Radiologic Sciences Staffing Surveys are conducted every two years by the American Society of Radiologic Technologists (ASRT). The staffing survey of top radiology department managers (July 2019) identified staffing levels. Department Services are outlined and described in the report issued Sept. 2019. An estimated 4% response rate. A similar survey was conducted in March 2020 of Radiation Therapy staff. It had a 5% response rate. Updated reports for 2021 and 2022 are available for a fee.