contamination control
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
Contamination Control
Radiological Safety and ResponseRPT-243-PE-5
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
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
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
Outline
• Explanation• Mini-Lecture Dress-Out and Bagging
Techniques• Section 1 – Contaminated Area Entry and
Survey• Section 2 – Investigation for Contamination
Control Problems
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.
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.
PC Techniques
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
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.
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.
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
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.
Overlap Joints
Use tape only as directed by the Instructor
Dosimetry
Dosimetry
Transfer Across Boundary
Cuff the Bag
Extend Across the Boundary Tape
Place Item into the Bag From Inside the Area
Close the Bag
Close the Bag
Protect the Instruments
Section 1Contaminated Area Entry and Survey
Instructions
• Timed• Follow the Student Guide as a procedure.
Section 2Investigate Low Level Shoe Contaminations
Instructions
• Follow the Student Guide as your instruction.
Section 3Frisk, Complete Documentation
Instructions
• Follow the directions in the Student Guide
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