ACADs (08-006) Covered Keywords

1. Radioactive Material Handling ACADs (08-006) Covered Keywords Interpersonal Relations, Pre-job preparation, Area controls, Special Considerations, Airborne Radioactivity, Airborne Controls, Airborne Monitoring, Protective Clothing, Respiratory Protection, Dosimetry, Work Documents, Radioactive Material Handling, Radioactive Waste, Shipping Radioactive Material

2. Overview • Interpersonal Relations • Pre-job preparation • Area controls • work Coverage • Duties and Responsibilities • General controls

3. Overview • Special Considerations • Airborne Radioactivity • Airborne Controls • Airborne Monitoring • Protective Clothing • Respiratory Protection • Dosimetry

4. Overview • Work Documents • Radioactive Material Handling • Radioactive Waste • Shipping Radioactive Material

5. Interpersonal Relations • Interpersonal Relations • Book Report: Dale Carnegie How to Win Friends and Influence People

6. Interpersonal Relations • Discuss and demonstrate the interpersonal skills required for successful performance of duties in the following situations: • Job coverage • Control Point • Control Point • Satellite control point • Dealing with problems during work coverage

7. Pre-Job Preparation • Evaluate the use of temporary shielding for specific jobs applications. • Shielding for different radiation types • Alpha • Paper • Layer of dead skin

8. Pre-Job Preparation • Beta • Low Z-number material • Plastic • Aluminum

9. Pre-Job Preparation • Gamma • High Z-Number material • Lead • Steel • Depleted Uranium

10. Pre-Job Preparation • Neutron • Hydrogenous material • Water • Oil • Neutron absorbers • Boron • Borated materials

11. Pre-Job Preparation • Scenario • Job: QA walkthrough and inspection of area housekeeping and cleanliness. Includes inspection of several rooms including one room posted High Radiation Area. The inspection of the valve room is expected to take less than five minutes.

12. Pre-Job Preparation • Room: Remotely operated valve in the middle of an 8’x8’ room has a contact dose rate of 500 mrem/hour and a 30-cm dose rate of 150 mrem/hour.

13. Pre-Job Preparation • Should we consider shielding the valve for the inspection? • Why or why not?

14. Homework

16. Pre-Job Preparation • Job: Disassemble pump in a High Radiation Area pump room. At any given time there will be up to five people in the room. The job is expected to take approximately two weeks from start to finish, with approximately 400 man-hours spent in the room.

17. Pre-Job Preparation • Room: contains four pumps and associated piping. Several hot spots from 300 mrem/hour to 2000 mrem/hour.

18. Pre-Job Preparation • Should we consider shielding the hot spots? • What factors need to be considered?

19. Pre-Job Preparation • Considerations: • Structural strength of the piping where shielding will be hung • Do we shield all the hot spots? • Just the hottest ones? • Just the ones closest to the work? • Is shadow shielding possible? • Are there other methods for reducing exposure that might work for this evolution?

20. Pre-Job Preparation • Describe the in-process radiological surveys to be performed under various radiological conditions, including radiation surveys, contamination surveys, and airborne radioactivity surveys.

21. Radiation Surveys • Radiation surveys • Establishing area conditions and low-dose standby areas • Movement of sources • Concentration of sources • Operating valves • Entry into previously unsurveyed areas

22. Where to Survey • Components being worked on • Nearby piping and components • Locations where workers are positioned • Path to and from the work site • Low dose areas • Hot spots • Potentially transient dose rate areas (resin lines, drain lines, movement of sources).

24. Contamination Surveys • Opening systems • Exposing surfaces • Entering unsurveyed areas

25. Where to Survey • Surfaces being worked on • Nearby piping and components • Locations where workers are positioned • Path to and from the work site • Newly exposed surfaces • Potentially contaminated surfaces

26. Air Sampling • Work in high contamination • Work with the potential to cause airborne radioactivity • Other work in the area or plant conditions may cause airborne radioactivity • Verification (Negative data)

27. Where to Survey • Breathing zone • Downwind of source • General area • Outside of posted area to verify posting

28. UnexpectedLevels • Higher than expected dose rates • Higher than expected contamination levels

29. What do you do? • Reevaluate • Dosimetry • Controls • Shielding • Survey frequencies • PPE requirements

30. What Else? • Review available dose of crew • Consider stopping the job • May need a new RWP • Resurvey with a different instrument

31. Context

32. Area Controls • Discuss proper job coverage and radiological protection measures for high-exposure jobs and potential high-exposure jobs, such as the following:

33. Area Controls • Steam generator maintenance (PWR) • Reactor coolant pump seal replacement (PWR) • Reactor water cleanup pump maintenance (BWR) • Recirculation pump seal replacement (BWR)

34. Area Controls • Reactor internal pump maintenance (ABWR) • Control rod driver maintenance (BWR and ABWR) • Diving operations • Spent resin transfer operations

35. Area Controls • Spent fuel movements • In-core detector maintenance • Work in or around the spent fuel pool

36. Area Controls • Describe actions required when personnel leave a work site upon completion of radiological work, such as:

37. Area Controls • Packaging, marking, and transferring contaminated tools, equipment, and trash • Removing protective clothing • Monitoring for contamination • Returning special dosimetry • Signing out of the RWP • Notifying radiological protections personnel of job completion

38. Context

39. Work Coverage • Discuss plant access control procedures for entry into the following for the performance of work:

40. Work Coverage • Controlled Area • Radiological Restricted Area • Restricted Area • Radiation Area

41. Work Coverage • High radiation area • Very high radiation area • Contaminated area • Airborne radioactivity area

42. Work Coverage • Discuss requirements for conducting prejob briefings for radiological work • Include discussion of the following:

43. Work Coverage • When are briefings required • Frequency of briefings for ongoing work • Required attendance (who has to be there?) • Items to be dicussed • Importance of resolving all questions

44. Work Coverage • Explain actions to be taken if work scope changes from RWP.

45. Work Coverage • Explain actions to be taken if work location differs from RWP.

46. Work Coverage • Explain the importance of Stop Work Authority. • Describe the appropriate use of Stop Work Authority

47. Context

48. Duties and Responsibilities • Describe the methods used to invoke radiological protection requirements, such as

49. Duties and Responsibilities • Steps in written procedures • Radiation work permits • Verbal instructions from the supervisor • Verbal instruction from radiological protection personnel.

50. Duties and Responsibilities • Explain the responsibilities of the following personnel regarding specifying, complying with, monitoring, and enforcing radiological protection and ALARA requirements: