More than one dosimeter

[Thomas Graham <graham@ccmail.nevada.edu>]

Has anyone looked at the use of more than one dosimeter under the requirements 
of the "new" 10CFR20.1201(c) considering highly nonuniform fields?  I am 
interested in criteria for "highly nonuniform fields" in medical radiography and
nuclear medicine.  Reg. Guide 8.34 regulatory position 2.2 states that an 
acceptable alternative is to use more than one dosimeter to separately track 
doses to different parts of the whole body.  I read this as an alternative to 
conducting an evaluation of the field as in postexposure evaluations.  I would 
not like to see this interpreted as a requirement to use more than one badge 
when exposures are generally below the "investigational level" but non-uniform.