In Vivo - Data Entry |
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USTUR health physics database |
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The In Vivo tab stores data associated with in vivo (external) measurements. The distinction between contamination and in vivo measurements is the intent. A survey to estimate external activity is considered a contamination measurement, but an extended count that quantifies internally deposited activity (i.e. for a wound) is recorded as an in vivo measurement.
Data Entry
- Examples:
-
A thyroid count is recorded as a neck count or the head (skull) is counted in order to determine skeletal activity.
- Data Entry:
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Location – Enter the organ or part of the body that the in vivo measurement was trying to count (i.e. the above examples would be recorded as 'Thyroid' and 'Bone').
Detector Position – Describe where the detector was positioned on the body during the in vivo count using the language in the hard file (i.e. the above examples would be recorded as 'neck count' and 'head count').
Contaminant(s) – Select the contaminant (radionuclide or type of radiation) or mixture from the drop down list.
Count Start Time – Enter the time that the in vivo count was started.
Reported Value – Enter the in vivo counting results as they are reported in the hard file (do not perform unit conversions).
Reported Net Activity Uncert – Enter uncertainty on activity as it appears in the hard file (do not perform unit conversions).
Reported Net Activity MDA – Enter activity’s minimum detectable activity as it appears in the hard file (do not perform unit conversions).
Reported Net Activity DL – Enter activity’s Decision Level as it appears in the hard file (do not perform unit conversions).
Reported Net Activity Unit – Select the unit used to report the activity, uncertainty, MDA, and DL in the hard file.
Reported <MDA – Check this box if the hard file reports that activity levels were less than the minimum detectable activity. Background activities are to be entered as having 0 activity and the <MDA checkbox is to be checked. If one record reports a sample to have been at background levels and another reports an activity that is greater than zero, enter the numerical value as the reported value, check the 'Reported <MDA' checkbox, and comment on this observation in the 'Comments' field.
Count Length – Enter the in vivo counting time in minutes.
Comments – Enter any additional pertinent information here.
Laboratory/Detector – Indicate the laboratory where sample was analyzed and/or the detector(s) used, if known.
Source – Enter of source of in vivo data as: document date – document name (i.e. 5/22/79 - internal dosimetry memorandum from site health physicist). Do not include specific personnel or registrant names.
This page was last updated on May 22, 2008. usturwebmaster@tricity.wsu.edu
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