Penetration of Plane Normal and Plane Slant Gamma Rays Through Slabs of Aluminum and Steel
Author : N. E. Scofield
Publisher :
Page : 106 pages
File Size : 31,50 MB
Release : 1956
Category : Gamma rays
ISBN :
Author : N. E. Scofield
Publisher :
Page : 106 pages
File Size : 31,50 MB
Release : 1956
Category : Gamma rays
ISBN :
Author : R. L. Lynn
Publisher :
Page : 46 pages
File Size : 34,64 MB
Release : 1958
Category :
ISBN :
Author : N. E. SCOFIELD
Publisher :
Page : 55 pages
File Size : 16,69 MB
Release : 1960
Category :
ISBN :
EXPERIMENTALLY MEASURED DIFFERENTIAL ENERGY AND ANGLE SPECTRA OF THE SCATTERED GAMMA-PHOTON NUMBER FLUX ARE PRESENTED FOR CESIUM 137 AND COBALT 60 SOURCE GAMMA RAYS NORMALLY INCIDENT UPON SLABS OF ALUMINUM ANDIRON VARYING IN THICKNESS FROM ONE TO FIVE MEAN FREE PATHS. SPECTRAL MEASUREMENTS FOR OBLIQUE ANGLES OF SOURCE PHOTON INCIDENCE WERE ALSO MADE FOR COBALT 60 AND SLABS OF IRON WITH SLANT THICKNESSES OF TWO AND FIVE MEAN FREE PATHS. DETECTION ANGLES OF 5, 10, 20, 30, 45 AND 60 DEG WERE USED. SPECTRA ARE COMPARED TO SHOW THE EFFECTS OF SLAB MATERIAL, SLAB THICKNESS, SOURCE ENERGY, DETECTION AND INCIDENCE ANGLE AS WELL AS THE PROPORTION OF SINGLE AND MULTIPLE SCATTERING. THE RESULTS WERE NORMALIZED TO A PRIMARY INCIDENT FLUX OF ONE PHOTON SQ CM SEC.
Author : United States. Congress. House. Committee on Government Operations
Publisher :
Page : 748 pages
File Size : 49,64 MB
Release : 1962
Category : Civil defense
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Author : United States. Congress. House Government Operations
Publisher :
Page : 752 pages
File Size : 26,73 MB
Release : 1962
Category :
ISBN :
Author : S. K. Penny
Publisher :
Page : 576 pages
File Size : 29,17 MB
Release : 1965
Category : Shielding (Radiation)
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Author : J. T. Serduke
Publisher :
Page : 69 pages
File Size : 49,47 MB
Release : 1964
Category :
ISBN :
This report presents in tabular and graphical form data from experimental measurements of scattered gamma radiation from slabs of aluminum and steel. Monoenergetic gamma rays from Cs137 and Co60 sources with plane-normal incidence were used as irradiation sources. Detection angles used were 5, 10, 20, 30, 45, and 60 deg with effective thicknesses of one, two, three, four, and five 'mean-free-paths' of slab material. Since it was desirable to have spectra for larger angles (75 and 85 deg), a method of extrapolation was devised. The extrapolated spectra are presented in the text. Also included in this report are calculations of dose and buildup factors. There is also shown (in graphical form) how the over-all dose rate is affected by the added extrapolated spectra. (Author).
Author : S. Tomoeda
Publisher :
Page : 50 pages
File Size : 29,74 MB
Release : 1963
Category : Radiation dosimetry
ISBN :
In order to correlate some basic measurements of radiation attenuation made on an aircraft carrier to other situations and geometries, experiments were carried out to study the effects of source distance on the dose distribution inside a model-sized compartmented structure intended to simulate the carrier. Data are presented in the form of buildup factors (B[r) as functions of source-to-detector distance for two configurations of the compartmented structure. Buildup factors are also presented as functions of the slant path through the interposing steel plates for the case where the source is considered far from the structure. Comparisons of B[r within our complex structure with single-slab values are also included. In every case, the buildup factor for the compartmented structure was found to be consistently and significantly lower than the single-slab data. The greatest difference in buildup (B[r-1) amounted to 30 percent.
Author : Defense Documentation Center (U.S.)
Publisher :
Page : 1116 pages
File Size : 16,81 MB
Release : 1961-02
Category : Technology
ISBN :
Author : John Howard Hubbell
Publisher :
Page : 48 pages
File Size : 10,55 MB
Release : 1964
Category : Radioactive fallout
ISBN :