was not anticipated only 4 to 5 years ago. A higher gas efficiency has come as the result of using independent plasma generation and geometrical focusing of surface produced negative ions. The power efficiency has not been changed so much, but, in a high energy system, savings of a few kW/A are less important than the reduction of the gas load. It can be expected that within five or so years a small (<1 MW) long pulse or steady state neutral beam system based on negative ions could be put into operation.
Date: January 1, 1982
Creator: Prelec, K.
Partner: UNT Libraries Government Documents Department

Charged-particle elastic cross sections

Description: Modern treatments of energy loss in plasmas through elastic scattering of energetic ions require complete knowledge of charged-particle elastic cross sections. R-matrix theory provides an explicit separation of nuclear and Coulomb effects in these cross sections, and gives reasonable extrapolations to small angles and low energies, where data may be scarce. We outline the calculation of charged-particle elastic cross sections from R-matrix parameters, and given examples for d-T, d-..cap alpha.., and t-..cap alpha.. scattering, obtained from comprehensive analyses of reactions in the /sup 5/He, /sup 6/Li, and /sup 7/Li compound systems. Expansion coefficients for an exact polynomial representation for the difference of the scattering and Rutherford cross sections (sigma/sub NI/) are given for d-T scattering. Integral quantities involving sigma/sub NI/ calculated from the present cross sections disagree substantially in some cases near resonances with a recent Livermore evaluation.
Date: January 1, 1982
Creator: Hale, G.M.; Dodder, D.C. & DeVeaus, J.C.
Partner: UNT Libraries Government Documents Department

Response of RRGI 6 and RRGI 7 to injection during the 5-MW plant operations, March 25 to June 15, 1982, at Raft River, Idaho

Description: Injection testing conducted between March 25 and June 15, 1982 at the Raft River Site generated a substantial quantity of non-isothermal and various temperature transient pressure data. Injection pressure build-up measured at the wellhead strongly responds to temperature changes of the injected fluid. An increase in the fluid temperature results in an injection pressure increase while a temperature decrease is followed by an injection pressure decline. Data analyses indicate that changes in fluid viscosity and density due to temperature changes do not explain pressure build-up responses. The pressure build-up behaviors are attributed to the reservoir transmissivity changes. The absolute wellhead pressure value are significantly lower than predicted for the cold fluid injection.
Date: January 1, 1982
Creator: Skiba, P.A.
Partner: UNT Libraries Government Documents Department

Review of operating history at the Palisades Nuclear Plant

Description: the Systematic Evaluation Program Branch (SEPB) of the Nuclear Regulatory Commission (NRC) is conducting the Systematic Evaluation Program whose purpose is to determine the safety margins of the design and operation of the eleven oldest operating commercial nuclear power plants in the United States. A portion of the SEP includes the compilation and interpretation of operational occurrences at these plants. This summary describes the methodology and results of the operational experience review of Palisades Nuclear Plant. The review includes a detailed examination of the operating experience in two segments - plant shutdowns and power reductions, and reportable events.
Date: January 1, 1982
Creator: Mays, G.T. & Harrington, K.H.
Partner: UNT Libraries Government Documents Department

Demonstration of a noise-surveillance system at a PWR

Description: The automated surveillance system has monitored the Sequoyah Nuclear Plant during its first fuel cycle. The system was able to acceptably adapt to different plant operating conditions. While evaluations are still ongoing, results indicate that the system was able to adapt to signals with different statistical character and that the discriminants are useful in detecting spectral changes. The system monitored long-term noise behavior, detected spectra that differ from what is considered normal, and provided concise storage of spectra together with the plant operating condition associated with the stored spectra.
Date: January 1, 1982
Creator: Smith, C.M.
Partner: UNT Libraries Government Documents Department

Predicted properties of the W/sup +/,W/sup -/ and Z/sup 0/

Description: Predicted properties of the W/sup +/,W/sup -/ and Z/sup 0/ bosons in the standard SU(2) x U(1) model are presented. For the current value of the weak mixing angle, sin/sup 2/ theta/sub W/(m/sub W/) = 0.215 +- 0.014, one finds m/sub W/ = 83.0(+3.0,-2.8) GeV and m/sub Z/ = 93.8(+2.5,-2.4) GeV. Implications of deviations from these predictions are discussed. decay rates and branching ratios for the W/sup +/,W/sup -/ and Z/sup 0/ are given. Radiative corrections, higher order rare decays and exotic possibilities are described.
Date: January 1, 1982
Creator: Marciano, W.J. & Parsa, Z.
Partner: UNT Libraries Government Documents Department

Raft River 5MW plant startup experience

Description: The initial startup occurred during the period from October 20 to November 2, 1981. During that period the plant was operated at the full thermal power of 44MW. The electrical power was limited to 1MW because of problems. The plant was then shutdown for repairs and corrections noted during this initial operation. On April 15, 1982 plant operation was again started and continued in operation until June 15, 1982. During this period engineering tests were performed. The plant has operated at a maximum electrical power output of about 4.8MW(e) which is somewhat lower than predictions for the resource and ambient temperatures that have existed. Some of the reasons for this difference and the problems encountered are discussed.
Date: January 1, 1982
Creator: Whitbeck, J.F.
Partner: UNT Libraries Government Documents Department

Three-body forces

Description: Three-body forces are defined and their properties discussed. Evidence for such forces in the trinucleon bound states and scattering reactions is reviewed. The binding energy defects of the trinucleon bound states, the /sup 3/He charge density, the Phillips line for doublet n-d scattering lengths, and three-nucleon breakup reactions are discussed, together with the possible influence of three-body forces on these observables.
Date: January 1, 1982
Creator: Friar, J.L.
Partner: UNT Libraries Government Documents Department

Optical pumping for intense polarized ion sources

Description: Laser optical pumping without buffer gas in dense (NL>10/sup 12/ atoms/cm/sup 2/) sodium vapor targets was investigated. The atomic polarization of the target was determined from the Faraday rotation angle of a second dye laser tuned midway between the sodium D-lines. Substantial polarizations were measured even though the pump laser bandwidth (approx. 1 MHz) was much smaller than the Doppler and hyperfine broadened sodium absorption line (approx. 3 GHz). Theoretical calculations based on rate equations in an idealized 3-level, ..lambda..-type system adequately reproduce the data. These calculations predict very high polarizations (P>0.8) at power levels produced in commercially available ring dye lasers.
Date: January 1, 1982
Creator: Cornelius, W.D.; Taylor, D.J.; York, R.L. & Hinds, E.A.
Partner: UNT Libraries Government Documents Department

Brief account of the effect of overcooling accidents on the integrity of PWR pressure vessels

Description: The occurrence in recent years of several (PWR) accident initiating events that could lead to severe thermal shock to the reactor pressure vessel, and the growing awareness that copper and nickel in the vessel material significantly enhance radiation damage in the vessel, have resulted in a reevaluation of pressure-vessel integrity during postulated overcooling accidents. Analyses indicate that the accidents of concern are those involving both thermal shock and pressure loadings, and that an accident similar to that at Rancho Seco in 1978 could, under some circumstances and at a time late in the normal life of the vessel, result in propagation of preexistent flaws in the vessel wall to the extent that they might completely penetrate the wall. More severe accidents have been postulated that would result in even shorter permissible lifetimes. However, the state-of-the-art fracture-mechanics analysis may contain excessive conservatism, and this possibility is being investigated. Furthermore, there are several remedial measures, such as fuel shuffling, to reduce the damage rate, and vessel annealing, to restore favorable material properties, that may be practical and used if necessary. 5 figures.
Date: January 1, 1982
Creator: Cheverton, R.D.
Partner: UNT Libraries Government Documents Department

Diffractive jets

Description: The properties of particle clusters produced in the processes of single and double diffraction dissociation of protons at high energies are reviewed. These clusters appear as jets close to the direction of the dissociating protons and are referred to as diffractive or forward jets. (GHT)
Date: January 1, 1982
Creator: Goulianos, K.
Partner: UNT Libraries Government Documents Department

Heavy quarks in hadronic collisions

Description: It is suggested that the presence of c anti c-pairs on the 1 to 2% level in the hadron Fock state decomposition (intrinsic charm) gives a natural description of the ISR data for charm hadron production. The theoretical foundations of the intrinsic charm hypothesis together with its consequences for lepton- and hadron-induced reactions are discussed in some detail. There is no contradiction with the EMC data on F/sub 2//sup c/ provided the appropriate threshold dependence is taken into account.
Date: March 1, 1982
Creator: Brodsky, S.J. & Peterson, C.
Partner: UNT Libraries Government Documents Department

Scram discharge volume break studies accident sequence analysis

Description: This paper is a summary of a report describing the predicted response of Unit 1 at the Tennessee Valley Authority (TVA) Browns Ferry Nuclear Plant to a hypothetical small break loss of coolant accident (SBLOCA) outside of containment. The accident studied would be initiated by a break in the scram discharge volume (SDV) piping when it is pressurized to full reactor vessel pressure as a normal consequence of a reactor scram. If the scram could be reset, the scram outlet valves would close to isolate the SDV and the piping break from the reactor vessel. However, reset is possible only if the conditions that caused the scram have cleared; it has been assumed in this study that the scram signal remains in effect over a long period of time.
Date: January 1, 1982
Creator: Harrington, R.M. & Hodge, S.A.
Partner: UNT Libraries Government Documents Department

Production of the doubly strange H dibaryon

Description: There is much current interest in the spectroscopy of multiquark states. Predictions abound for the existence of baryonium (Q/sup 2/ anti Q/sup 2/) and six-quark dibaryon (Q/sup 6/) resonances, for instance. In the strangeness S = -2 sector of Q/sup 6/, the MIT bag model predicts a dibaryon H with quantum numbers J/sup ..pi../ = 0/sup +/, isospin I = 0, and mass M/sub H/ approx. = 2150 MeV approx. = 2M/sub ..lambda../ -80 MeV. The H has quark composition uuddss, so all quarks can occupy the ls state; it is unique in that it possesses no strong decay modes. The fact that the H mass is considerably below the ..lambda lambda.. or XiN thresholds precludes its interpretation as a deuteron-like object bound by conventional long-range meson exchange forces. The H has been searched for in the reaction p + p ..-->.. K/sup +/ + K/sup +/ + H by Carroll et al., with an upper limit of about 100 nb/sr/sup 2/ for two K/sup +/'s at +- 18/sup 0/ in the lab system. Some crude cross section estimates we have made for this process indicate much smaller cross sections than this limit. A more natural way to produce the H, in our view, is via the (K/sup -/, K/sup +/) reaction on a diproton in a nuclear target, i.e. K/sup -/ + (pp) ..-->.. K/sup +/ + H.
Date: January 1, 1982
Creator: Aerts, A.T. & Dover, C.B.
Partner: UNT Libraries Government Documents Department

Laser excitation

Description: Topics covered include: effects of parity non-conserving weak neutral interactions in atoms; spectroscopy of exotic atoms; and relativistic many-body dynamic theories. (GHT)
Date: January 1, 1982
Creator: Huang, K.N.
Partner: UNT Libraries Government Documents Department

Decision-making and radiological protection at Three Mile Island: response of the Department of Health, Education and Welfare

Description: Decision-making by decision-makers during the nuclear accident at Three Mile Island all had to do in some way, and impacted on the public health and safety, the health and safety of the workers, and emergency preparedness and health care. This paper reviews the activities of only one federal agency during the accident, the Department of Health, Education, and Welfare (HEW), and its effectiveness in its role as the leading institution responsible for protecting the public health during the first accident in a nuclear power plant designed for the commerical generation of electricity in the United States. My comments are limited to only three acts dealing with radiological health and protection: the struggle for power and assertion of leadership in response to possible health consequences of the accident; the decisions to evacuate the area during the radiological emergency; and the use of potassium iodide as a means of protecting the public and the workers from the hazards of exposure to radioactive iodine released to the environment.
Date: February 1, 1982
Creator: Fabrikant, J.I.
Partner: UNT Libraries Government Documents Department

Special features of the alpha induced d and polarized d breakup

Description: The alpha induced deuteron breakup reactions have been of interest since the three-nucleon, nucleon induced deuteron breakup, problem was addressed with tractable and predictive codes based on the Faddeev formalism and with appropriate nucleon-nucleon forces. In this paper we discuss a few special features of the alpha induced deuteron breakup reactions. Specifically, we point out the importance of the n-p tensor force in the predictions of the three-body model that fit the tensor analyzing powers better and the concommittent deterioration of the fit to the vector analyzing power caused by the inclusion of the tensor force. We suggest that there exists evidence for the /sup 1/S/sub 0/ n-p interaction, which is isospin forbidden, in both the cross section and spin observables data. Finally, we discuss certain characteristics of the p-..cap alpha.. quasifree-scattering and n-..cap alpha.. final-state-interaction processes.
Date: January 1, 1982
Creator: Lambert, J.M.; Treado, P.A.; Koike, Y.; Slaus, I.; Correll, F.D.; Brown, R.E. et al.
Partner: UNT Libraries Government Documents Department

Summary and results of the comprehensive environmental monitoring program at the INEL's Raft River geothermal site

Description: The Raft River Geothermal Program was designed to demonstrate that moderate temperature (approx. 150/sup 0/C) geothermal fluids could be used to generate electricity and provide an alternate energy source for direct-use applications. The environmental program was initiated soon after drilling began. The major elements of the monitoring program were continued during the construction and experimental testing of the 5-MW(e) power plant. The monitoring studies established pre-development baseline conditions of and assessed changes in the physical, biological, and human environment. The Physical Environmental Monitoring Program collected baseline data on geology, subsidence, seismicity, meteorology and air quality. The Biological Environmental Monitoring Program collected baseline data on the flora and fauna of the terrestrial ecosystem, studied raptor disturbances, and surveyed the aquatic communities of the Raft River. The Human Environmental Monitoring Program surveyed historic and archaeological sites, considered the socioeconomic environment, and documented incidences of fluorosis in the Raft River Valley. In addition to the environmental monitoring programs, research on biological direct applications using geothermal water was conducted at Raft River. Areas of research included biomass production of wetland and tree species, aquaculture, agricultural irrigation, and the use of wetlands as a treatment or pretreatment system for geothermal effluents.
Date: January 1, 1982
Creator: Mayes, R.A.; Thurow, T.L. & Cahn, L.S.
Partner: UNT Libraries Government Documents Department

Charmonium spectroscopy from inclusive photons in J/psi and psi' decays

Description: Comparing our precise measurements for the E1 transitions psi' ..-->.. ..gamma.. chi/sub J/ with theory has underscored the importance of including (i) spin and relativistic corrections, (ii) variations in the 2P and 1S wave function shapes resulting from corrections, and (iii) coupling to closed and open decay channels. Considering our best measured total widths, i.e., GAMMA/sub tot/(eta/sub c) and GAMMA/sub tot(chi/sub o/), it appears that higher order QCD corrections are important and large. Our measurements for the E1 rates chi/sub J/ ..-->.. ..gamma.. J/sub psi/ suffer from the large errors in GAMMA/sub tot/(chi/sub J/); our best value is for GAMMA(chi/sub o/ ..-->.. ..gamma.. J/psi), and the agreement here is slightly better with the corrected theories. Both the potential models and the lowest order QCD derived predictions are capable of consistency with our observed HFS, although QCD radiative corrections appear to go in the wrong direction (less splitting than measured). For the best measured M1 allowed pseudoscalar transition, J/psi ..-->.. ..gamma.. eta/sub c/, the naive potential model and dispersion theory predictions are roughly a factor of 2 large. Perhaps corrections to the M1 formula are important.
Date: March 1, 1982
Creator: Gaiser, J.E.
Partner: UNT Libraries Government Documents Department

Evaluation of SCC test methods for Inconel 600 in low temperature aqueous solutions

Description: In late 1981, widespread leakage was encountered in Alloy 600 steam-generator tubing at the Three Mile Island Unit 1 nuclear power plant. The phenomenon was identified as low-temperature intergranular stress-corrosion cracking (SCC) initiated from the inner surfaces of the tubes exposed to the primary coolant. A testing program was initiated to examine the material and environmental factors relevant to these failures, which were found to be associated with sensitization of the material and contamination of the coolant by air and sodium thiosulfate. The test solutions contained 1.3% boric acid with various additions of sulfur compounds and lithium hydroxide. Constant extension rate testing was used as the primary tool to examine environmental effects such as the inhibition of cracking by lithium hydroxide. Important effects of crack-initiation frequency on the specimen potential (and therefore crack velocity) are demonstrated.
Date: April 1, 1982
Creator: Newman, R.C.; Roberge, R. & Bandy, R.
Partner: UNT Libraries Government Documents Department

Cross sections at hadron colliders

Description: The predicted cross sections are given for new Z'/sup 0/ bosons, for the Drell-Yan continuum of ..mu../sup +/..mu../sup -/ pairs, for high p/sub T/ hadron jets, for high p/sub T/ single photons, and for the associated production of heavy quarks. These processes have been selected not to cover the most interesting physics, but to provide a representative selection of cross sections for which to compare various energies and luminosities.
Date: January 1, 1982
Creator: Paige, F. E.
Partner: UNT Libraries Government Documents Department

Structure of light. lambda. -hypernuclei and the (K/sup -/,. pi. /sup -/) reaction

Description: A brief description of the procedure and highlights of the calculations performed on a broad range of p-shell nuclei including ..lambda../sup 9/Be, ..lambda../sup 12/C, ..lambda../sup 13/C, ..lambda../sup 14/N and ..lambda../sup 16/O for which data exist and ..lambda../sup 10/B, ..lambda../sup 14/C, ..lambda../sup 15/N for which data do not exist are given. The mechanism for the (K/sup -/, ..pi../sup -/) reaction which generates the rich excitation spectra seen experimentally is briefly considered. The use of a relativistic DWBA formalism includes naturally the distortion in K/sup -/, ..pi../sup -/ wave functions and permits quantitatively reliable estiamtes of reaction cross-sections to be made. An essentially complete treatment of second-half p-shell nuclei with fixed ..lambda..N and NN potentials is possible because of the small size variations of these nuclei. In principle at least a three body ..lambda..NN force should be present, inducing an apparent nucleon-number dependence in an effective two body interaction. The emphasis is on extraction, from the hypernuclear spectrum and excitation probabilities, of details of the ..lambda..N interaction not otherwise obtainable experimentally. (WHK)
Date: January 1, 1982
Creator: Kahana, S.
Partner: UNT Libraries Government Documents Department