1. Remain calm, return to crank and try to re-crank to fully shielded position, paying close attention to WCRSM. If successful, meter will show substantial decrease.
2. If unsuccessful, move back to restricted area while maintaining constant visual of device. Re-check barriers to ensure 0.1 mSv/hr (10mR/hr) max. dose. Re-check signs to ensure access point is less than 2.5 mR/HR.
3. Stop & Think. Notify RSO to develop plan as per company radiation safety manual.
4. Assemble any other NEW’s and ensure TLD & audible alarms worn by everyone. Re-zero DRD and check batteries.
5. Follow principles of ALARA and assemble shielding equipment (tunnel, tongs, cutters etc.)
6. Dismantle crank assembly using tools and attempt to pull drive cable by hand to retract source to fully shielded position. If successful, WCRSM shows decrease.
7. If unsuccessful, use log handle tongs to disconnect removable tip from end of guide tube. Try pushing the source to dislodge it using plumbers wire.
8. Using crank assembly, retract source to fully shielded position and verify by noting decrease in WCRSM.
9. Complete full radiation survey with WCRSM to ensure radiation intensity does not exceed 2 mSv/hr (200 mR/hr at any point on exposure device.
10. Label and tag source guide tube, exposure device and crank assembly. The equipment must not be used until inspected by RSO and deemed acceptable.
11. RSO starts detailed report, listing personnel, TLD numbers, DRD readings and number of steps taken.
