Lead Shielding Testing

Assurance vs. Quality –
The Two Steps of Shielding Verification

Proper lead shielding is essential to protect staff, patients, and the public from unnecessary radiation exposure.

XRCT Limited provides a complete, independent verification process to ensure your facility meets both safety and regulatory requirements before and after construction.

Step 1

Assurance

Visual Inspection During Construction

Our staff conduct an on-site inspection during the installation phase to ensure shielding materials are properly installed according to your plans.

    • Verification of lead thickness, overlap, and continuity

    • Inspection of penetrations, doors, windows, and frames

    • Documentation of installation quality and compliance

    • A detailed report confirming readiness for drywall installation

Step 2

Quality

Post-Construction Integrity Testing

Once installation is complete, our staff perform quantitative integrity testing to confirm that the shielding performs as designed under real conditions.

    • Quantitative radiation
      measurements at all critical points

    • Identification of leaks, weak points, or areas of non-conformance

    • Verification that shielding is installed consistently with the approved plan

    • A comprehensive report suitable for submission to regulatory authorities

Additional Lead Shielding Verification Services

Shielding Adequacy Evaluation

Beyond integrity testing, XRCT Limited provides a detailed shielding adequacy assessment, involving precise measurements of ambient dose rates throughout the facility.

This service ensures that staff and patients remain protected in all occupied areas adjacent to the radiation source.

  Applications include:

  • Verification of effective shielding in clinical and control areas

  • Measurement of dose rates under typical operating conditions

  • Confirmation that exposure levels meet regulatory and design criteria

Non-Destructive Shielding Thickness Testing

When as-built documentation is missing or uncertain, XRCT Limited can determine the equivalent lead thickness of walls, doors, and windows without damaging existing structures.

Using a calibrated radioactive source and radiation detectors, we measure the attenuation properties of each barrier to accurately quantify shielding performance.

This method provides reliable data for compliance verification, renovations, or facility upgrades where drawings and specifications are unavailable.

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