Shieldwerx SWX-261

Neutron Putty Radiation Shielding

●  Used For Collimation of Neutrons and Neutron Steaming ●  Contains 10% Boron and High Hydrogen Content ●  Non-Hardening, Will Not Dry Out, Provided in 8 lb Cans   Shieldwerx SWX-261 Neutron Putty radiation shielding can be used for the collimation of neutrons and for neutron streaming. It is a non-hardening, boron loaded putty that contains 10% boron combined with a high hydrogen content. Neutron Putty can be kneaded by hand to obtain the desired consistency and workability. It can be softened by warming it up slightly for added workability. Disposable gloves are recommended when handling as the putty is quite sticky. A 1-inch thick layer of Neutron Putty has a thermal neutron attenuation factor of approximately 105.

Composition Data:

Hydrogen Atom Density/cm³: 5.9 x 10²²

Natural Isotope Distribution: 99.98% ¹H
Boron Atom Density/cm³: 6.1 x 10²¹
Natural Isotope Distribution: 19.6% ¹⁰B and 80.4% ¹¹B
Weight Percent of All Isotopes of Boron: 10%
Total Density: 1.1 g/cm³ (69 lb/ft³)

Radiation Properties:

Macroscopic Thermal Neutron Cross Section: 4.7 (cm^-1)                        
Gamma Resistance: 5 x 10⁸ rad
Neutron Resistance: 2.5 x 10¹⁷ n/cm²

Physical Properties:

State: putty
Color: white
Odor: no significant odor
Machinability: poor

Thermal Properties:

Recommended Temperature Limit: 110 °F (45 °C)

Chemical Properties:

Trade Name & Synonyms: SWX-261 Neutron Putty
Chemical Family: borated poly putty