PENETRATION OF PLANE NORMAL AND PLANE SLANT GAMMA RAYS THROUGH SLABS OF ALUMINUM AND STEEL. II. ANGULAR AND ENERGY SPECTRA (PHOTON NUMBER FLUX)
Experimentally measured differential energy and angle spectra of the scattered gamma -photon number flux are presented for Cs/sup 137/ and Co/sup 60/ source gamma rays normally incident upon slabs of aluminum and iron varving in thickness from one to five mean free paths. Spectral measurements for oblique angles of source photon incidence were also made for Co/sup 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/sup o/ 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 have been normalized to a primary incident flux of one photon cm/sup -2/ sec/sup - 2/. (auth)
- Research Organization:
- Naval Radiological Defense Lab., San Francisco
- NSA Number:
- NSA-15-006635
- OSTI ID:
- 4001883
- Report Number(s):
- USNRDL-TR-475
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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