1. Idaho National Laboratory and Center for Space Nuclear Research, 1765 Yellowstone Highway MS 3860, Idaho Falls, Idaho 83415-3860
2. University of Utah, Utah Nuclear Engineering Program/Department of Chemical Engineering 50 South Central Campus Drive, Room 3290, Salt Lake City, Utah 84112-9203
3. Idaho National Laboratory, Reactor Physics Analysis and Design, P.O. Box 1625, MS 3860 Idaho Falls, Idaho 83415-3860