e o ca e e oe e e oe sa rf . ? . e ILLUSTRATIONS. C7 e a e e e es « » e e e e « e e e e e e e ee ° 2 eo Vv e eo e e oe » a e e e °e ee. 6.6 °° e e e e a e e ry eo e e vi oe e e e e * e e eo e °° ¢ e e e e ® e e ¢ 1 CHAPTER 2 CHAPTER 3 e INTRODUCTION CASTILE TESTS .....e..e.se2.1 Bravo o a 2.2 Romeo oe e + © © © © : 2.3 Koon. oo «ee © © © © 8 2.4 Union o ¢« eo «© © © @ 2.5 Yankee. e oe e . . e oe 2.6 Nectar. e e ° e e e " . oes 5 6 9 © © ew ew el el ele lel elle . -e@ @ © © © © © © © eo 8 © © © © © 8 © © © 8 8 @ 12 . e e eo « e * e es e . °° e 12 e e e e e eo e eo o eo * e J 15 WORLD-WIDE FALLOUT .. 1... 1 eee eee eo eo eee IV 3. 1 3.2 Castle Total. . © e iv e 1 e ° CHAPTER °. Sa e ABSTRACT oe e eo e * s e * e e se e e e e * ACKNGWIEDGEMENTS o © «© © © © © © © © © Wotals for Individual Tests... 1... 8 @ nD 19 19! CHAPTER 3.3 [Comparison With Total Beta Yield, soe ewe 3.) Metedrological Interpretation... ....4-. 3.5 YWaximumActivity at Individual Stations ott Bh SPECIAL OBSERVATIONS .....0 2022 eee ee ee 3B APPENDIX A MAPS OF DAILY FALLOUT. 2 oe. eee ewe ee eee BV ACKNOWLEDGEMENTS The work reparted on here was performed under the direction of Dr. Lester Machta, Chief, Special Projects Section, Services Division, U, S. Weather Bureau. was established by Operations Office, Director, and that Daniel E. Lynch of coordinator of the Scientific The monitoring vrogram the Health and Safety Laboratory, New York Atomic Energy Commission, Merril Eisenbud, office provided the radiological data, Mr. the Health and Safety Laboratory served as program. , Many helpful suggestions were received from colleagues in the Special Projects Section, D. Lee Harris, Kenneth M. Nagler, Francis Pooler, Jr., and Leo R, Quenneville. The staff of this section performed the laborious and painstaking plotting of data and prepara~ tion of the finished manuscript.