Neutron & Gamma Putties

Boron Neutron Putty
SWX-261

Neutron Putty is readily pliable, yet has enough consistency to hold its shape after placement, requiring no special tools or techniques to create a neutron shield in an irregular space. Neutron Putty can be used for collimation of neutrons and for neutron streaming. It is a non-hardening, reusable, boron loaded putty.

It contains 10% boron and has a high hydrogen content to slow fast neutrons to thermal neutrons. It is readily available in 8-lb (3.6kg) cans and has a density of 1.1 g/cc (69 lbs/ft³).

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Iron Gamma Putty
SWX-462

Gamma Putty is typically used for shielding gamma streaming paths in small irregularly shaped spaces for temporary as well as semi-permanent applications. It is also used in wire/conduit and cable tray penetrations and radiographic film masking to prevent undercutting and radiation scattering.

The material contains iron (70% by weight) that will not dry out to form a powder. Its density is 2.5 g/cc (150 lbs./cu.ft.) and is provided in 10-lb. containers (others sizes available on request).

Gamma Putty is also available with Bismuth.

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Bismuth Gamma Putty
SWX-262

Gamma Putty is a bismuth-loaded low-density polyethylene putty typically used for shielding gamma streaming paths in small irregularly shaped spaces for temporary as well as semi-permanent applications. It will not crack or dry out under normal environmental conditions.

The material contains bismuth (90% by weight) that will not dry out to form a powder. Its density is 3.8 g/cc (238 lbs./cu.ft.) and is provided in 10-lb. containers (others sizes available on request).

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