The Scattering Of Thermal Radiation Into Open Underground Shelters

Author : J. A. Basso
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.7W/5 ( download)

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Download or read book The Scattering of Thermal Radiation Into Open Underground Shelters written by J. A. Basso and published by . This book was released on 1959 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.48/5 ( download)

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Download or read book THE SCATTERING OF THERMAL RADIATION INTO OPEN UNDERGROUND SHELTERS. written by and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Animals placed in open underground shelters at the Nevada Test Site during an atomic weapon test suffered skin burns of an unknown origin. From a study of the burns it was concluded that the causative agent entered the shelter from outside. the causative agent was subject to rectilinear propagation near the entrance. and the causative agent required a relatively unobstructed opening to effect entrance. The two most likely agents for such burns are hot winds and/or hot wind-borne dust that are forced into the shelter as the shock front from the weapon passes the shelter entrances and radiant energy from the fireball that is scattered into the shelter. A study was made to evaluate the contribution made by radiant energy and, if this contributioo proved to be significant, to suggest means of eliminating it. Extensive measurements were made in the laboratory on a scale model of the shelter and direct measurements were made on an actual shelter to ensure the validity of the laboraiory results. A Photronic cell and a MacBeth Illuminometer were used to measure the entryway transmission of total radiant energy. The consistency of the results with extended and point sources for the model shelter and the agreement of these results with those from a point source and sunlight for the underground shelter at the Nevada Test Site lead to considerable confidence in the ability to predict the amount of radiant energy that would reach the animals from a weapon of known size. The energy calculated on the basis of these static measurements is about 1/200 of that required to produce the burns. Although transient effects caused by the rapid heating of the entryway walls could have resulted in a considerable increase in the entyway transmission. It is felt thai radiant 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. (auth).

Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1812 pages
Book Rating : 4.28/5 ( download)

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Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1960 with total page 1812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1366 pages
Book Rating : 4.35/5 ( download)

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Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1968 with total page 1366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : United States. Federal Aviation Administration. Library Services Division
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.69/5 ( download)

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Download or read book Defense Readiness written by United States. Federal Aviation Administration. Library Services Division and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
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ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.26/5 ( download)

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Download or read book Radioactive-fallout written by and published by . This book was released on 1961 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : United States. Dept. of Commerce. Office of Technical Services
Publisher :
ISBN 13 :
Total Pages : 856 pages
Book Rating : 4.12/5 ( download)

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Download or read book OTS Selective Bibliography written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.4N/5 ( download)

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Download or read book Experimental Radiation Measurements in Conventional Structures: Radiation measurements in two two-story and three one-story typical residential structures before and after modification written by Zolin G. Burson and published by . This book was released on 1964 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.5L/5 ( download)

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Download or read book Experimental Radiation Measurements in Conventional Structures: Comparison of measurements in above-ground and below-ground structures from simulated and actual fallout radiation written by Zolin G. Burson and published by . This book was released on 1964 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.8F/5 ( download)

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Download or read book Experimental Evaluation of the Radiation Protection Provided by an Earth-covered Shelter written by Zolin G. Burson and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.