What does tissue wighting factor less value mean in radiation protection?
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The tissue weighting factor is a relative measure of the risk of stochastic effects that might result from irradiation of that specific tissue.
It accounts for the variable radiosensitivities of organs and tissues in the body to ionising radiation.
Based on the values of tissue weighting factors, tissues are grouped into following to assess the carcinogenic risk:
high risk (WT = 0.12): stomach, colon, lung, red bone marrow
moderate risk (WT = 0.05): urinary bladder, esophagus, breast, liver, thyroid
low risk (WT = 0.01): bone surface, skin
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