UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) READ INSTRUCTIONS BEFORE COMPLETING FORM REPORT DOCUMENTATION PAGE 1. REPORT NUMBER 2. GOWT ACCESSION NO. WT-1677 (EX) 4. TITLE (and Subtitie) Operation HARDTACK - Projects 2.9/2.12b Gamma Dose From Very-Low-Yield Bursts 7. AUTHOR(s) 3. RECIPIENT’S CATALOG NUMBER S. TYPE OF REPORT & PERIOD COVERED 6. PERFORMING ORG. REPORT NUMBER 8. CONTRACT OR GRANT NUMBER/(s) WT-1677 (EX) J. C. Maloney M. Morgenthau 9. PERFORMING ORGANIZATION NAME ANO AOORESS 10. PROGRAM ELEMENT, PROJECT, TASK CONTROLLING OFFICE NAME ANO ADORESS 12. REPORT CATE MONITORING AGENCY NAME & ADDRESS(if different from Controlling Office) 18. SECURITY CLASS. (of thie report) U.S. Army Chemical Warfare Laboratories Army Chemical Center Maryland It. 14. AREA & WORK UNIT NUMBERS August 24, 1960 1). NUMBER OF PAGES Headquarters Field Command Defense Atomic Support Agency Sandia Base, Albuquerque, New Mexico UNCLASSIFIED 1Se. 16. DECLASSIFICATION/ DOWNGRADING SCHEOULE OISTRIBUTION STATEMENT (of this Report) Approved for public release; unlimited distribution. 17. OFSTRIGUTION STATEMENT (of the abstract entered in Block 20, if different trom Report) 16. 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 DNAOQO1-79-C-0455 with the close cooperation of the Classification Management Division of the Defense Nuclear Agency. 19. 20. KEY WORDS (Continue on reverse side if necessary and identify by block number) Operation HARDTACK Gamma Dose ABSTRACT (Continue on reverse side if necessary end identify by block number) Project 2.9 participated in Shot Quince and Shot Fig with the following objectives: (1) to document the initial gamma dose versus ground range and (2) to measure the total gamma dose received at a point as a function of time, at distances of military interest, for a fractional-kiloton nuclear surface burst. Project 2.12b participated in Shot Hamilton and Shot Humboldt with the following objectives: (1) to provide gamma-dose measurements in support of the biomedical Project 4.2 and (2) to document the initial gamma dose versus ground range. DD i ents 1473 Edi TION OF t Wov 6815 CBSOLETE UNCLASSIFIED SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered)

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