Radiographic Inspection Testing Services – X-Ray & Gamma Ray NDT
Radiographic inspection is the process of assessing material with the use of x-ray or gamma-ray technologies It is one of the most extensive non-destructive testing techniques used to inspect items for indications of faults that can affect functionality.
TRUSTED BY
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Radiographic Inspection Testing Overview
Radiographic inspection testing (RT) is a non-destructive testing method used to examine the internal structure of materials and components using X-rays or gamma rays. The radiation penetrates the material and creates an image based on variations in density and thickness, allowing detection of internal defects without damaging the test specimen.
This technique is widely used in industries where internal integrity is critical, such as welding, casting, and structural components. It enables the identification of defects such as cracks, voids, porosity, and inclusions, ensuring the reliability and safety of materials in service.
Scope, Applications, and Benefits
Scope
Radiographic inspection evaluates:
- Internal defects such as cracks, voids, and inclusions
- Weld quality and fusion integrity
- Thickness variations and structural discontinuities
- Material density differences
- Quality of castings and fabricated components
Applications
- Weld inspection in pipelines and pressure vessels
- Casting and forging evaluation
- Aerospace and automotive components
- Oil & gas and power generation equipment
- Structural and industrial assemblies
Benefits
- Non-destructive evaluation of internal structure
- Detects subsurface and hidden defects
- Provides permanent visual records (radiographs)
- High accuracy for critical components
- Suitable for a wide range of materials
Radiographic Inspection Test Process
Sample Preparation
Component is cleaned and positioned between radiation source and detector.
1Radiation Exposure
X-ray or gamma radiation is directed through the material.
2Image Capture
Film or digital detector records radiation absorption differences.
3Data Analysis
Radiographic images are interpreted to identify internal defects and discontinuities.
4Radiographic Inspection Technical Specifications
| Parameter | Details |
|---|---|
| Standards | ASTM E94, ASTM E1742, ASTM E1032, ASME Section V |
| Radiation Sources | X-ray tubes, Ir-192, Co-60 isotopes |
| Detection Method | Radiographic film or digital detector |
| Applicable Materials | Metals, composites, ceramics, weldments |
| Image Quality | Controlled using IQI (Image Quality Indicators) |
| Measured Outputs | Internal defects, thickness variation |
Instrumentation Used for Testing
- X-ray generator or gamma radiation source
- Radiographic film or digital detector
- Image Quality Indicators (IQI)
- Lead screens and shielding
- Positioning fixtures
- Image processing and analysis system
Results and Deliverables
- Radiographic images (film or digital)
- Identification of internal defects
- Weld quality assessment
- Defect size and location analysis
- Inspection report with interpretation
Partnering with Infinita Lab for Optimal Results
Infinita Lab addresses the most frustrating pain points in the radiographic inspection testing process: complexity, coordination, and confidentiality. Our platform is built for secure, simplified support, allowing engineering and R&D teams to focus on what matters most: innovation. From kickoff to final report, we orchestrate every detail—fast, seamlessly, and behind the scenes.
Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote
Frequently Asked Questions
Radiographic inspection is a non-destructive testing method that uses X-rays or gamma rays to detect internal defects in materials without damaging the component.
Defects such as cracks, porosity, inclusions, voids, and lack of fusion in welds can be identified using radiographic testing.
Common standards include ASTM E94, ASTM E1742, ASTM E1032, and ASME Section V, which define procedures and quality requirements.
X-rays are generated electrically and provide high-resolution images, while gamma rays come from radioactive isotopes and are more suitable for thicker materials.
It ensures the internal integrity of materials and components, helping prevent failures and improving safety in critical applications such as pipelines, aerospace, and structural systems.
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