American Society for Nondestructive Testing (ASNT) Radiographic Testing Practice Test

The half-life of a Co-60 source is 5.3 years, which is significant in the context of radiographic testing and industrial applications. Cobalt-60 is widely used in various fields, including medicine and industry, mainly due to its radioactive properties and ability to emit gamma radiation. Understanding its half-life is crucial for managing safety protocols, storage, and disposal methods associated with radioactive isotopes.

The half-life indicates the time required for half of the radioactive material to decay into its stable form. In the case of Co-60, with a half-life of 5.3 years, it allows for predictable management of the isotope's activity over time. This information is particularly critical for those involved in radiographic testing, as it helps establish timelines for equipment use, exposure calculations, and regulatory compliance. Proper understanding of the half-life ensures effective planning around the isotopes' diminishing radiation levels, contributing to both safety and efficiency in applications.