UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) READ INSTRUCTIONS FORM BEeReNG REPORT DOCUMENTATION PAGE 2. GOVT ACCESSION NO] 3. RECIPIENT'S CATALOG NUMBER 1. REPORT NUMBER WT-1681 (EX) &. TITLE (and Subtitie) S$. TYPE OF REPORT &@ PERIOD COVERED Operation HARDTACK - Project 2.13 Gamma Radiation and Induced Activity From Very- 7. Low-Yield Bursts 6. PERFORMING ORG. REPORT NUMBER AUTHOR(s) 8. D. R. Griesmer Z. G. Burson T. P. Baker 8. WT-1681 (EX) CONTRACT OR GRANT NUMBER(e) P. N. Dean : PERFORMING ORGANIZATION NAME ANO ADDRESS 10. PROGRAM ELEMENT, PROJECT, TASK AREA & WORK UNIT NUMBERS 12. REPORT OATE 18. SECURITY CLASS. (of thie report) Air Force Special Weapons Center Kirtland Air Force Base, New Mexico 11. 14. CONTROLLING OFFICE NAME AND ADORESS Headquarters Field Command Defense Atomic Support Agency Sandia Base, Albuquerque, New Mexico October 28, 1960 13. NUMBER OF PAGES MONITORING AGENCY NAME &@ ADORESS(if different from Controlling Oftice) UNCLASSIFIED 1Se. 16. OCECL ASSIFICATION/ COWNGRADING SCMHEOULE OCISTRIBUTION STATEMENT (of thie Report) Approved for public release; unlimited distribution. 17. le. 19. 29. CAST RIBUTION STATEMENT (of the ebstract entered in Block 20, if dilterent from Report) SUPPLEMENTARY NOTES This report has had the classified information removed and has been republished in unclassified form for public release. This work was performed by Kaman Tempo under contract DNA0O1-79-C-0455 with the close cooperation of the Classification Management Division of the Defense Nuclear Agency. KEY WORDS (Continue on reverse side if necessary and identify by block number! Operation HARDTACK Gamma Radiation ABSTRACT (Continue on reverse side If neceasary and identily by block number) The principal objectives were to measure: (1) initial-gamma dose rate, (2) total initial-gamma dose, (3) total neutron dose in low dose regions, and (4) rate of induced activity decay in soil, all for very-low-yield nuclear bursts. A secondary objective was to field-test a prototype of the standard Air Force fallout detector (MG-3). DD viens 1473s Evi tion OF | Nov 651s OBSOLETE UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered)

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