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Operation Upshot-Knothole. Project 6.9. Evaluation of Naval Airborne Radiac Equipment.
Rept. for Mar-Jun 53,
ATOMIC ENERGY COMMISSION WASHINGTON DC
Pagination or Media Count:
Five Types of Naval airborne RADIAC equipment were tested and evaluated in conjunction with five atomic detonations. The ANADR-1 automatic recording dosimeters provided gamma intensity contours at altitude. Extrapolation of these curves to ground level gave values for ground gamma intensity which appear to be correct within an order of magnitude. The ANADR-4 ground intensity survey equipment gave patterns for ground intensity which were not in close agreement with those determined on the ground. However, introduction of a scale factor of dividing by 1.8 gives a reasonable introduction of a scale factor of dividing by 1.8 gives a reasonable agreement. The ANUSQ-1 and ANARR-29 gamma intensity telemetering system was completely unsatisfactory. The gamma intensity droppable flashing light units possessed insufficient light emission to be detectable at 2000 feet altitude unless the location of the units was precisely known. The droppable gamma intensity flares either did not operate properly or failed to fall in a sufficiently high intensity area to be activated. Only two of these units were available fo drop and the results are inconclusive.
APPROVED FOR PUBLIC RELEASE