Direct action of radiation is the dominant process for
Correct Answer: Neutrons and alpha paicles
Description: Ionizing radiation acts by two methods: Direct and IndirectDirect action is radiation directly causing DNA damage; example: neutrons and alpha paiclesIndirect action is radiation causing free radical production which acts on DNA; example: photons and gamma raysReference: Khan Physics of Radiation therapy; 5th edition
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Radiology
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