TABLE 4.

²²³Ra-Dichloride Dosimetry (24)

Organ	Absorbed dose (Gy/Bq)		Dose coefficient (Gy/Bq)	Contribution of β/γ dose to total dose (%)
Organ	α-particles (high LET)	β/γ dose (low LET)	Dose coefficient (Gy/Bq)	Contribution of β/γ dose to total dose (%)
Adrenals	3.2E–09	2.4E–10	1.6E–08	7
Bladder wall	3.3E–09	4.1E–10	1.7E–08	11
Bone endosteum	3.3E–09	1.1E–10	3.8E–06	1
Brain	3.2E–09	1.8E–10	1.6E–08	5
Breast	3.2E–09	1.6–10	1.6E–08	5
Gastrointestinal tract
Esophagus	3.2E–09	1.7E–10	1.6E–08	5
Stomach wall	3.2E–09	3.9E–10	1.6E–08	6
Small intestine wall	3.2E–09	3.9E–10	1.7E–08	11
Upper large intestine wall	6.8E–09	1.4E–08	4.8E–08	67
Lower large intestine wall	1.3E–08	4.0E–08	1.1E–07	75
Colon	9.5E–09	2.5E–08	7.3E–08	72
Kidneys	3.4E–09	2.4E–10	1.7E–08	7
Liver	3.6E–09	1.5E–10	1.8E–08	4
Muscle	3.2E–09	2.0E–10	1.6E–08	6
Pancreas	3.2E–09	2.2E–10	1.6E–08	6
Red marrow	7.2E–08	5.5E–09	3.7E–07	7
Respiratory tract
Airways	3.2E–09	1.7E–10	1.6E–08	5
Lungs	3.2E–09	1.9E–10	1.6E–08	6
Skin	3.2E–09	1.6E–10	1.6E–08	5
Spleen	3.2E–09	1.9E–10	1.6E–08	6
Testes	3.2E–09	1.8E–10	1.6E–08	5
Thymus	3.2E–09	1.7E–10	1.6E–08	5
Thyroid	3.2E–09	1.7E–10	1.6E–08	8

LET = linear energy transfer.