What is the gamma factor of Co-60 at one meter?

The gamma factor is a crucial concept in radiography, as it quantifies the exposure rate of gamma radiation from a radioactive source per unit of its activity. For cobalt-60 (Co-60), the gamma factor at one meter is a specific value derived from empirical measurements and calculations based on the energy of the emitted gamma radiation.

Cobalt-60 emits gamma radiation with energy levels that are well-documented, and the gamma factor of 1.37 R/(h·Ci) at one meter is recognized as the standard for Co-60. This factor allows radiographers and health physicists to assess radiation exposure, ensuring safety and compliance with established guidelines during radiographic testing.

The value of 1.37 R/(h·Ci) indicates that for each curie of Co-60 activity, the dose rate will be 1.37 roentgens per hour at a distance of one meter from the source. This information is vital when planning radiographic operations involving Co-60, as it assists in determining the necessary protective measures and monitoring requirements to safeguard personnel and the surrounding environment from radiation exposure.