The specific requirements to accomplish this development were to 



1. develop a survey system that can be reliably operated in the field 

 and have a high degree of versatility relative to environmental 

 variables and choice of radionuclides, 



2. evaluate various radionuclides to determine those that are useful 

 in sediment transport experiments from the standpoint of cost, 

 physical properties, availability, and hazard, 



3. demonstrate the utility of the system under field conditions, 

 h. develop a technique for determination of sand burial, 



5. develop suitable tagging procedures for radionuclides considered 

 to be useful in sediment transport studies, 



6. correlate sand transport with wave and current variables. 



The multiagency study, involving the U. S. Atomic Energy Com mi ssion, 

 Department of the Army, Department of the Wavy, Department of the Air 

 Force, National Aeronautics and Space Administration, and the State of 

 California, receives technical support from the Oak Ridge National 

 Laboratory and the Coastal Engineering Research Center, with direct 

 assistance from the Pacific Missile Range, Western Test Range, First 

 Strategic Aerospace Division, Corps of Engineers for Los Angeles 

 District, Nuclear Systems, and Space Power Division, and Department of 

 Water Resources. Overall direction of the project rests with the Corps 

 of Engineers Coastal Engineering Research Center. The Isotopes 

 Development Center has been responsible for 



1. designing, fabricating, and testing of a submersible detection 

 system and appropriate analyzer system, 



2. assisting in the selection of applicable radioisotopes, 



3. developing processes for labeling sand with radionuclides, 



k. developing a radiological safety program. 



During this two-year period the major effort was directed toward de- 

 velopment of equipment and techniques for studying sediment transport 

 in the littoral zone (from shore line to water depths of 30 to 50 ft). 

 Three field tests were conducted to evaluate equipment performance and 

 the effectiveness of measuring and recording procedures: one at Cape 

 Kennedy, Florida, one at Surf, California, and one at Point Conception, 

 California. Instruments and methods were modified after each operation. 

 In order to show the rationale of the development of survey instruments 

 and techniques,' the field tests are reported in chronological order. 



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