| (104) Occupational dose--The dose received by an individual
in the course of employment in which the individual's assigned duties
involve exposure to radiation and/or to radioactive material from
licensed and unlicensed sources of radiation, whether in the possession
of the licensee or other person. Occupational dose does not include
dose received from background radiation, as a patient from medical
practices, from voluntary participation in medical research programs,
or as a member of the public.
(105) Oil and gas naturally occurring radioactive material
(NORM) waste--NORM waste that constitutes, is contained in, or has
contaminated oil and gas waste as that term is defined in the Texas
Natural Resources Code, §91.1011.
(106) On-site--The same or geographically contiguous
property that may be divided by public or private rights-of-way, provided
the entrance and exit between the properties is at a cross-roads intersection,
and access is by crossing, as opposed to going along, the right-of-way.
Noncontiguous properties owned by the same person but connected by
a right-of-way that the property owner controls and to which the public
does not have access, is also considered on-site property.
(107) Particle accelerator--Any machine capable of
accelerating electrons, protons, deuterons, or other charged particles
in a vacuum and discharging the resultant particulate or other associated
radiation at energies usually in excess of 1 million electron volts
(MeV).
(108) Party state--Any state that has become a party
to the compact in accordance with Article VII of the Texas Low-Level
Radioactive Waste Disposal Compact, established under Texas Health
and Safety Code, §403.006.
(109) Perpetual care account--The Environmental Radiation
and Perpetual Care Account as defined in this section.
(110) Personnel monitoring equipment--See "Individual
monitoring devices."
(111) Planned special exposure--An infrequent exposure
to radiation, separate from and in addition to the annual occupational
dose limits.
(112) Positive pressure respirator--A respirator in
which the pressure inside the respiratory inlet covering exceeds the
ambient air pressure outside the respirator.
(113) Powered air-purifying respirator (PAPR)--An air-purifying
respirator that uses a blower to force the ambient air through air-purifying
elements to the inlet covering.
(114) Pressure demand respirator--A positive pressure
atmosphere-supplying respirator that admits breathing air to the facepiece
when the positive pressure is reduced inside the facepiece by inhalation.
(115) Principal activities--Activities authorized by
the license which are essential to achieving the purpose(s) for which
the license is issued or amended. Storage during which no licensed
material is accessed for use or disposal and activities incidental
to decontamination or decommissioning are not principal activities.
(116) Public dose--The dose received by a member of
the public from exposure to radiation and/or radioactive material
released by a licensee, or to any other source of radiation under
the control of the licensee. It does not include occupational dose
or doses received from background radiation, as a patient from medical
practices, or from voluntary participation in medical research programs.
(117) Qualitative fit test (QLFT)--A pass/fail test
to assess the adequacy of respirator fit that relies on the individual's
response to the test agent.
(118) Quality factor (Q)--The modifying factor listed
in Table I or II of §336.3(c) or (d) of this title (relating
to Units of Radiation Exposure and Dose) that is used to derive dose
equivalent from absorbed dose.
(119) Quantitative fit test (QNFT)--An assessment of
the adequacy of respirator fit by numerically measuring the amount
of leakage into the respirator.
(120) Quarter (Calendar quarter)--A period of time
equal to one-fourth of the year observed by the licensee (approximately
13 consecutive weeks), providing that the beginning of the first quarter
in a year coincides with the starting date of the year and that no
day is omitted or duplicated in consecutive quarters.
(121) Rad--See §336.3 of this title (relating
to Units of Radiation Exposure and Dose).
(122) Radiation--Alpha particles, beta particles, gamma
rays, x-rays, neutrons, high-speed electrons, high-speed protons,
and other particles capable of producing ions. For purposes of the
rules in this chapter, "ionizing radiation" is an equivalent
term. Radiation, as used in this chapter, does not include non-ionizing
radiation, such as radio- or microwaves or visible, infrared, or ultraviolet
light.
(123) Radiation area--Any area, accessible to individuals,
in which radiation levels could result in an individual receiving
a dose equivalent in excess of 0.005 rem (0.05 millisievert) in one
hour at 30 centimeters from the source of radiation or from any surface
that the radiation penetrates.
(124) Radiation machine--Any device capable of producing
ionizing radiation except those devices with radioactive material
as the only source of radiation.
(125) Radioactive material--A naturally-occurring or
artificially-produced solid, liquid, or gas that emits radiation spontaneously.
(126) Radioactive substance--Includes byproduct material,
radioactive material, low-level radioactive waste, source material,
special nuclear material, source of radiation, and naturally occurring
radioactive material (NORM) NORM waste, excluding oil and gas NORM
waste.
(127) Radioactivity--The disintegration of unstable
atomic nuclei with the emission of radiation.
(128) Radiobioassay--See "Bioassay."
(129) Reference man--A hypothetical aggregation of
human physical and physiological characteristics determined by international
consensus. These characteristics shall be used by researchers and
public health workers to standardize results of experiments and to
relate biological insult to a common base. A description of "reference
man" is contained in the International Commission on Radiological
Protection (ICRP) report, ICRP Publication 23, "Report of the
Task Group on Reference Man."
(130) Rem--See §336.3 of this title (relating
to Units of Radiation Exposure and Dose).
(131) Residual radioactivity--Radioactivity in structures,
materials, soils, groundwater, and other media at a site resulting
from activities under the licensee's control. This includes radioactivity
from all licensed and unlicensed sources used by the licensee, but
excludes background radiation. It also includes radioactive materials
remaining at the site as a result of routine or accidental releases
of radioactive material at the site and previous burials at the site,
even if those burials were made in accordance with the provisions
of 10 Code of Federal Regulations Part 20.
(132) Respiratory protection equipment--An apparatus,
such as a respirator, used to reduce an individual's intake of airborne
radioactive materials. For purposes of the rules in this chapter, "respiratory
protective device" is an equivalent term.
(133) Restricted area--An area, access to which is
limited by the licensee for the purpose of protecting individuals
against undue risks from exposure to radiation and radioactive materials.
Restricted area does not include areas used as residential quarters,
but separate rooms in a residential building shall be set apart as
a restricted area.
(134) Reviewing official--The individual who shall
make the trustworthiness and reliability determination of an individual
to determine whether the individual may have, or continue to have,
unescorted access to the category 1 or category 2 quantities of radioactive
materials that are possessed by the licensee.
(135) Roentgen (R)--See §336.3 of this title (relating
to Units of Radiation Exposure and Dose).
(136) Sabotage--Deliberate damage, with malevolent
intent, to a category 1 or category 2 quantity of radioactive material,
a device that contains a category 1 or category 2 quantity of radioactive
material, or the components of the security system.
(137) Safe haven--A readily recognizable and readily
accessible site at which security is present or from which, in the
event of an emergency, the transport crew can notify and wait for
the local law enforcement authorities.
(138) Sanitary sewerage--A system of public sewers
for carrying off waste water and refuse, but excluding sewage treatment
facilities, septic tanks, and leach fields owned or operated by the
licensee.
(139) Sealed source--Radioactive material that is permanently
bonded or fixed in a capsule or matrix designed to prevent release
and dispersal of the radioactive material under the most severe conditions
that are likely to be encountered in normal use and handling.
Cont'd... |
