The DT fusion neutron irradiation of eleven BNL-LAST superconductor wires, six NRL GeO/sub 2/ crystals, two YAG, two Spinel and two Al/sub 2/O/sub 3/ crystals for LASL and four LASL high purity single crystals of MgO, YAG, Spinel and Al/sub 2/O/sub 3/ is described. The sample position, beam-on time, and neutron dose record are given. The maximum fluence on any sample was 1.51 x 10/sup 16/ neutrons/cm/sup 2/.

Because groundwater movement can have important effects on buried nuclear wastes, hydrologists need to know if future climatic changes will influence the accuracy of groundwater flow calculations. Groundwater recharge (and therefore groundwater flow) depends on surface water balance. (Surface water balance equals precipitation less losses to evaporation, runoff, and storage.) To develop input data for modeling future climatic effects, we have made the following simplifying assumptions: (1) Climate (and therefore water balance) will behave in the future very much as it has in the past. (2) Groundwater recharge responds linearly to precipitation. (3) Future long-term climatic changes can be classified into groups or regimes that are similar to those of the past. Our current research is aimed at providing input data to the Waste Management Program's site suitability task. 16 figures, 1 table.

An elementary description is given of the basic vocabulary and concepts associated with finite difference modeling. The material discussed is biased toward the types of large computer programs used at the Lawrence Livermore Laboratory. Particular attention is focused on truncation error and how it can be affected by zoning patterns. The principle of convergence is discussed, and convergence as a tool for improving calculational accuracy and efficiency is emphasized.

Each paper in the volume has been separately abstracted and indexed. (DG)

Specifications are reported which were developed for several epoxy resins and hardeners used in filament winding. The specifications are concise, aimed at testing convenience, and contain the minimum number of tests necessary to define the material.

The DT fusion neutron irradiation of eleven BNL-LASL superconductor wires, six LASL Spinel, Al/sub 2/O/sub 3/, and YAG crystals (two of each), six NRL five 9's crystalline, tetragonal GeO/sub 2/ samples and four LASL-IIT high purity single crystals (MgO, YAG, Spinel and Al/sub 2/O/sub 3/) is described. The sample position, beam-on time and neutron dose record are given. The maximum neutron fluence on any sample was 1.87 x 10/sup 16/ neutrons/cm/sup 2/.

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Some recently discovered regularities in the spectra of heavy elements which are also applicable to the analysis of the spectra of lighter atoms are described. It is pointed out that stepwise resonant multiphoton methods are irreplaceable tools in the study of high lying states in a complex atomic system. Systematic applications of these methods has permitted regularities to be observed which also hold for the lighter elements. It is noted that greatly increased understanding of the excited state structure of heavy atoms is not possible. 8 references. (JFP)

The space charge detuning of a dc beam due to electrons trapped is shown to be essentially energy independent. This leads to a curvature in the ..nu.. vs p relation. Left uncorrected, this would result in a "brick-wall" instability. It is shown that the strength of octupole field required to correct the curvature increases as the third power of the energy. Thus, large octupole correction coils are needed. The possibility of using stronger sextupole corrections to reduce the octupole requirement is suggested. However, this would mean that the working line would not shrink with energy, and ISABELLE would be required to operate with a tune spread greater than or equal to 0.02 even at 400 GeV.