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| Customization: | Available |
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| Material: | Borated PE |
| Primary Composition: | Polyethylene + Boron Carbide (B4c) or Boron Compou |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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A. Product Basics
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| 1. What is Borated Polyethylene (BPE)? | Borated Polyethylene is a composite shielding material made by uniformly dispersing boron compounds (typically boron carbide, B4C) into a polyethylene matrix. It is primarily designed to effectively absorb and moderate thermal and epithermal neutrons. |
| 2. What are the key advantages of BPE? | • Highly Effective for Neutrons: Boron-10 has a very high cross-section for absorbing thermal neutrons. • Lightweight & Durable: Compared to concrete or other heavy shields, BPE is lighter and offers good mechanical strength for fabrication. • Easy to Fabricate: Can be machined (cut, drilled, milled) using standard tools. • Clean and Safe: Non-toxic, lead-free, and does not become radioactive itself. |
| 3. What is the role of polyethylene and boron? | The polyethylene (rich in hydrogen) slows down fast neutrons through elastic scattering (moderation). The boron (specifically the B-10 isotope) then captures the slowed neutrons, producing an alpha particle and lithium nucleus, which are easily stopped within the material. |
B. Technical Specifications & Selection
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| 4. How do I choose the right boron content (e.g., 1% vs. 5% vs. 30%)? | Selection depends on your neutron spectrum and required attenuation. • Lower content (1%-5%): Common for moderation and partial absorption in mixed radiation fields. • Higher content (10%-30%): Used for maximum neutron absorption in high-flux areas or where space is limited (e.g., around detectors, in portable shields). Our engineers can help you select the optimal grade. |
| 5. What is the typical density of your BPE? | Our standard BPE density ranges from 0.95 g/cm³ to 1.30 g/cm³. Density can be adjusted based on boron content and specific shielding requirements. Higher density often correlates with better shielding per unit thickness. |
| 6. Does BPE shield against gamma rays? | BPE provides minimal gamma shielding. For environments with both neutron and gamma radiation, we recommend a composite design, such as layering BPE with lead, steel, or using our integrated Lead-BPE panels. |
| 7. What are the standard sizes and can you customize? | We offer standard sheets (e.g., 2000mm x 1000mm) in thicknesses from 10mm to 300mm. Full customization is our specialty-we can produce blocks, cylinders, curved parts, and complex shapes to your exact drawings, including custom boron content and density. |
C. Application & Installation
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| 8. Where is BPE commonly used? | BPE is used in: • Nuclear Power Plants: Doors, walls, storage casks. • Medical: Radiotherapy rooms (LINAC, BNCT), PET isotope production. • Research: Particle accelerators, nuclear physics labs, neutron radiography. • Industrial: Neutron well logging, cargo scanning, portable inspection systems. |
| 9. How is BPE installed or assembled? | BPE components are typically mechanically fastened (bolted) into frames or structures. They can also be bonded with specific epoxies for permanent joints. We can design systems with interlocking edges (tongue-and-groove) for seamless, gap-free walls. |
| 10. What is the service temperature? | Our BPE has a safe continuous operating temperature range of -40°C to +80°C. It should be kept away from open flames or sustained high temperatures that could cause deformation. |
D. Quality & Safety
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| 11. How do you ensure uniform boron distribution? | We use specialized compounding and extrusion/pressing processes that ensure homogeneous dispersion of boron carbide throughout the polyethylene matrix. Quality is verified through sampling and testing. |
| 12. What quality certifications do you have? | Our manufacturing follows an ISO 9001 quality management system. We provide Material Certificates (CoC) with each shipment. Products are RoHS compliant. Additional testing reports (e.g., neutron transmission) can be arranged. |
| 13. Is BPE safe to handle and machine? | Yes. It is non-radioactive and safe for standard workshop handling. During machining, we recommend using dust collection systems and standard PPE (safety glasses, dust masks) as a precaution against fine particles. |
E. Ordering & Support
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| 14. Can I get a sample for testing? | Yes, we offer sample kits or small test pieces for material evaluation and neutron testing. Please contact our sales team with your requirements. |
| 15. How do I get a quote and what's the lead time? | Please provide your specifications (dimensions, boron content, quantity, drawings if any) for a prompt quotation. Standard product lead time is 2-4 weeks. Custom projects vary based on complexity. |
| 16. Do you offer technical and design support? | Absolutely. Our engineering team provides full design support-from material selection and performance simulation (MCNP) to CAD drawings for complex shielding solutions. |
Disclaimer: The information provided here is for general reference. Specific performance depends on the exact product grade and application conditions. For critical projects, we strongly recommend consulting with our sales team for a tailored solution.
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