8. Critical organ:
Liver and spleen for inhalation.
Lower large intestine for ingestion.
9. Personnel monitoring: Dosimeter, finger rings - fecal
analysis may be used to determine uptake for weeks or
months after handling. Urinalysis is recommended from
4-24 hours after handling.
0.3 mCi (1 x 107 Bq) by inhalation.
0.8 mCi (3 x 107 Bq) by ingestion.
11. Shielding: 0.38 inch (9.7 mm) of lead is the half value
12. Special considerations:
Near an unshielded Fe-59 source, dose rates from
beta radiation can be much higher than dose rates
due to gamma radiation.
Avoid direct eye exposure.
Avoid skin exposure.
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