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Contamination Control

Radiological Safety and Response RPT-243-PE-5. Contamination Control. Learning Outcomes Upon completion of this lesson, the student will be able to (cont’d): . Demonstrate the ability to perform a radiological survey including: Pre-survey preparations

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Contamination Control

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  1. Radiological Safety and Response RPT-243-PE-5 Contamination Control

  2. Learning OutcomesUpon completion of this lesson, the student will be able to (cont’d): • Demonstrate the ability to perform a radiological survey including: • Pre-survey preparations • Operational checks on survey instruments • General area radiation and contamination surveys • Work area radiation and contamination surveys • Counting loose surface contamination surveys using a GM frisking instrument converting cpm to dpm/100 cm2 and dpm/LAS

  3. Learning OutcomesUpon completion of this lesson, the student will be able to (cont’d): • Demonstrate the ability to perform a radiological survey including: • Surveying items for contamination with a GM frisking instrument • Documenting the results • Recommendations of posting adjustments based on the results

  4. Learning OutcomesUpon completion of this lesson, the student will be able to (cont’d): • Demonstrate acceptable behaviors when in and upon exiting a contamination area, including: • Proper wearing and removal of appropriate contamination control clothing • Proper contamination control techniques that minimize cross contamination • Proper use of the step-off pad for exiting and for removal of material • Demonstrate the proper use of personnel dosimetry

  5. Outline • Explanation • Mini-Lecture Dress-Out and Bagging Techniques • Section 1 – Contaminated Area Entry and Survey • Section 2 – Investigation for Contamination Control Problems

  6. Explanation • The same team assignments made in PE-1 will continue into this PE. • This PE has two sections. • The first section involves the teams entering a contaminated area and performing a contamination survey. • The second section involves the teams visually inspection an area to determine contamination control problems.

  7. Explanation • The teams will be held accountable for the use of proper three-part communication and human performance tools during the PE. • The exercise will start with a mini-lecture on proper PC use and bagging techniques for contamination control. • A short briefing for the scenario. • At the conclusion of the practical portion, a team debrief may be held if time permits.

  8. PC Techniques

  9. In General… • Each station issues procedures that describe the details of their personal protective clothing standards. • Other techniques may be stipulated through training, department policy or “standing orders” such as: • When disposable PCs are required or • Alternate dressing and undressing techniques developed locally • The use of tape vs. launderable items

  10. The ATC-RPT Standard • For the purposes of our PEs, the PC standards that will be used are shown in the following pictures and as described here: • Unless specifically directed, joints are not taped • The wet paint technique is observed for SOP barrier ropes and tape • All items leaving a posted contaminated area must be surveyed clean or bagged – except an individual’s EAD. • Cuff all bags for transferring at SOPs.

  11. The ATC-RPT Standard • For the purposes of our PEs, the PC standards that will be used are shown in the following pictures and as described here: • The EAD is to be worn in a whirl pack in the chest pocket of the PC coveralls • The TLD and security badge are worn under the coveralls but within one hand’s breadth of the EAD.

  12. The ATC-RPT Standard • For the purposes of our PEs, the PC standards that will be used are shown in the following pictures and as described here: • Upon exiting the Contaminated Area: • Before removing the gloves, squeeze the EAD out of the whirl-pack onto the edge of the SOP • Upon stepping on the SOP, place the EAD on the lanyard with the TLD • Frisk the combo when a hand, foot, and face frisk is done

  13. The ATC-RPT Standard • Portable instrumentation taken into posted Contaminated Areas shall be wrapped or bagged in clear plastic to prevent cross contamination. • The Instrument wrapping may be wiped with a Maslin upon removal from the CA.

  14. Overlap Joints Use tape only as directed by the Instructor

  15. Dosimetry

  16. Dosimetry

  17. Transfer Across Boundary

  18. Cuff the Bag

  19. Extend Across the Boundary Tape

  20. Place Item into the Bag From Inside the Area

  21. Close the Bag

  22. Close the Bag

  23. Protect the Instruments

  24. Section 1Contaminated Area Entry and Survey

  25. Instructions • Timed • Follow the Student Guide as a procedure.

  26. Section 2Investigate Low Level Shoe Contaminations

  27. Instructions • Follow the Student Guide as your instruction.

  28. Section 3Frisk, Complete Documentation

  29. Instructions • Follow the directions in the Student Guide

  30. What Are Your Questions ?

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