A description is given of the FFTF Document Control and Information Retrieval System. The system utilizes a mini-computer along with various microfilm equipment and is designed to accommodate an anticipated 50 million pages of text and 750,000 drawings. The system is simple, uncluttered, eliminates duplication, and provides quick retrievability of documents for all technical and administrative personnel.

A review is given of electron-correlation satellites in ion and atom emission spectra. The topics developed are the early history using Mn/sup 2 +/ as an example, shake-up satellites and initial-state-configuration interaction (ISCI), direct observation of ISCI by photoemission: the ns/sup 2/ case, and autoionization in Ba and other np/sup 6/ (n + 1)s/sup 2/ cases. (JFP)

Data from two experiments are presented to illustrate the use of laser optical microdiffraction in metallurgical analysis: ordered Mg/sub 3/Cd and spinodal Au--Ni alloys. (DLC)

Switching and power supply problems of neutral atom beam injection systems and superconducting magnets are briefly discussed. Typical power supplies for both systems are described.

Optical model elastic and DWBA transfer angular distributions are studied by isolating their positive and negative deflection angle components. The local angular momentum of these amplitudes allows isolation of the regions of angular momentum space that are contributing to the different angular regions of the cross sections. This information can be employed to isolate features of the cross sections arising from orbiting, reflection, Coulomb rainbows, nuclear rainbows, Regge poles, etc. Specifically it is shown that the inner contribution to typical heavy-ion forward-angle elastic scattering is in the shadow of the nuclear rainbow and further that transfer angular distributions contain separate inner and outer contributions. Before discussing results, the idea of a ''local momentum'' is introduced and the decomposition of angular distributions into their positive and negative deflection angle components is briefly described. Results are shown for the reaction /sup 60/Ni(/sup 13/C,/sup 12/C)/sup 61/Ni at E = 60.8 MeV and for the elastic scattering of /sup 13/C on /sup 60/Ni at the same incident energy. (SDF)

The elements of a Nd: Glass laser chain as it is constructed for fusion experiments are described. A brief overview of the ARGUS and SHIVA systems employing Nd lasers is given. (MOW)

Direct lattice imaging by transmission electron microscopy and optical diffraction were combined to study the stacking sequences in fine-grained (<1 ..mu..m), hot-pressed SiC. Stacking periodicities of 5, 6, 7, 8, 24, 36, and 48 composite Si-C layers were recognized. (DLC)

An apparatus was developed to make simultaneous measurements of enthalpy, temperature, volume, and electrical resistivity on metals in the temperature range from 2500 to 8000/sup 0/K and at pressures up to 1 GPa. Cylindrical samples are resistively heated by a 10-50 ..mu..s current pulse in a constant pressure inert gas environment. Data for the refractory transition metals Nb, Mo, Ta, and W are presented.

This report introduces the results of an engineering study incorporating a computer program to determine the transient and steady-state voltage and current wave shapes for a 12-pulse rectifier system. Generally, rectifier engineering studies are completed by making simplified assumptions and neglecting many circuit parameters. The studies incorporate the 3-phase AC parameters including nonlinear source or generator, 3-winding transformer impedances, and shunt and series capacitors. It includes firing angle control, and DC filter circuits with inductive loads.

This scenario proposes establishment of test and engineering facilities to (1) investigate the technological problems associated with laser fusion, (2) demonstrate fissile fuel production, and (3) demonstrate competitive electrical power production. Such facilities would be major milestones along the road to a laser-fusion power economy. The relevant engineering and economic aspects of each of these research and development facilities are discussed. Pellet design and gain predictions corresponding to the most promising laser systems are presented for each plant. The results show that laser fusion has the potential to make a significant contribution to our energy needs. Beginning in the early 1990's, this new technology could be used to produce fissile fuel, and after the turn of the century it could be used to generate electrical power.

Although firm requirements have not yet been established in the United States for inservice inspection of LMFBR's, some initial development work on potentially applicable nondestructive testing methods has been conducted by the Hanford Engineering Development Laboratory. The paper contains a synopsis of investigations conducted in each of the following areas: ultrasonic examination of austenitic stainless steel welds, electro-thermal NDT method for stainless steel components, eddy current methods for in-situ examination of heat exchanger tubes, and under-sodium viewing and ranging. Development activities and experimental results obtained to date in each of these areas are highlighted, along with comments on potential applicability for inservice inspection of LMFBR's.

The Kalman filtering method is extended to two-dimensions. The resulting computational load is found to be excessive. The reduced update Kalman filter is derived. It is shown to be optimum in that it minimizes the post update mean square error (mse) under the constraint of updating only the nearby previously processed neighbors. The resulting filter is a stable, nonsymmetric half-plane recursive filter. This method is proposed as a solution of the 2-D filter design problem for stochastic dynamical models.

Preliminary analysis of new data on radiative decays of psi(3095) and psi(3684) confirms the existence of chi(3410) and of further structure in the 3.45 to 3.60 GeV region. The monochromatic photon from the transition psi(3684) ..-->.. ..gamma..chi(3410) is observed in the inclusive photon spectrum from psi(3684); the branching ratio for this decay is 7 +- 3 percent. No evidence was found for a state near 2.8 GeV reached in psi(3095) decays.

The effects of D. C. electric fields on high lying Rydberg and valence states in atomic uranium have been studied. Results of measurements of Stark shifts, lifetime lengthening via l-mixing, critical fields for ionization, barrier tunneling, and the appearance of zero-field parity forbidden transitions are presented for atomic uranium along with the observation of field induced autoionization of valence states. 3 figs. (GHT)

Experiments were conducted to evaluate the behavior of short-range-order Ni/sub 4/Mo (produced by quenching from above the critical ordering temperature) in an irradiation environment. A 1-MeV electron microscope was used, with the temperature of the irradiated area being approximately 100/sup 0/C. Results indicated that the short-range order is not destroyed by electron irradiation up to 5 dpa, although domain coarsening may occur. (DLC)

A review of the Brookhaven National Laboratory (BNL) minimum activity graphite blanket designs is made. Three designs are identified and discussed in the context of an experimental power reactor (EPR) and commercial power reactor. Basically, the three designs employ a thick graphite screen (typically 30 cm or greater, depending on type as well as application-experimental power reactor or commercial reactor). Bremsstrahlung energy is deposited on the graphite surface and re-radiated away as thermal radiation. Fast neutrons are slowed down in the graphite, depositing most of their energy. This energy is then either radiated to a secondary blanket with coolant tubes, as in types A and B, or is removed by intermittent direct gas cooling (type C). In types A and B, radiation damage to the structural material of the coolant tubes in the secondary blanket is reduced by one or two orders of magnitude by the graphite screen, while in type C, the blanket is only cooled when the reactor is shut down, so that coolant cannot quench the plasma, whatever the degree of radiation damage.

A description is given of TREAT F-series tests which are being conducted to provide data on fuel motion in an LMFBR during a hypothetical loss-of-flow accident. Fuel and fuel boundary conditions in an LMFBR subassembly following sodium voiding and dryout under loss-of-flow conditions are simulated in each F-series test. Simulation is achieved with a single fuel element surrounded by an annular nuclear heated wall in a dry (no sodium) test capsule. Results are presented and discussed.

The First ERDA Statistical Symposium was organized to provide a means for communication among ERDA statisticians, and the sixteen papers presented at the meeting are given. Topics include techniques of numerical analysis used for accelerators, nuclear reactors, skewness and kurtosis statistics, radiochemical spectral analysis, quality control, and other statistics problems. Nine of the papers were previously announced in Nuclear Science Abstracts (NSA), while the remaining seven were abstracted for ERDA Energy Research Abstracts (ERA) and INIS Atomindex. (PMA)

In the last few years it has become clear that the effect of the shifting centers of mass (recoil effect) have to be properly incorporated into the theory of single nucleon transfer between nuclei, especially at higher energies. A re-examination of the present theory reveals, however, that there remains a serious problem, which is associated with the so-called spurious center of mass motion in nuclear structure models. In principle the present calculations that purport to treat recoil exactly, nonetheless ought to be corrected for the above defect in the nuclear wave functions that they employ. An exact resolution of the long outstanding problem of spurious center of mass motion in nuclear models has not been obtained, but an approximate procedure for handling the correction to reaction calculations arising from this source has been formulated. The correction has two components. There is a scalar one which corresponds merely to a scaling of the radial coordinate and applies to all reactions. There is also a vector correction which can be cast into a form in which a particle picked up or removed from a definite shell model state appears to occupy a distribution of states having the same parity but differing in …

Experiments on the reaction /sup 60/Ni(/sup 18/O,/sup 16/O)/sup 62/Ni revealed an unexpectedly large forward cross section for production of the ground state, in contrast with an expected grazing peaked distribution. This has most recently been interpreted in terms of a surface transparent optical potential. In the inverse experiment, it is known that /sup 18/O is produced in its 2/sup +/ state with larger cross section than the ground state. This suggests that the above ground state reaction can also be produced with appreciable probability through the excitation of /sup 18/O in the incident channel, with a subsequent transfer of two neutrons to form the ground state of /sup 62/Ni. It is found that by including this process together with the direct transfer, the experimental data can be accounted for. The parameters of the optical potential employed are chosen so as to reproduce both the elastic and inelastic cross sections, and are of the normal strong absorbing type with no surface transparency. It is concluded that the projectile excitation is the physical process involved in the large forward cross section. In addition the interference of the direct and indirect processes can give rise to a minimum beyond the grazing peak followed …

Calculations of backgrounds for cosmic ray candidates for new particles in emulsions are summarized. Even if only the strongest cosmic ray candidates are accepted as genuine, the implication is that their production cross sections would be relatively large at accelerator energies (greater than or equal to 1..mu..b) and that decay modes with ..pi../sup 0/ appear to be prominent. Current accelerator upper bounds on sigma x B/sub K pi/ for production of hadrons with M greater than 2 GeV and the relation between these bounds and the cosmic ray events are discussed.

The microstructure of an Fe-Cr-Co-Nb-Al permanent magnet is described. An effect of a thermomagnetic treatment on the microstructures is also discussed since a thermomagnetic treatment plays an important role in producing good magnetic properties in this alloy. Investigation results show that the magnetic properties of the alloy do not depend on the crystal orientation. This is confirmed by the measurement of the magnetic properties of Fe-30 wt percent Cr-23 wt percent Co single crystals.

The presence of diffusion processes in heavy ion reactions is argued on a theoretical ground by pointing out the limitation of a Lagrangian approach to the time-dependent processes. The master equation is used to describe the diffusion of the probability distribution along the mass asymmetry coordinate. Calculations of the probability distributions as a function of time have been performed for many heavy ion reactions. Experimental evidence of diffusion is shown to exist in the charge and angular distributions associated with a large number of heavy ion reactions. It is shown that the deep inelastic processes occurring in lighter systems, and quasi fission observed for heavier systems can be interpreted in terms of the very same mechanism. A comparison between the theoretical calculations and the experimental data is shown.

An environmental monitor is defined as a system that estimates environmental pollutant levels throughout an environmental region for all times in a specified time interval, using measurement data taken only at discrete locations and at discrete times. Two distinct monitoring problems are posed, the first for environmental feedback control applications, the second for surveillance or pollutant limit violation detection. The main results are for the special case of infrequent sampling. If the required measurements are spaced far enough apart in time, certain terms in the estimation error equations dominate the asymptotic response yielding mathematically elegant solutions for infrequent sampling monitors.