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The use of radiation in the healing arts did not begin until the discovery of x-rays in what year? 1895 What is defined as the effective measures employed by radiation workers to safeguard patients, personnel, and general public from unnecessary exposure to ionizing radiation? Radiation protection The need for safeguarding against significant and continuing radiation exposure is based on evidence of harmful _______________. Biologic effects What is the degree to which the diagnostic study accurately reveals the presence or absence of disease in the patient? Diagnostic efficacy The philosophy of as low as reasonably achievable (ALARA) should be what part of every health care facility's personnel radiation control program? Main What are the three basic principles of radiation protection? Time, distance and shielding Who is responsible for providing the necessary resources and appropriate environment in which to execute an ALARA program? Employer In a hospital setting who is expressly charged by the administration to be directly responsible for the AL
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