Table 2.

Mean alpha dose rates in tissues of the RES and in the kidney of patients with long-term burdens of intravascularly injected Thorotrast (Kaul and Noffz 1978)

Organ	Injected amount (mL)	Fa	Mean tissue dose rate
			(rad year−1)	(Gy year−1)
Liver	10	0.852	12.5	0.125
	30	0.648	28.4	0.284
	50	0.522	38.1	0.381
	100	0.379	55.4	0.554
Spleen	10	0.498	41.5	0.415
	30	0.321	80.3	0.803
	50	0.285	118.8	1.188
	100	0.227	189.2	1.892
Red bone marrow	10	0.972	3.8	0.038
	30	0.919	10.7	0.107
	50	0.871	16.8	0.168
	100	0.766	29.6	0.296
Kidneys	10	1	0.17	0.0017

^aFraction of emitted α-energy escaping the aggregates