Inorganic analysis of solid, liquid and gaseous samples from the Paraho Semiworks Retort was completed using a multitechnique approach. The data were statistically analyzed to determine both the precision of each method and to see how closely the various techniques compared. The data were also used to determine the redistribution of 31 trace and major elements in the various effluents, including the offgas for the Paraho Retort operating in the direct mode. The computed mass balances show that approximately 1% or greater fractions of the As, Co, Hg, N, Ni, S and Se are released during retorting and redistributed to the product shale oil, retort water or product offgas. The fraction for these seven elements ranged from almost 1% for Co and Ni to 50 to 60% for Hg and N. Approximately 20% of the S and 5% of the As and Se are released. The mass balance redistribution during retorting for Al, Fe, Mg, V and Zn was observed to be no greater than .05%. These redistribution figures are generally in agreement with previous mass balance studies made for a limited number of elements on laboratory or smaller scale pilot retorts. 7 tables.

Discussion is presented to substantiate, clarify and reinterpret some of the results of the above authors for the existence and origin of tempered martensite embrittlement (TME) in relation to retained austenite, with reference to the experimental steels worked at LBL for the past several years.

The conference included 10 papers, one of which appeared previously under conference number Conf: 770675-1. Separate abstracts were prepared for the remaining nine papers. (JFP)

None

The mechanical structure of the LLL/GA Mirror Hybrid Reactor vessel is briefly discussed. Functional requirements and over-all design considerations leading to selection of a post-tensioned concrete reactor vessel and a modular blanket approach are indicated. Module design life of four years, module replacement, capability and remote fueling are provided by the chosen structural design. (RME)

For microstructures of the ''cellular'' type (isotropic growth from a distribution of nuclei which form simultaneously), it is possible to construct an efficient code which will completely analyze the microstructure in three dimensions. Such a computer code for creating and storing the connected graph was constructed. (DLC)

A regional transport model of atmospheric sulfates was developed. This quasi-Lagrangian three-dimensional grid numerical model uses a detailed SO/sub 2/ emission inventory of major anthropogenic sources in the eastern U.S. region and observed meteorological data during an episode as inputs. The model accounts for advective transport and turbulent diffusion of the pollutants. The chemical transformation of SO/sub 2/ and SO/sub 4//sup 2 -/ and the deposition of the species at the earth's surface are assumed to be linear processes at specified constant rates. The numerical model can predict the daily average concentrations of SO/sub 2/ and SO/sub 4//sup 2 -/ at all receptor locations in the grid region during the episode. Because of the spatial resolution of the grid, this model is particularly suited to investigate the effect of tall stacks in reducing the ambient concentration levels of sulfur pollutants. The formulations and assumptions of the regional sulfate transport model are presented. The model inputs and results are discussed. Isopleths of predicted SO/sub 2/ and SO/sub 4//sup 2 -/ concentrations are compared with the observed ground level values.

Laser-induced fluorescence line narrowing was applied to investigate the local fields and interactions of paramagnetic ions in oxide glasses. Studies included the site dependence of energy levels, radiative and nonradiative transition probabilities, homogeneous line broadening, and ion--ion energy transfer of rare earth ions. These results and the experimental techniques are reviewed briefly; the use of paramagnetic ions other than the rare earths is also considered. Recently, laser-excited fluorescence spectroscopy was used to investigate modifications in the local structure of lithium borate glass caused by compositional changes and phase separation and the site dependence of nonradiative relaxation of paramagnetic ions by multiphonon processes. These results and their implications are discussed. 6 figures.

Some general approaches to remote blanket change and servicing operations are briefly outlined for the LLL Field Reversed Mirror and Tandem Mirror Fusion reactors. Remote servicing system design requirements are briefly discussed. (RME)

A separate abstract was prepared for sixteen papers presented at the conference. Abstracts of three papers presented orally at the conference are included in the proceedings. Three papers have been abstracted previously for the data base. For abstracts of these see CONF-761055 in the Report Number Index. (RCK)

Measurement of d-d neutron yields incidentally produced in multi-megawatt neutral deuterium beam injectors used in magnetic fusion experiments is discussed. Unavoidable neutron production in the neutralizer, ion-beam dump, neutral beam calorimeter and beam collimator sections of an injector is measured to provide data for the design of radiation shielding and beam diagnostic experiments. At 120 kV, 10A, 0.5s pulsed injector operation, neutron yields plateau at an instantaneous yield from the calorimeter of 10/sup 11/ n/s. Beam diagnostic applications of neutron measurements are adjustment of beam source conditions to maximize the full-energy fraction of the neutral beam on target, and measurement of density in the neutralizer. (RME)

A computer code was constructed for the efficient dynamic simulation of precipitation and coarsening processes in large atom arrays. Some initial results are illustrated. (DLC)

The laser resonance absorption technique has been used to determine the relaxation rate of electronically excited neodymium vapor during its expansion into vacuum. Significant increases of population into ground and 1128 cm/sup -1/ levels were found. Analysis shows that interaction between excited metastable atoms and electrons are much more important for relaxation than atom-atom collisions. The final population of neodymium appears to be frozen at a temperature lower than the surface temperature of melt.

Tests were conducted on the compatibility of liquid lithium with various gas atmospheres and concretes. Fire extinguishing powders have been tested to determine their effectiveness in extinguishing well established lithium fires. Lithium quantities up 15 kg at temperatures up to 870/sup 0/C were tested to relate to temperatures encountered in fusion reactor designs. (MOW)

None

A stack of nuclear emulsions was irradiated by 400 Gev/c protons at FNAL. In this work a search for the short-lived particles has been carried out by a new method that allowed to detect secondary events (including the narrow ones) on short distances from the parent star. By measuring angles, momenta and ionizations of the secondary particles they could identify electrons and distinguish them from hadrons. In search for the decays of charged of particles on n{sub s} {ge} 3 charged relativistic particles or of neutral ones on two or four charged particles the environments of the 1120 stars has been looked through up to 1 mm from the center of parent star inside of cone 0{sub L} {le} 4{sup o}. By this method 21 secondary events of the type O + O + n{sub s} have been selected. After excluding background due to the nuclear and electro-magnetic interactions 9 events remained (from which 4 of the type O + O + 2n, 2 of the type O + O + 3p and 4 of the type O + O + 4n). They consider them as decays of the new short-lived particles. All these 9 events are characterized by jet …

Missing mass spectra were obtained by measuring recoil protons from the reaction p + p {yields} p + X in the Jacobian peak region at |t| = 0.175 and 0.25 (GeV/c){sup 2}. The incident momentum range from 9 to 300 GeV/c was covered continuously by taking data during the acceleration ramp of the Fermi National Accelerator Laboratory machine. Our missing mass range varied from 1.5 to 8.5 GeV and we observed the well known N*(1688) and N*(2l90) but no significant structures at higher mass.

The authors have measured the asymmetry in the cross section for the reaction {gamma}p {yields} {pi}{sup +}n between the two stages of polarization of the initial proton normal to the plane of scattering. The initial laboratory photon energies, k, were 5 GeV and 16 GeV, and the regions of momentum transfer, t, covered were 0.14 {le} {radical}-t {le} 1.01 GeV/c and 0.14 {le} {radical}-t {le} 0.78 GeV/c respectively. A butanol polarized target was used with the SLAC 20 GeV/c magnetic spectrometer. The data show a sizeable asymmetry at both 5 GeV and 16 GeV. The 16 GeV data peak at {radical}-t {approx} 0.30 GeV/c with an asymmetry of about -0.70, and the 5 GeV data pak at {radical}-t {approx} 0.80 GeV/c with an asymmetry of about -0.70. The direction of our normal to the scattering plane is along (photon in) x (pion out).

The authors have observed two events induced by high energy (> 150 GeV) neutrinos in which two highly penetrating particles (muons) of opposite sign are produced. Both events have a large inelasticity and a massive {mu}-hadron system.

The reaction {pi}{sup -}p {yields} {pi}{sup -}{pi}{sup +}{pi}{sup -} p at 100 GeV/c has been analyzed in terms of effective mass and rapidity variables. It is found to be dominated by two well-separated processes, i.e. the diffractive dissociation of the pion and that of the proton. the Diffractive nature of these processes is confirmed by the weak energy dependence of the cross section for the reaction, which falls like p{sub LAB}{sup -0.25} between 5 and 200 GeV/c. A small class of events is found having the properties expected for 'double Pomeron exchange', {pi}{sup -}p {yields} {pi}{sup -} ({pi}{sup -}{pi}{sup +})P. The cross section for such events is estimated to be 40 {+-} 20 {micro}b.

Recent the orbital symmetry rules have been shown to apply to hetero-atom systems such as nitrone thermal cycloaddition reactions and the thermal and photochemical aziridine ring cleavage at the C-C bond. The concerted photocyclization is disrotatory and the reverse thermal cleavage is conrotatory in these molecules with four {pi} electrons. In contrast to the azomethine ylide-aziridine system, the stereochemistry of the nitrone photocyclization to oxaziridine can only be observed on carbon and nitrogen atoms because the oxygen atom has lone pair electrons instead of substituents. For the reverse thermal ring opening of oxaziridine to the nitrone, the two possible conrotatory motions of C-O bond cleavage should result in a mixture of the cis and trans-isomers of the nitrone, in contrast to the photoclosure which should be stereospecific.

The production of high energy (multi-GeV) proton beams by an electron ring accelerator is considered. Both the final energy and intensity of the proton beam depend on the choice of parameters for the electron ring. Possible sets of parameters, consistent with all the known requirements of ring stability, and which optimize the energy and (or) the intensity of the proton beam, are presented.

In a stack of nuclear emulsion irradiated by 200 Gev/c {pi}{sup -}-mesons at FNAL, we have made a search for new short-lived particles by tracing all secondary tracks from the star in a cone of 0 < 0,1 rad up to the distance of 1 mm. The sample of stars consisted of 350 {pi}{sup -} N- and 250 {pi}{sup -} A-interactions. They have found one peculiar event. Among {pi}{sup -} A-interactions there is star of type 21 + 6 + 23 p in which one secondary prong (0{sub L} = 4,6{sup o}) gives at the distance 42 {micro} from the center of the star very narrow jet of the type 0 + 0 + 5p. Measurements of the angles, momenta and ionizations of the particles from this jet allowed to identify two particles as electrons. A total momentum of all five particles is about 9 Gev/c. Probability to observe such narrow jet due to an ordinary nuclear interaction on nucleon or coherent reaction on nucleus with production of five charged particles (including e{sup +}e{sup -} pair) at 10-20 Gev/c is less than 0,5.10{sup -6}, and by this reason they treat it as a decay of new short-lived particle. Estimation of …

We report properties of single-wire proportional chambers and multiple-wire ionization chambers filled with liquid xenon. Proportional multiplication is seen for anode fields > 10{sup 6} volts/cm (anode-cathode voltage> 1 kV for a 3.5-{micro}-diam anode wire). The efficiency for detecting ionizing radiation is {approx} 100%. The time resolution of the chambers is {+-} 10{sup -7} sec. We attained a spatial resolution of {+-} 15 {micro} with a multiwire ionization chamber, considerably better than that of any other real-time particle detector.