STE #6 Flashcards
Which of the following should be classified as a Personal Contamination Event (PCE)
Contamination of 200 ccpm on skin
When an individual alarms a contamination monitor the first time, which of the following actions should initially be taken?
- Note the location of the alarm and the activity,
and 2.Instruct the individual to re-monitor
After a valid contamination alarm, in a background area of ____________cpm or less, using a frisker or equivalent instrument, and maintaining a detector to surface distance of ____________ or less, slowly survey the individual.
200 cpm, ½ inch
Which of the following is a method to determine if an individual should be surveyed for potential alpha contamination.
Individual was working in an area posted for controlling alpha contamination, e.g. Alpha Level 2 or Alpha Level 3 areas.
For which of the following conditions are Personal Contamination Events (PCEs) not required to be documented?
- Activity was caused by a medical radioisotope,
- Activity was caused by noble gas,
and 3. Activity was 80 ccpm on clothing
Fire fighters responded to a fire inside a contaminated area. Due to the emergency conditions the fire fighters did not use any protective clothing other than their fire protection gear. Upon exit from the RCA the following conditions were detected; 400 ccpm on individual firefighting gloves and 200 ccpm on firefighting coat. This event should be classified as a Personal Contamination Event (PCE). True or False?
False
After surveying an individual for contamination following a validated alarm, an individual was found to have 60,000 ccpm. This should be classified as a level ______ PCE.
Level 3
Discrete Radioactive Particles (DPRs) can deliver a large dose to a small area and shall be captured and removed as quickly as possible. Discrete particles are greater than ___________ ccpm.
50,000
If a discrete particle is indicated on an individual’s clothing, which of the following actions should be taken.
- Document the survey results using a frisker, or if necessary, an open window ion chamber reading,
and 2. If particle was found on clothing, survey and document the reading obtained on top and underneath the clothing.
Which of the following conditions require notification of an RP Supervisor?
Individual has a 1 mrad/hr DPR on bottom of shoe
Approximately equal number of counts on the front and back chest area could be indication of internal contamination. True or False?
True
If internal contamination is suspected, prior to sending an individual for a whole body count, which of the following actions should be completed.
Have the individual shower and don a paper suit prior to reporting for whole body counting.
Folds of clothing, layers of clothing, or clothing saturated with sweat, can act as shielding and reduce the counts seen during surveying. True or False?
True
A Personal Contamination Event (PCE) that had a reading of 6000 ccpm when contamination was initially found on the individuals scrub top. Once the clothing was removed the reading was < 100 ccpm. This PCE should be classified as…
Level 2
Naturally occurring radioactive materials have a half-life less than ______minutes.
30 minutes
Individual can be conditionally released with radon or noble gas under which of the following conditions
- RPM/Designee has approved the conditional release,
- Individual was not working in a posted contaminated area,
and 3. Individual was instructed to re-monitor prior to exiting site
An individual was monitored in a beta personnel monitor and passed with no alarms, however, the individual cannot pass a gamma monitor. This could be an indication of which of the following.
Internal contamination
Which of the following actions should be taken if multiple contamination events occur at the same time.
- Maintain contamination control by keeping individuals suspected of contamination segregated in one area. Provide instructions to individuals on where they should be located and why.
- Maintain the clean area clean, perform frequent surveys and decon as needed.
and 3. If internal contamination is suspected then notify RP Supervision so that air samples can be obtained from the work area.
Which of the following actions should be taken as soon as possible if contamination is found on an individual’s shoes?
Survey from the work location to monitoring location, to identify and control the spread of contamination.
A level 3 PCE is which of the following
> 50,000 ccpm
The RP Technician should ask questions of the individual to determine the cause of the PCE. Asking if there has been a change in work scope or work process, use of a different tool, or opening a system could obtain helpful information in determining the cause. True or False?
True
When dealing with a contaminated individual, only an ANSI qualified individual can perform which of the following.
Perform decontamination activities
It is important to always communicate professionally with individuals who have alarmed a monitor. Which of the following terms/statements is a good example of how to communicate with a worker.
Frisking has indicated you have 200 ccpm on the outside of your scrubs, just below your knee.
Gloves should always be worn while surveying an individual who has alarmed a contamination monitor, or when assisting with any decontamination efforts. True or False?
True
Dose assessment should be performed if which of the following criteria is met?
Skin contamination of 250,000 ccpm-hours
