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Time, Distance and ShieldingTime, distance, and shielding actions minimize your exposure to radiation in much the same way as they would to protect you against overexposure to the sun: 
Radiation EmergenciesIn a large scale radiological release, such as a nuclear power plant accident or terrorist incident, the following advice has been tested and proven to provide maximum protection. If a radiation emergency occurs, you can take actions to protect yourself, your loved ones and your pets: Get Inside, Stay Inside and Stay Tuned. Follow the advice of emergency responders and officials. Get InsideIn a radiation emergency you may be asked to get inside a building and take shelter for a period of time.
Stay InsideStaying inside will reduce your exposure to radiation.
Stay TunedEmergency officials are trained to respond to disaster situations and will provide specific actions to help keep people safe.
Where to go in a Radiation EmergencyView the Center for Disease Control and Prevention's video, “Where to Go in a Radiation Emergency” below, or visit the CDC Radiation Emergencies website for additional information. ResourcesLearn more about protecting yourself from radiation:
If you identify or come in contact with a radioactive source, locate and contact your state radiation control office. What are the three ways to control radiation exposure?Minimize time spent in areas with elevated radiation levels. Minimizing the exposure time reduces a worker's dose from the radiation source.. Maximize distance from source(s) of radiation. ... . Use shielding for radiation sources (i.e., placing an appropriate shield between source(s) of radiation and workers).. How can you prevent radiation exposure in the workplace?OSHA defines requirements for workplace radiation safety.
Supply appropriate personal monitoring equipment to employees at risk. Restrict entry to radiation areas and post warning signs. Label containers of radioactive materials and store them properly. Inspect and test systems that produce radiation.
What are the three types of radiation exposure?Regardless of where or how an ionizing radiation-related incident happens, three types of radiation-induced injury can occur—irradiation, external contamination with radioactive materials, and internal contamination with radioactive material, and incorporation of radioactive material.
What are the control of radiation?Keeping the time of exposure to a minimum, Maintaining distance from the source, When appropriate, placing a shield between yourself and the source, and. Protecting yourself against radioactive contamination by using proper protective clothing.
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