What significant contribution did Dr. William Rollins make to radiation safety?

Dr. William Rollins made a pivotal contribution to radiation safety by creating the first collimator, a device that helps focus the beam of radiation and minimizes unnecessary exposure to the patient and healthcare workers. This innovation was essential in the development of safer radiographic practices, as it enabled more precise imaging and reduced the scattering of radiation, thus protecting individuals from the harmful effects of x-ray exposure. Additionally, Rollins was proactive in issuing warnings about the dangers of radiation, highlighting the importance of safety measures in the use of x-ray technology. His work laid foundational principles in the field of radiation safety that are still relevant today.