A process or methodology that has undergone repeated unsuccessful evaluations in the context of gamma-ray emissions and is subsequently deemed exempt from further consideration due to lacking significant quantities of such radiation. Consider, for example, a shielding material repeatedly tested and found insufficient for blocking a particular spectrum of gamma radiation, leading to its removal from the options for that specific application.
Its significance lies in resource allocation and efficiency within radiation-related fields. By identifying and eliminating less promising avenues early on, efforts can be focused on more viable solutions. Historically, this approach has been instrumental in streamlining research and development in areas such as nuclear safety, medical imaging, and industrial radiography, preventing the continuous pursuit of unproductive strategies.