1. Contamination Control
Radiological Safety and Response
RPT-243-PE-5
Contamination Control
RPT-243-PE-5 Contamination Control
ACAD : none
DOE: none
Duration: 2.5 hour
Material Resources Needed: Count Down ALARM Clock PPT; Access to Room 508 and 509; 1 copy of the Previous General Area Survey of 509 for each team; 1 copy of RWP-201X-243-5; 1 copy of Student Guide for each team; one INSTRUCTOR GUIDE for RPT-243-PE-5; TEAM Dose Tracking Form;
Equipment/Supplies: Overhead display for PowerPoint; Survey meter for each team; Frisker set-up at RCS exit; dosimetry and badge for each team member going into RCA; stanchions, rope, posting material, side-cutters.
Assessment/Evaluation: Performance tasks will be assessed here – cognitive objectives will be assessed in examination number 2. Formal performance assessment is completed at the conclusion of the course.
References Used in Development:
Basic Radiation Protection Technology, 5th edition, Gollnick; ISBN
Nuclides and Isotopes/Chart of the Nuclides, 16th edition, Baum, Knox, Miller; ASIN: B000BUNFS8
10CFR20
10CFR835

2. 11/12/2018
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
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. 11/12/2018
Learning Outcomes Upon 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. 11/12/2018
Learning Outcomes Upon 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
Time should not be as critical; however, you must still ensure that teams do not prolong the tasks. Use the PPT timer alarm. It will help keep you on track to ensure the PE can be completed. It also permits the illustration of time pressure on task performance. However, ensure you stress that time pressure should never take priority over doing the job safely.

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.
Because all RPT Lab periods are limited to 18 students, for a full lab period, you should have a maximum of 4 – 4 person teams and 1 – 2 person team.

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 1 Contaminated Area Entry and Survey

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

26. Section 2 Investigate Low Level Shoe Contaminations

27. Instructions
Follow the Student Guide as your instruction.

28. Section 3 Frisk, Complete Documentation

29. Instructions
Follow the directions in the Student Guide

30. What Are Your Questions ?