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Shieldwerx SWX-201HD

5% Borated Polyethylene Neutron Radiation Shielding

Features

Borated polyethylene with excellent mechanical and nuclear shielding characteristics
Contains high hydrogen content with 5% boron
Available in slabs, cylinders, pellets, and other custom shapes

Introduction

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.

Shieldwerx 4' x 8' Borated Polyethylene Sheets

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 lbs. / 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 (Polyethylene-Base)	Width		Length		Thickness
Borated Sheets (Polyethylene-Base)	Inch	mm	Inch	mm	Inch	mm
SWX-201U	24	610	24	610	1	25
SWX-201R	48	1219	48	1219	1	25
SWX-201G	48	1219	96	2438	1	25
SWX-201C	4	102	8	203	2	51
SWX-201B	24	610	24	610	2	51
SWX-201X	48	1219	48	1219	2	51
SWX-201D	24	610	24	610	4	101
SWX-201E	36	914	48	1219	4	101
	Custom sizes and thicknesses are available

Technical Information

Other Shieldwerx Shielding Products

For more information or to request a quotation, please contact us

by phone at: (865) 947-5123 or by email at: sales@deqtech.com.