TIle work described in this report was presented at the Advanced Research Workshop, "Environmental Aspects of Converting CW Facilities to Peaceful Purposes and Derivative Technologies in Modeling, Medicine and Monitoring." TIle ARW was jointly sponsored by NATO and the International Science and Technology Center (lSTC), Moscow. The workshop was held at the AC Laboratory, Spiez, Switzerland, in April, 1999. The editors and directors would like to thank the NATO Science Committee and the ISTC for their generous support and encouragement in making this event possible. We wish to give a special to Dr. Bernhard Brunner and his colleagues at the AC Laboratory, Spiez, for their more than generous support. In addition, we would like to thank tlle following individuals for their contributions to a fruitful discussion: Mr. Armando Alcaraz (LLNL), Dr. Aniello Amendolo (lIASA), , Mr. Randall Beatty (ISTC), Mr. Timothy Blades (ECBC), Dr. R. V. Borovic (RCTHRB), Dr. K Brainina (SRlOCT), Dr. Bernhard Brunner, (AC Lab.), Dr. T. Chvetsova-Chilovskaya (SRlOCT), Mr. John Compton (ISTC), Dr. Jolm F. Cooper (LLNL), Dr. William Cullen (U.Brit.Col.), Dr. Evgeny Fokin (SRlOCT), Dr. Alfred Frey (AC Lab.), Dr. V. G. Gorsky (SRlOCT), Dr. Jiri Kadlcak (MTIP), Ms. Larisa Konnilkina (ISTC), Dr. V. K. Kurochkin (SRlOCT), Dr. Ronald F. Lelunan (ISTC, LLNL), Dr. Y. N. Mamontov (SRlOCT), Dr. V. Mejevov (TRINITI), Dr. I. V. Moskalenko (KRC), Dr. Dieter Nietzold (lSTC), Dr. Daan Noort (TNO), Mr. Shinichiro Ogura (ISTC), Dr. V. S Poliakov (SRlOCT), Dr. A. Putilov (Min.
