Related Organizations and Meetings American Association of Physicists in Medicine (AAPM) American Society for Testing and Materials (ASTM) Committee E61 on Radiation Processing Association for the Advancement of Medical Instrumentation (AAMI) Consultative Committee for Ionizing Radiation (CCRI) Flash Radiotherapy and Particle Therapy (FRPT) Health Physics Society (HPS) International Commission on Radiological Protection (ICRP) International Meeting on Radiation Processing (IMRP) National Council on Radiation Protection and Measurements (NCRP) Particle Therapy Co-Operative Group (PTCOG) Radiation Research Society (RRS) Society of Nuclear Medicine and Molecular Imaging (SNMMI)