Health physics
（重定向自Health Physicist）
![1947 Oak Ridge National Laboratory poster.](/Images/godic/202501/17/Hppost32641.jpg")
![External dose quantities used in radiation protection and dosimetry](/Images/godic/202501/17/Dose_quantities_and_units2642.png")
![Graphic showing relationship of SI radiation dose units](/Images/godic/202501/17/SI_Radiation_dose_units2642.png")
Health physics or The Physics of Radiation Protection is the science concerned with the recognition, evaluation, and control of health hazards to permit the safe use and application of ionizing radiation. Health physics professionals promote excellence in the science and practice of radiation protection and safety. Health physicists principally work at facilities where radionuclides or ionizing radiation are used or produced; such as medical institutions, government laboratories, academic and research institutions, nuclear power plants, regulatory agencies and manufacturing plants.