The Scattering of Thermal Radiation Into Open Underground Shelters
The Scattering of Thermal Radiation Into Open Underground Shelters

Author: J. A. Basso

Publisher:

Published: 1959

Total Pages: 26

ISBN-13:

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Although transient effects caused by the rapid heating of the entryway walls could have resulted in a considerable increase in the entryway transmission, it is felt that radiant energy was neither the sole causative agent nor the most important causative agent in producing burns within the shelters. Hot winds and/or hot wind-borne dust are now considered to be the most likely agents.

Defense Readiness
Defense Readiness

Author: United States. Federal Aviation Administration. Library Services Division

Publisher:

Published: 1964

Total Pages: 52

ISBN-13:

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Nuclear Science Abstracts
Nuclear Science Abstracts

Author:

Publisher:

Published: 1970

Total Pages: 1258

ISBN-13:

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NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Experimental Evaluation of the Fallout-radiation Protection Afforded by a Southwestern Residence
Experimental Evaluation of the Fallout-radiation Protection Afforded by a Southwestern Residence

Author: Z. Burson

Publisher:

Published: 1962

Total Pages: 28

ISBN-13:

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An experimental study was conducted to determine the fallout-radiation protection afforded by a residence representative of a type of construction much in favor in the Southwest: a single-story stucco and frame house with a heavy shake roof and no basement. This study was one of many such studies sponsored by Civil Effects Test Operations, Division of Biology and Medicine, U. S. Atomic Energy Commission, for the purpose of evaluating the protection presently afforded by ordinary homes and structures against the dangers of fallout radiation. The protection afforded by the home was determined by simulating a fallout-radiation field above and immediately surrounding the house and measuring the radiation level within. The radiation field was simulated by pumping a sealed Co(60) source through a long length of tubing evenly distributed over the test area. Highly sensitive dose-integrating ionization chambers were used to measure the radiation level inside the structure. The test was performed rapidly, easily, and safely. Valid statistical data were obtained even though the radiation level was of such low magnitude that it was unnecessary to evacuate any of the neighboring homes. The protection factors within the house (ratio of exposure dose rate in the open field to exposure dose rate in the structure) ranged from 2.8 to 4.4, depending on the location. The results compare favorably with those found in previous exercises under similar conditions.

Experimental Evaluation of the Radiation Protection Provided by an Earth-covered Shelter
Experimental Evaluation of the Radiation Protection Provided by an Earth-covered Shelter

Author: Zolin G. Burson

Publisher:

Published: 1962

Total Pages: 48

ISBN-13:

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A study was undertaken to determine the protection against fallout radiation provided by an earth-covered shelter. The study indicated that the shelter offered excellent protection from fallout radiation deposited on and around the shelter. This study also added additional data to the research in radiation shielding provided by various structures which is being conducted by the Civil Effects Test Operations, Division of Biology and Medicine, U.S. Atomic Energy Commission. A fallout radiation field was simulated by pumping, at constant speed, a sealed Co60 source through a long length of tubing which was evenly distributed over an area. Radiation measurements were made Inside the shelter by dose-integrating ionization chambers. In general, the results indicated that the protection factor (ratio of the open-field exposure dose rate to the exposure dose rate in the structure) was approximately 5000 in the center of the shelter, increasing to 10,000 to 15,000 along the sides, and decreasing to about 3000 near the ends. Directly below vents the protection factor was found to be approximately 2500 at the 3-ft level. The shelter was a half-round corrugated-steel structure covered by a minimum of approximately 2 ft of earth on the top and 5 to 7 ft of earth on the sides.