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Tungsten shielding for medical radiography
| Payment Type: | T/T |
| Incoterm: | FOB,CIF,EXW,FCA,Express Delivery |
| Min. Order: |
1Piece/Pieces |
Attributes
Model No.: JDTG-TS-025
Brand: ZZJD
Place Of Origin: China
Material: Tungsten
Density: 18.10±0.15g/cm³
Color: Natural
Size: Support customization
PACKAGING & DELIVERY
Selling Units :Piece/Pieces
Package Type : Standard export packing
DESCRIPTION
Here’s a detailed technical and practical comparison between tungsten alloy and depleted uranium (DU) for radiation shielding applications:
Tungsten Alloy vs. Depleted Uranium Shielding: Key Differences
Property Tungsten Alloy (WNiFe/WCu) Depleted Uranium (DU) Winner
Density (g/cm³) 17.0–19.3 18.6–19.1 ≈ Tie
Attenuation Efficiency Slightly lower for high-energy gamma Superior for high-energy gamma/neutrons DU
Toxicity Non-toxic, ROHS-compliant Radioactive (alpha particles), requires licensing Tungsten
Corrosion Resistance Highly resistant (Ni/Fe/Cu matrix) Oxidizes over time (uranium oxide dust risk) Tungsten
Machinability Hard but machinable with carbide tools Softer, but toxic dust requires special handling DU (ease)
Regulations No restrictions ITAR-controlled, requires NRC/DOE permits Tungsten
Thermal Conductivity Moderate (WCu alloys improve heat dissipation) Poor Tungsten
Magnetic Properties Non-ferromagnetic (WNiFe) Ferromagnetic (issues in MRI/labs) Tungsten
Gamma Radiation Shielding Performance
<500 keV: Tungsten matches DU (e.g., Tc-99m, I-131).
>1 MeV (Co-60, Cs-137): DU provides 5–10% better attenuation due to higher Z (92 vs. 74).
Neutron Shielding: DU outperforms (uranium’s fissionable properties help absorb neutrons).
When to Choose Tungsten?
Medical Facilities (PET/CT, radiopharmacy) – Safe for staff/patients.
Commercial/Industrial – Avoid regulatory hurdles.
High-Temp/Chemical Exposure – Won’t degrade like DU.
When DU Might Be Preferred?
Military/Aerospace – Where maximum density is critical (e.g., armor, aircraft counterweights).
High-Energy Physics – Neutron-rich environments (research reactors).
Real-World Considerations
DU Alternatives: Tungsten is now mandated in many civilian applications (e.g., hospital shielding).
Environmental Impact: DU disposal is highly regulated; tungsten is recyclable.
Cost Comparison Example
Shielding Panel (100mm thick, 1m²) Tungsten Alloy Depleted Uranium
Material Cost ~$8,000 ~$3,000
Regulatory Compliance Costs $0 $5,000+ (permits, handling)
Lifetime Maintenance Low High (oxidation monitoring)
