Description Of Tungsten Alloy Shielding Containers For FDG

Tungsten Transport Containers for FDG (Fluorodeoxyglucose, ¹⁸F) is a specialized shielded vessel designed to safely carry and store this radioactive tracer used in PET (Positron Emission Tomography) scans. Due to the high-energy positron (β⁺) and gamma (511 keV) emissions of ¹⁸F, tungsten's exceptional density (18–19 g/cm³) provides superior shielding compared to lead or steel, while maintaining a compact and lightweight design.

Features Of Tungsten alloy shielding containers for FDG

1. Material & Shielding Performance

Tungsten alloy (W-Ni-Fe/Cu):

Higher density than lead (~2× better attenuation per unit thickness).

Blocks >90% of 511 keV gamma rays with thinner walls.

Lead-free: Non-toxic and environmentally friendly.

Optional inner liner: Some designs include lead or copper layers to enhance shielding further.

2. Design Specifications

Capacity: Typically holds 1–4 standard FDG vials (10–30 mL volume).

Structure:

Double-layered lid: Ensures no radiation leakage during transport.

Dedicated vial slots: Prevents breakage and minimizes vial movement.

Compliance: Meets IAEA (SSR-6) and DOT/IATA regulations for radioactive material transport.

3. Portability & Safety

Weight: ~20–50% lighter than equivalent lead containers.

Ergonomic handles: Facilitate easy carrying.

Surface markings: Include radiation trefoil labels and dose rate information.

Applications Of Tungsten alloy shielding containers for FDG

Hospital/Radiopharmacy: Transporting ¹⁸F-FDG from cyclotron/PET facility to imaging centers.

Mobile PET Units: Shielding during on-site deliveries.

Research Labs: Safe handling of high-activity ¹⁸F samples.

Specifications Of  Tungsten alloy shielding containers for FDG