Texas Industrial Radiography Gamma Practice Test

Each utilization log must contain:

1. A decay curve

2. A calibration certificate

3. A leak test record

4. None of the above

The correct answer is: A decay curve

The correct answer regarding what each utilization log must contain is a decay curve. A decay curve is important in radiography as it provides vital information about the radioactive source's activity over time. This allows radiographers to assess the effectiveness and safety of using the source, as it indicates how the strength of the radioactive material diminishes through radioactive decay. Understanding this aspect is crucial for maintaining compliance with safety regulations and ensuring that radiation levels remain within acceptable limits for both personnel and the environment. While calibration certificates and leak test records are significant for ensuring equipment reliability and safety, they are not specifically mandated to be included in every utilization log. Calibration certificates verify that the radiographic equipment is functioning correctly and is producing accurate measurements, while leak test records confirm that no radioactive materials are leaking from the source. While these documents play vital roles in the operational and safety aspects of industrial radiography, they do not form a part of the required contents of a utilization log specifically focused on the decay characteristics of the radioactive sources used.