Daily Gamma Radiography Equipment Inspection: A Step-by-Step Guide

Daily equipment inspection is a crucial safety requirement before performing gamma radiography. Both Agreement State and NRC regulations mandate these inspections to prevent equipment issues and ensure safe operations. This guide outlines the proper inspection procedures for your radiography system and associated equipment.

System Components Requiring Inspection

• Gamma-Ray Projector
• Guide tube
• Remote Controls
• Associated equipment (e.g., MAG stands)

Inspection Frequency Requirements

• Minimum: Once daily per regulatory requirements
• Recommended: Additional inspection when:
  • Moving to a new job site
  • Transferring equipment between locations (point A to point B)
  • Setting up at a new position

Detailed Projector Inspection Process

1. Initial Safety Survey

• Verify radiation levels are less than 200 mR/hr on the surface
• Complete survey before beginning inspection

2. External Component Check

• Verify cover plates are in place
• Confirm connector nut is properly closed
• Inspect all company ID tags for presence and legibility

3. Nameplate Verification

Per ANSI N432 requirements, confirm legibility of:

• Proper shipping name
• Radioisotope information
• Notice to civil authorities
• Trefoil symbol
  • Must be magenta on yellow background
  • Should be visible from 3 feet away

4. Source Connection Inspection

• Unlock camera
• Operate selector ring
• Remove cover
• Visually inspect source connector for:
  • No flaring
  • No visible damage

5. No-Go Gauge Testing

Using the QSA Global No-Go gauge, check:

• Female gap
• Drive cable connection
• Gap between drive cable and female connector Note: If gauge passes through, this indicates a "No-Go" situation requiring service

6. Mechanical Operations Check

• Verify lock plunger operates freely
• Test selector ring functionality
• Inspect curl nut condition
• Confirm proper operation of all pins

7. Body Integrity Inspection

• Check for absence of:
  • Drilled holes
  • Excessive wear
  • Any damage penetrating the camera body
• Note: The projector body is a Type B device and must maintain integrity per certificate of compliance requirements

Why These Inspections Matter

Regular inspections help:

• Prevent source retrieval situations
• Identify potential issues before they cause problems
• Maintain regulatory compliance
• Ensure equipment meets Type B device requirements
• Preserve certificate of compliance validity

Documentation Requirements

• Record all inspections
• Note any deficiencies found
• Document corrective actions taken
• Maintain inspection records per regulatory requirements

Conclusion

Thorough daily inspections are essential for maintaining safe radiography operations and preventing equipment failures. By following these systematic inspection procedures, operators can identify potential issues early and ensure their equipment meets all regulatory requirements and safety standards.

Note: Always refer to your organization's specific procedures and applicable regulations for complete requirements. If equipment damage or wear is found, contact QSA Global, Inc. for OEM replacement parts or service.