An Aerial Radiological Survey of the Oyster Creek Nuclear Power Plant and Surrounding Area, Forked River, New Jersey. Date of Survey
An Aerial Radiological Survey of the Oyster Creek Nuclear Power Plant and Surrounding Area, Forked River, New Jersey. Date of Survey

Author:

Publisher:

Published: 1994

Total Pages: 12

ISBN-13:

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An aerial radiological survey was conducted over the Oyster Creek Nuclear Power Plant in Forked River, New Jersey, during the period September 18 through September 24, 1992. The survey was conducted at an altitude of 150 feet (46 meters) over a 26-square-mile (67-square-kilometer) area centered on the power station. The purpose of the survey was to document the terrestrial gamma radiation environment of the Oyster Creek Nuclear Power plant and surrounding area. The results of the aerial survey are reported as inferred gamma radiation exposure rates at 1 meter above ground level in the form of a contour map. Outside the plant boundary, exposure rates were found to vary between 4 and 10 microroentgens per hour and were attributed to naturally-occurring uranium, thorium, and radioactive potassium gamma emitters. The aerial data were compared to ground-based benchmark exposure rate measurements and radionuclide assays of soil samples obtained within the survey boundary. The ground-based measurements were found to be in good agreement with those inferred from the aerial measuring system. A previous survey of the power plant was conducted in August 1969 during its initial startup phase. Exposure rates and radioactive isotopes revealed in both surveys were consistent and within normal terrestrial background levels.

Aerial Radiological Measuring Survey of the Area Surrounding the Dresden Nuclear Power Station, Morris, Illinois, September 1968
Aerial Radiological Measuring Survey of the Area Surrounding the Dresden Nuclear Power Station, Morris, Illinois, September 1968

Author: P. K. Boyns

Publisher:

Published: 1973

Total Pages: 84

ISBN-13:

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The Aerial Radiologcal Measuring System (ARMS), operated for the U.S. Atomic Energy Commission, was used to perform surveys of several operational and non-operational reactor sites during the summer months of 1968. The data collected on these surveys included aerial photographs of the installations. Aerial radiation survey data consisting of exposure rates normalized to 3 feet above the ground plus gamma ray spectral charts, effluent characterization for operational sites (intensity rates and isotope constituents), and pertinent descriptive information of the installation. Data collected during the survey of the Dresden Nuclear Power Station and surrounding area, including an effluent plume track, are presented.

An Aerial Radiological Survey of the Millstone Nuclear Power Station and Surrounding Area
An Aerial Radiological Survey of the Millstone Nuclear Power Station and Surrounding Area

Author:

Publisher:

Published: 1994

Total Pages: 13

ISBN-13:

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An aerial radiological survey was conducted during the period of September 10 to 18, 1990, over a 40-square-mile (104-square-kilometer) area surrounding the Millstone Nuclear Power Station (MNPS). The MNPS is located on the Long Island Sound shoreline, three kilometers south of Waterford, Connecticut. The purpose of the survey was to measure and document the terrestrial gamma ray environment of the plant and surrounding areas. A contour map showing radiation exposure rates at 1 meter above ground level was constructed from the aerial data and overlaid on an aerial photograph and a United States Geological Survey map of the area. The exposure rates within the survey region are quite uniform. The area is characterized by an exposure rate of 10-12 microroentgens per hour including an estimated cosmic ray contribution of 3.6 [mu]R/h. This is typical of natural background. The only exception to the natural background readings is the Millstone station itself, which is characterized by an exposure rate consistent with the standard operation of the reactor units. Radionuclide assays of soil samples and pressurized-ion-chamber gamma ray measurements were obtained at five locations within the survey boundaries. These measurements were taken in support of, and are in agreement with, the aerial data. The radiological environment near the plant is consistent with normal plant operation.

An Aerial Radiological Survey of the Robert Emmett Ginna Nuclear Power Plant and Surrounding Area, Ontario, New York
An Aerial Radiological Survey of the Robert Emmett Ginna Nuclear Power Plant and Surrounding Area, Ontario, New York

Author:

Publisher:

Published: 1997

Total Pages: 34

ISBN-13:

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Terrestrial radioactivity surrounding the Robert Emmett Ginna Nuclear Power Plant was measured using aerial radiological surveying techniques. The purpose of this survey was to document exposure rates near the plant and to identify unexpected, man-made radiation sources within the survey area. The surveyed area included land areas within a three-mile radius of the plant site. Data were acquired using an airborne detection system that employed sodium iodide, thallium-activated detectors. Exposure-rate and photopeak counts were computed from these data and plotted on aerial photographs of the survey area. Several ground-based exposure measurements were made for comparison with the aerial survey results. Exposure rates in the area surrounding the plant site varied from 6 to 10 microroentgens per hour. Man-made radiation (cobalt-60 within the plant site and cesium-1 37 directly over the reactor) was found at the plant site. In addition, small areas of suspected cesium-137 activity were found within the survey areas. Other than these small sites, the survey area was free of man-made radioac- tivity.

An Aerial Radiological Survey of the Vermont Yankee Nuclear Power Station and Surrounding Area, Vernon, Vermont
An Aerial Radiological Survey of the Vermont Yankee Nuclear Power Station and Surrounding Area, Vernon, Vermont

Author:

Publisher:

Published: 2001

Total Pages:

ISBN-13:

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An aerial radiological survey was conducted over the Vermont Yankee Nuclear Power Station in Vernon, Vermont, during the period August 7 through August 17, 1989. The survey was conducted at an altitude of 300 feet (91 meters) over a 65-square-mile (168-square-kilometer) area centered on the power station. The purpose of the survey was to document the terrestrial gamma radiation environment of the Vermont Yankee Power Station and surrounding area. The results of the aerial survey are reported as inferred gamma radiation exposure rates at 1 meter above ground level in the form of a contour map. Outside the plant boundary, exposure rates were found to vary between 6 and 10 microroentgens per hour ([mu]R/h) and were attributed to naturally occurring uranium, thorium, and radioactive potassium gamma emitters. The aerial data were compared to ground-based[open-quotes]benchmark[close-quotes] exposure rate measurements and radionuclide assays of soil samples obtained within the survey boundary. The ground-based measurements were found to be in good agreement with those inferred from the aerial measuring system.