Radiation Protection of a 3D Computer Tomography Scanning Workplace for Logs-A Case Study.

Area of Science:

• Medical Physics
• Radiation Protection
• Forestry Technology

Background:

• Computed Tomography (CT) scanners utilize ionizing radiation, posing potential health risks to operators and nearby individuals.
• Wood scanning applications, such as quality control and defect detection, increasingly employ CT technology.

Purpose of the Study:

• To quantify worker radiation exposure during the operation of a 3D CT wood scanner.
• To establish a radiation monitoring program for CT log scanning workplaces.
• To assess compliance with radiation protection standards.

Main Methods:

• Measurements of ambient dose equivalent rate (H˙*10) using a metrologically verified meter.
• Radiation leakage measurements were conducted at various sites around the CT scanner.
• Assessment of radiation levels before and after the installation of additional safety barriers.

Main Results:

• The MICROTEC 3D CT scanner, equipped with an X-ray lamp, is housed in a protective cabin.
• Following the implementation of enhanced safety barriers, radiation levels were found to comply with stringent radiation protection criteria.
• Worker exposure to ionizing radiation during CT scanner operation was determined to be no higher than natural background radiation levels.

Conclusions:

• The implemented safety measures effectively mitigate radiation risks associated with 3D CT wood scanning.
• The developed monitoring program ensures ongoing radiation safety for personnel in CT scanning environments.
• CT technology can be safely operated in wood industry settings with appropriate radiation protection protocols.