- Radiation: Gamma 511 e (194 abundance; positron annihilation radiation)
- Betas: 634 keV (97% abundance) (Positron)
- Physical: 1.83 hours
- Biological: ~ 6 hours
- Effective: ~1.4 days
- Gamma exposure rate from 1 mCi point source - unshielded
- 1 cm - 6960 mr/hr
- 5 cm - 278 mr/hr
- 10 cm - 69.5 mr/hr
- 100 cm - 0.7 mr/hr
External, Skin and Eye Hazard
- Plan experiments to minimize external exposure by reducing exposure time, using shielding and increasing your distance from the radiation source.
- Critical Organ: Lung ( Inhalation) Stomach wall (ingestion)
- Gamma - 6 mm of lead will reduce exposure intensity by 50%
- Beta - 177 mm plastic
- Where lab coats and disposable gloves.
- Whole body and ring dosimeters are required.
- Store F18 behind lead shielding.
- Plan experiments to minimize external exposure by reducing exposure time, using shielding and increasing distance.