An extension of the methods of Lindhard et at. was used to calculate the total displacement function n/sub ij/(E) for a number of diatomic materials, where n/sub ij/(E) is defined to be the average number of atoms of type j which are displaced from their sites in a displacement cascade initiated by a PKA of type i and energy E. From the n/sub ij/(E) one can calculate the fraction n/sub ij/(E) of the displacements produced by a type i PKA with energy E which are of type j. Values of the n/sub ij/ for MgO, CaO, Al/sub 2/O/sub 3/, and TaO are presented. It is shown that for diatomic materials with mass ratios reasonably near one (e.g., MgO, Al/sub 2/O/sub 3/) and equal displacement thresholds for the two species the n/sub ij/ become independent of the PKA type i at energies only a few times threshold. However, for larger mass ratios the n/sub ij/ do not become independent of i until much larger, energies are reached - e.g. > 10/sup 5/ eV for TaO. In addition, it is found that the n/sub ij/ depend sensitively on the displacement thresholds, with very dramatic charges occuring when the two thresholds become significantly …

This report was created to provide background information and discuss the pros and cons of creating a subminimum wage for underage workers.

Thirty-one neutron cross sections have been extended to 44 MeV for dosimetry applications at high energy accelerator sources. Integral testing in Be(d,n) fields at E/sub d/ = 14, 16, and 40 MeV shows that 22 cross sections are accurate to within +- 10%. An example of routine flux-spectral unfolding and damage analysis is shown with an error analysis. Cross section needs are discussed.

One hundred MAD-1021 slapper test devices were built to fill the reimbursable order CM8-2909G-1 for W.F. Hemsing of Los Alamos Scientific Laboratory. Physical vapor deposition (PVD) techniques were successfully used to prepare the slapper foil assemblies. The 0. 381 mm square bridge foils were of aluminium 3 micrometers thick. Copper solder pads of 1.0 to 1.5 micrometer thickness were also applied using PVD techniques. A total of 120 were fabricated and submitted to the fabrication group for assembly. The 100 completed slapper units were fabricated with 0.025 mm thick Kapton flyers. Barrels for these slapper units were 0.38 mm long with a 0.42 mm diameter.