Flexible local shielding
The brochure describes columnar and complex-shaped components, as well as integration with magnetic material for mounting. Confirm curvature, overlap, restraint and handling loads for the installation.
Black flexible sheet roll · illustrative renderingRADBAR / NUCLEAR
Gamma shielding materials
Flexible lead-free materials for source-specific gamma shielding applications. Define radionuclide, energy, geometry and mechanical constraints before selecting an ALF or RLF solution.
Lead-free materialFlexible shieldingSource-specificProduct specifications
- Material families
- ALF / RLF
- Supply
- Sheet and roll materials
- Design inputs
- Source, energy, geometry and load limits
Source: manufacturer product literature linked above. Confirm current model, test conditions and supply specification for your order.
01 / PRODUCT INSIGHT
From material to application.
The 2021 catalog describes flexible composites made from radiation-absorbing fillers and polymer materials. ALF and RLF are source-specific material families, with roll stock that can be cut, bent or formed around components. Historical specifications below support an engineering discussion; confirm current availability and source-specific performance.
ALF low-energy reference
The ALF specification table identifies Am-241 and energies below 100 keV. The source also discusses Pu-238 and Fe-55 in a historical test-method section; these references do not establish a universal radionuclide rating.
Source-specific evaluation
Radionuclide, energy spectrum, source geometry, shielding thickness and distance must be considered together. Low-energy data cannot be extended to high-energy gamma or neutron fields.
02 / TECHNICAL DATA
Models, values and their conditions.
Transcribed from manufacturer literature, with source references and conditions kept alongside each table.
| Model | Lead equivalence (mmPb) | Areal weight (kg/m²) | Thickness (mm) | Roll size |
|---|---|---|---|---|
| RLF-125W | 0.125 | 1.55 | 0.30 ± 0.02 | 700 mm × 10 / 20 m |
| ALF-125W | 0.125 | 1.2 | 0.31 ± 0.02 | 1250 mm × 20 m |
| ALF-250W | 0.25 | 2.25 | 0.61 ± 0.04 | 1250 mm × 20 m |
RLF values are on page 3; ALF values are on page 4. ALF is listed for Am-241 / below 100 keV. The RLF energy column mixes kV notation and gamma references, so no gamma-energy rating is inferred here.
Source: γ-Ray Protection Sheeting for Nuclear, page 3 · 202111| Reference quality | Single layer | Double layer |
|---|---|---|
| N120 | 43.41% | 67.16% |
| N150 | 32.68% | 53.46% |
| N200 | 15.60% | 28.89% |
Manufacturer-reported RLF data under the page-3 reference X-ray qualities and filtration conditions, referencing GB/T 12162.1-2000. These are not radionuclide-independent gamma attenuation values. Request the original report before design use.
Source: γ-Ray Protection Sheeting for Nuclear, page 3 · 202111| Size (mm) | Catalog lead equivalence |
|---|---|
| 200 × 800 | 2 mmPb |
| 500 × 500 | 4 mmPb |
| 500 × 1000 | 3 mmPb |
Historical application examples, not a current stock list. Lead equivalence alone does not establish protection against a pipeline’s radionuclide spectrum. Confirm current construction and source-specific testing.
Source: γ-Ray Protection Sheeting for Nuclear, page 5 · 20211103 / APPLICATIONS
Where it fits
- Local wraps around pipeline hot spots and temporary shielding layouts for maintenance assessment.
- The historical catalog also illustrates mobile shielding frames and protective garments/accessories; confirm current product availability and intended-use documentation separately.
04 / SELECTION QUESTIONS
A closer look at your specification.
Why is the catalog’s 90% claim not assigned to a current ALF model?
The text uses “ALF-25W”, while the specification table lists ALF-125W and ALF-250W. The identity and test conditions need clarification before associating that result with a current supplied product.
Can medical X-ray lead equivalence define gamma shielding?
No. Gamma shielding requires the source energy spectrum and geometry. Specify material thickness and measured transmission for the relevant source rather than transferring a medical X-ray label.
SOURCE LITERATURE
View full PDFγ-Ray Protection Sheeting for Nuclear
Manufacturer literature · referenced pages 2–5 · edition 202111
Selection notes explain the literature and do not replace model-specific instructions, test reports or project design.
Related materials
LET’S ENGINEER WHAT’S NEXT
Your application. Our next conversation.
Share your equipment, radiation conditions and design constraints. Start with a material decision grounded in evidence.