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ES&H
Manual Radiation Control Supplement |
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Appendix 3C Guidelines for Personnel
Monitoring with Hand-Held Survey Instruments |
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General Requirements
1.
Verify that the
instrument is in service, set to the proper scale, and the audio output can be
heard during monitoring.
2.
Hold the probe less than
1/2 inch from surface being surveyed for beta and gamma contamination and
approximately 1/4 inch for alpha contamination.
3.
Move the probe slowly
over surface, approximately 2 inches per second.
4.
If the count rate
increases during monitoring, pause for 5 to 10 seconds over the area to provide
adequate time for instrument response.
5.
If the count rate
increases to a value greater than a pre-established contamination limit or the
instrument alarms, remain in the area and notify Radiological Control
personnel.
6. The whole body monitor should take at least two to three minutes.
Performance
of Monitoring:
1.
Monitor the hands before
picking up the probe.
2.
Monitor in the following
order:
a.
Head (pause at mouth and
nose for approximately 5 seconds)
b.
Neck and shoulders
c.
Arms (pause at each
elbow)
d.
Chest and abdomen
e.
Back, hips and seat of
pants
f.
Legs (pause at each
knee)
g.
Shoe tops
h.
Shoe bottoms (pause at
sole and heel)
i.
Personnel and
supplemental dosimeters.
3. Return the probe to its holder and leave the area. The probe should be placed on the side or
face up to allow the next person to monitor their hands before handling the
probe.
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ISSUING
AUTHORITY |
CHAPTER
AUTHOR |
APPROVAL
DATE |
EFFECTIVE
DATE |
EXPIRATION
DATE |
REV. |
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RadCon Dept |
07/01/10 |
07/01/10 |
07/01/13 |
4 |
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