This journal contains 7 articles pertaining to astrophysics. The first article is an overview of the other 6 articles and also a tribute to Jim Wilson and his work in the fields of general relativity and numerical astrophysics. The six articles are on the following subjects: (1) computer simulations of black hole accretion; (2) calculations on the collapse of the iron core of a massive star; (3) stellar-collapse models which reveal a possible site for nucleosynthesis of elements heavier than iron; (4) modeling sources for gravitational radiation; (5) the development of a computer program for finite-difference mesh calculations and its applications to astrophysics; (6) the existence of neutrinos with nonzero rest mass are used to explain the universe. Abstracts of each of the articles were prepared separately. (SC)

After a brief report on revised Hiroshima and Nagasaki dose estimates, the issue concentrates on three subjects: predicting integrated circuit performance; DYNA3D, computerized modeling of material deformation; and oil and gas resources, predicting the unpredictable. (GHT)

Activities at Lawrence Livermore Laboratory are reported for the areas of: shock wave studies, modeling the giant planets; modeling of solid state materials for solar cells; and flame quenching in internal combustion engines. (GHT)

Separate abstracts were prepared for each of the three included sectons. (MOW)

Research programs at LLNL are reviewed. This issue discusses validation of the pulsed-power design for FXR, the NOVA plasma shutter, thermal control of the MFTF superconducting magnet, a low-energy x-ray spectrometer for pulsed-source diagnostics, micromachining, the electronics engineer's design station, and brazing with a laser microtorch. (GHT)

This issue of Energy and Technology Review contains: Neutron Penumbral Imaging of Laser-Fusion Targets--using our new penumbral-imaging diagnostic, we have obtained the first images that can be used to measure directly the deuterium-tritium burn region in laser-driven fusion targets; Computed Tomography for Nondestructive Evaluation--various computed tomography systems and computational techniques are used in nondestructive evaluation; Three-Dimensional Image Analysis for Studying Nuclear Chromatin Structure--we have developed an optic-electronic system for acquiring cross-sectional views of cell nuclei, and computer codes to analyze these images and reconstruct the three-dimensional structures they represent; Imaging in the Nuclear Test Program--advanced techniques produce images of unprecedented detail and resolution from Nevada Test Site data; and Computational X-Ray Holography--visible-light experiments and numerically simulated holograms test our ideas about an x-ray microscope for biological research.

Individual abstracts were prepared for the three items in this issue. These include age estimation of the universe, measurement of equations of state for tantalum, and inertial confinement fusion. (GHT)

This review of Lawrence Livermore National Laboratory's research programs includes: Measuring the Performance of Supercomputers; Microwave Tokamak Experiment; and Gas Cooling of Laser Disks. (JF)

Each of the three main sections was processed separately for ERA, EAPA, and the Energy Data Base.