What is one of the advantages of using gamma rays over X-ray sources in radiography?

Using gamma rays in radiography has the advantage of portability. Gamma ray sources, such as isotopes, are compact and can be easily transported, allowing for fieldwork and inspections in locations that may not have access to traditional X-ray equipment. This portability is particularly beneficial in industrial applications, where inspections may need to be performed on-site, away from laboratory settings.

On the other hand, cost-effectiveness can vary based on the specific circumstances, and both gamma ray and X-ray equipment can have their own economic considerations. Greater resolution is generally associated with X-ray systems, which provide superior image quality due to their ability to be finely tuned for specific applications. Lastly, while gamma rays can deliver higher radiation doses depending on the source and its application, this is not an advantage but rather a consideration regarding safety and exposure. Thus, the primary advantage associated with gamma rays is indeed their portability, facilitating convenient use in various scenarios.