Re: FW: X-Ray Radiation and Personnel Monitoring

["Sandy Perle" <sandyfl@earthlink.net>]

Personnel Monitoring is only required as follows:

(1) If under quarterly limits, the requirement is that the dose is 
expected to exceed 25% of the regulatory limit (1.25 rem). Therefore, 
if the individual is expected to exceed 312 mrem/qtr, monitoring is 
required.

(2) If under annual limits, the requirement is that the dose is 
expected to exceed 10% of the regulatory limit (5 rem). Therefore, if 
the individual is expected to exceed 500 mrem/yr, monitoring is 
required.

To provide monitoring at levels below this level is a facility 
decision, based on many factors, such as potential litigation 
concerns, the student's attitudes and concerns, etc. This is a 
decision that each facility must make.

Area badges could be considered, and a single badge for a group could 
be considered. Your task would be to correlate the dose back to an 
individual, and be able to fend off adversity when there is 
controversy stating that THIS specific dose can NOT be correlated 
directly to a SPECIFIC individual.

You also need to consider the dose rate from the units where the 
students are working. If there is a high potential dose, and the 
anticipated annual or quarterly dose is expected to be below required 
monitoring levels, you need to consider the potential dose from the 
unit,, and potential problems.

Lots of factors to consider.



Sandy Perle
E-Mail: sandyfl@earthlink.net 
Personal Website: http://www.geocities.com/capecanaveral/1205

"The object of opening the mind, as of opening 
the mouth, is to close it again on something solid"
              - G. K. Chesterton -
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