1. Los Alamos National Laboratory, Weapons Systems Engineering P.O. Box 1663, Los Alamos, New Mexico 87545
2. Georgia Institute of Technology Nuclear and Radiological Engineering and Medical Physics Department 900 Atlantic Drive, Atlanta, Georgia 30332
3. Los Alamos National Laboratory, Stockpile Complex and Modeling Group P.O. Box 1663, Los Alamos, New Mexico 87545
4. North Carolina State University, Department of Nuclear Engineering Raleigh, North Carolina 27695