THE CALCULATION OF THE GAMMA SHIELDING PROTECTION IN EXPANDING RADIATION FIELDS

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Atompraxis (West Germany) Incorporated in Kerntechnik

OSTI ID:4258555

Plesch, R

The usual, purely exponential calculation of shield thicknesses for gamma radiators supplies minimum values which in many cases cannot provide the desired protection, since the influence of secondary radiation causcd by single or multiple Compton processes is not taken into consideration in the exponential calculation. By applying the dose build-up factor B, which can be represented in close approximation as a function of the shield thickness A, the influence of scattered radiation can be taken into account; the maximum values thus obtained for shield thickness result in adequate radiation protection. Two diagrams are given for these values, using lead as shield material. Another diagram makes possible the calculation of equivalent iron thicknesses. By introducing a specific identification number K for each problem in radiation protection, the diagrams can be used freely for various protection conditions. It is shown how to determine shield thickness for complex gamma-radiators (radiation mixtures), and in conclusion all the processes are illustrated by practical examples. (auth)

• Research Organization: Wernerwerk fur Messtechnik, Karlsruhe, Ger.
• NSA Number: NSA-13-004847
• OSTI ID: 4258555
• Journal Information: Atompraxis (West Germany) Incorporated in Kerntechnik, Journal Name: Atompraxis (West Germany) Incorporated in Kerntechnik Vol. Vol: 4; ISSN ATPXA
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ABSORPTION
BUILDUP
COMPTON EFFECT
DIAGRAMS
GAMMA RADIATION
IRON
LEAD
NUMERICALS
PHYSICS AND MATHEMATICS
RADIATION DOSES
RADIATION PROTECTION
RADIATIONS
SCATTERING
SHIELDING
THICKNESS
USES