The objective of this program is the experimental study of interactions of low energy, highly charged ions with other atomic species. The Cornell superconducting solenoid, cryogenic electron beam ion source CEBIS designed and built in our laboratory is the major piece of apparatus used in these investigations. This progress report describes the work accomplished during the period April 16, 1994 and August 1, 1994. This includes both finished experiments and preparatory work for planned future experiments using the source. During this time, we have completed measurements of the angular distributions and energy gains in Ar{sup q+} (11{le}q{le}14) on Ar collisions at 72 qeV laboratory energy. In particular, energy gain spectra at different laboratory scattering angles were obtained for Ar({sup q-1}){sup +} projectiles, i.e. projectiles whose final charge state had decreased by one unit. The experimental technique used, and the method of analysis are described elsewhere. The raw spectra are similar to those observed for Ar{sup 8+} and Ar{sup l0+} on Ar at comparable energies, as well as those described in the last progress report for Ar{sup l2+} on Ar.

This report documents the chemical compatibility of waste types within tanks 241-C-106, 241-AY-101, and 241-AY-102. This information was compiled to facilitate the transfer of tank C-106 waste to tank AY-102 utilizing supernatant from AY-101 as the sluicing medium. This document justifies that no chemical compatibility safety issues currently understood, or theorized from thermodynamic modeling, will result from the intended sluice transfer operation.

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Among the results of the Uruguay Round (UR) of Multilateral Trade Negotiations conducted under the General Agreement on Tariffs and Trade (GATT) are institutions to administer the trade obligations contained in the UR agreements and to provide venues for further negotiation and discussion of these and possibly future trade agreements. The two primary institutional instruments are the World Trade Organization (WTO) and the dispute settlement procedures set forth in the Dispute Settlement Understanding (DSU).