"The tissue weighting factor (WT) is a measure of relative contribution of an organ or tissue to the total health detriment due to stochastic effects resulting from a uniform irradiation of the entire body 1. It accounts for the variable sensitivity to ionising radiation and size of a given organ or tissue."
"WT = 0.12 (each of following six): stomach, colon, lung, bone marrow (red), breast, and remainder tissues*"
"WT = 0.08: gonads"
"WT = 0.04 (each of following four): urinary bladder, oesophagus, liver, thyroid"
"WT = 0.01 (each of following four): bone surface, skin, brain, salivary glands"
"In 2007, the International Commission on Radiological Protection (ICRP) published a set of tissue weighting factors 1 as below:"
"WT = 0.12 (each of following six): stomach, colon, lung, bone marrow (red), breast, and remainder tissues*"
"WT = 0.08: gonads"
"WT = 0.04 (each of following four): urinary bladder, oesophagus, liver, thyroid"
"WT = 0.01 (each of following four): bone surface, skin, brain, salivary glands"
"*Remainder tissues (13 organs collectively): adrenals, extrathoracic region, gallbladder, heart, kidney, lymph nodes, muscle, oral mucosa, pancreas, small intestine, spleen, thymus, and uterus/cervix (♀) or prostate (♂)."