Occupational Radiation Exposure at Commercial Nuclear Power Reactors and Other Facilities 2010, Prepared for the Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, May 2012 Page: 32 of 175
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Occupational Radiation Exposure at NRC Licensed Facilities
Annual Exposure Information for Fuel Cycle Licensees*
2008 Fuel Cycle 10 7,867 3,424 538 0.16 2,493 277 0.11 2,260 262 0.12
2009 Fuel Cycle 11 8,918 3,738 534 0.14 2,737 243 0.09 2,598 291 0.11
2010 Fuel Cycle 11
9,362 4,212 542 0.13 3,129 235 0.08 2,966 307 0.10
All data for this table includes program code 11400 for UF, Production Plants that have not been included in previous years for this table.
3.4 SUMMARY OF INTAKE
DATA BY LICENSEE CATEGORY
For each intake recorded, licensees are
required to list the radionuclide that was taken
into the body, pulmonary clearance class, intake
mode, and amount of the intake in microcuries.
An NRC Form 5, its equivalent paper
document or an electronic format containing
this information, is required to be completed
and submitted to NRC under 10 CFR 20.2206.
Tables 3.6 and 3.7 summarize the intake data
reported to NRC during 2010. The data are
categorized by licensee type and are listed in
order of radionuclide and pulmonary clearance
class or pulmonary solubility type. Table 3.6 lists
the intakes where the mode of intake into the
body was recorded as ingestion or other. These
other modes of intake can include absorption
through the skin and injection through a
puncture or wound.
Table 3.7 lists the intakes where the mode of
intake was inhalation from ambient airborne
radioactive material in the workplace. The
pulmonary clearance class or pulmonary
solubility type is recorded as D, W, Y (days,
weeks, years) or F, M, S (fast, medium, slow),
respectively, corresponding to the clearance
half-time from the pulmonary region of the
lung into the blood and gastrointestinal tract.
The pulmonary clearance class designation
depends on whether the licensee is using the
nomenclature in International Commission on
Radiological Protection (ICRP) Publication 30,
which is described in 10 CFR Part 20 (D, W,
Y) [Ref. 13] or ICRP Publication 68 (F, M, S)
[Ref. 14]. Licensees that use the methodology
described in ICRP Publication 30 utilize D, W,
and Y pulmonary classes to determine dose.
Licensees that use the methodology described
in ICRP Publication 68 utilize F, M, and S
pulmonary solubility types to determine dose.
Intake by Licensee Category and Radionuclide Mode of Intake-Ingestion and Other
Ingestion Fuel Fabrication 21210 U-234 1 3.57E-04 I
NOTE: This intake was a result of an inhalation of large particles that was more properly modeled as an ingestion.
Forty-Third Annual Report, 2010
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McCormick, D. E. Lewis D. A. Hagemeyer Y. U. Occupational Radiation Exposure at Commercial Nuclear Power Reactors and Other Facilities 2010, Prepared for the Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, May 2012, report, July 7, 2012; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc839694/m1/32/: accessed December 12, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.