|
|
|
Introduction |
● 5%
Borated Polyethylene Neutron Radiation Shielding
● Excellent Mechanical and Nuclear Shielding Characteristics
● Contains High Hydrogen Content with 5% Boron
● Available in Slabs, Cylinders, Pellets and Custom Shapes
Shieldwerx SWX-201HD 5% Borated Polyethylene is typically used in neutron radiation shielding applications where low- and intermediate-levels of neutron flux are expected, but elevated temperatures are not. Its optimal boron content of 5% provides excellent attenuation of thermal neutrons, thus reducing the levels of capture-gamma radiation. SWX-201HD has a high hydrogen content, making it an effective fast neutron radiation shield. SWX-201HD is available in a wide range of form factors including slabs, bricks, cylinders, pellets, and other custom shapes. It is easily machined using common wood- and metal- working tools. Shieldwerx can not only provide custom machining, but can also pour SWX-201HD into custom made molds to provide application specific radiation shielding forms.
|
|
|
|
SWX-201G Borated Polyethylene |
SWX-201P Borated Polyethylene Pellets |
|
Specifications |
Composition Data:
Hydrogen Atom Density/cm3: 7.5 x 1022
Natural Isotope Distribution: 99.98% 1H
Boron Atom Density/cm3: 3.0 x 1021
Natural Isotope Distribution: 19.6% 10B and 80.4% 11B
Weight Percent of All Isotopes of Boron: 5.0%
Total Density: 1.08 g/cm3 (67 lb/ft3)
Radiation Properties:
Macroscopic Thermal Neutron Cross Section: 2.00 (cm-1)
Gamma Resistance: 5 x 108 rad
Neutron Resistance: 2.5 x 1017 n/cm2
Physical Properties:
State: bricks, slabs, cylinders, pellets
Color: green
Odor: no odor
Machinability: excellent
Compressive Strength: 800 psi
Thermal Properties:
Recommended Temperature Limit: 180 °F (82.2 °C)
Melting Point 210 °F (98.8 °C)
Boiling Point 300 °F (149 °C)
Thermal Conductivity 1
Cubical Coefficient of Expansion: 6.1 x 10-4
Linear Coefficient of Expansion: 2 x 104
Chemical Properties:
Chemical Name & Synonyms: Borated Polyethylene
Trade Name & Synonyms: SWX-201
Chemical Family: Polyolefin's
Formula: Mixture (CH2)n, B
Solubility in Water: negligible
AVAILABLE SIZES: borated sheets
SWX-201U: 24 x 24 x 1 in. (610 x 610 x 25 mm) (W x L x Thickness)
SWX-201R: 48 x 48 x 1 in. (1219 x 1219 x 25 mm) (W x L x Thickness)
SWX-201G: 48 x 96 x 1 in. (1219 x 2438 x 25 mm) (W x L x Thickness)
SWX-201C: 4 x 8 x 2 in. (102 x 203 x 51 mm) (W x L x Thickness)
SWX-201B: 24 x 24 x 2 in. (610 x 610 x 51 mm) (W x L x Thickness)
SWX-201X: 48 x 48 x 2 in. (1219 x 1219 x 51 mm) (W x L x Thickness)
SWX-201D: 24 x 24 x 4 in. (610 x 610 x 101 mm) (W x L x Thickness)
SWX-201E: 36 x 48 x 4 in. (914 x 1219 x 101 mm) (W x L x Thickness)
Custom sizes and thicknesses are available
|
Technical Information |
|
|
|
|
Shieldwerx Resources |