NOMOGRAMS FOR THE CALCULATION OF AQUEOUS SHIELDS FOR NEUTRONS ORIGINATING FROM ($alpha$,n) SOURCES

Journal Article · Thu Aug 01 04:00:00 EDT 1963 · At. Energy. (USSR)

OSTI ID:4694811

Kramer-Ageev, E A; Mashkovich, V P

Water and paraffin are the most commonly used neutron shielding materials for the ( alpha ,n) type sources. In order to facilitate the calculations, nomograms were constructed from which the data needed for the design of water shields can be obtained very conveniently. The nomograms correlate the radiation rate S (n/sec) of the isotropic point source, the distance R (cm) from the source to the operating area, and the thickness d (cm) of the water shield. An operational period of 6 hours per day and a maximum permissible occupational exposure of 0.1 rem per week were used as basis of the construction of the nomnograms; other conditions may be substituted by making suitable corrections in the graphs. The field of the nomogram lying to the right of the zero thickness (d = 0) line indicates the safe operating conditions. The region in which greater shielding is needed than the distance provided, is indicated by shading. Examples are given for Po--Be sources. It is emphasized that the requirements for complete gamma shielding must be calculated separately. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-042157
• OSTI ID: 4694811
• Journal Information: At. Energy. (USSR), Journal Name: At. Energy. (USSR) Vol. Vol: 15
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALPHA BEAMS
CONFIGURATION
DIAGRAMS
GAMMA RADIATION
NEUTRON SOURCES
NEUTRONS
NUCLEAR REACTIONS
PARAFFIN
PHYSICS
PLANNING
POLONIUM
RADIATION DOSES
SHIELDING
THICKNESS
WATER