| (33) Lens dose equivalent (LDE)--The external DE to the lens of the eye at a tissue depth of 0.3 cm (300 mg/cm2 ). (34) License--A form of permission given by the agency to an applicant who has met the requirements for licensing set out in the Act and this chapter. (35) Licensed material--Radioactive material received, possessed, used, or transferred under a general or specific license issued by the agency. (36) Licensee--Any person who is licensed by the agency in accordance with the Act and this chapter. (37) Licensing state--Any state with rules equivalent to the Suggested State Regulations for Control of Radiation relating to, and having an effective program for, the regulatory control of naturally occurring or accelerator-produced radioactive material (NARM) and has been designated as such by the Conference of Radiation Control Program Directors, Inc. (38) Lost or missing radiation machine(s)--A radiation machine(s) whose location is unknown. (39) Machine-produced radiation--A stimulated emission of radiation from a manufactured product or device or component part of a manufactured product or device that has an electronic circuit that during operation can generate or emit a physical field of radiation. (40) Manufacture--To fabricate or mechanically produce. (41) Member of the public--Any individual, except when that individual is receiving an occupational dose. (42) Minimal threat radiation machines--Those radiation machines capable of generating or emitting fields of radiation that, during the operation of which: (A) no deliberate exposure of an individual occurs; (B) the radiation is not emitted in an open beam configuration; and (C) no physical injury to an individual has occurred and is known by the agency. (43) Minor--An individual less than 18 years of age. (44) Monitoring--The measurement of radiation and the use of the results of these measurements to evaluate potential exposures and doses. For purposes of this chapter, "radiation monitoring" and "radiation protection monitoring" are equivalent terms. (45) Occupational dose--The dose received by an individual in the course of employment in which the individual's assigned duties involve exposure to sources of radiation from licensed/registered and unlicensed/unregistered sources of radiation, whether in the possession of the licensee/registrant or other person. Occupational dose does not include dose received from background radiation, from any medical administration the individual has received, from exposure to individuals administered radioactive material and released in accordance with this chapter, from voluntary participation in medical research programs, or as a member of the public. (46) Particle accelerator--Any machine capable of accelerating electrons, protons, deuterons, or other charged particles in a vacuum and designed to discharge the resultant particulate or other associated radiation at energies usually in excess of 1 MeV. (47) Person--Any individual, corporation, partnership, firm, association, trust, estate, public or private institution, group, agency, local government, any other state or political subdivision or agency thereof, or any other legal entity, and any legal successor, representative, agent, or agency of the foregoing, other than the NRC, and other than federal government agencies licensed or exempted by the NRC. (48) Personnel monitoring equipment--(See definition for individual monitoring devices.) (49) Physician--An individual licensed by the Texas Medical Board. (50) Podiatrist--An individual licensed by the Texas State Board of Podiatric Medical Examiners. (51) Public dose--The dose received by a member of the public from exposure to sources of radiation released by a licensee, or to any other source of radiation under the control of a licensee/registrant. It does not include occupational dose or doses received from background radiation, from any medical administration the individual has received, from exposure to individuals administered radioactive material and released in accordance with this chapter, or from voluntary participation in medical research programs. (52) Quarter--A period of time equal to one-fourth of the year observed by the registrant, 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. (53) Rad--The special unit of absorbed dose. One rad is equal to an absorbed dose of 100 ergs per gram (erg/g) or 0.01 J/kg (0.01 gray). (54) Radiation--One or more of the following: (A) gamma and x-ray; alpha and beta particles and other atomic or nuclear particles or rays; (B) radiation emitted to energy density levels that could reasonably cause bodily harm from an electronic device; or (C) sonic, ultrasonic, or infrasonic waves from any electronic device or resulting from the operation of an electronic circuit in an electronic device in the energy range to reasonably cause detectable bodily harm. (55) Radiation area--Any area, accessible to individuals, in which radiation levels could result in an individual receiving a DE in excess of 0.005 rem (0.05 mSv) in 1 hour at 30 cm from the radiation machine or from any surface that the radiation penetrates. (56) Radiation machine--Any device capable of producing ionizing radiation except those devices with radioactive material as the only source of radiation. (57) Radiation safety officer (RSO)--An individual who has a knowledge of and the authority and responsibility to apply appropriate radiation protection rules, standards, and practices, who must be specifically authorized on a certificate of registration, and who is the primary contact with the agency. (58) Registrant--Any person issued a certificate of registration by the agency in accordance with the Act and this chapter. (59) Regulation (See definition for rule.) (60) Rem--The special unit of any of the quantities expressed as DE. The DE in rem is equal to the absorbed dose in rad multiplied by the quality factor (1 rem = 0.01 sievert (Sv)). (61) Remote inspection--An examination by the agency of information submitted by the registrant on a form provided by the agency. (62) Research and development--Research and development is defined as: (A) theoretical analysis, exploration, or experimentation; or (B) the extension of investigative findings and theories of a scientific or technical nature into practical application for experimental and demonstration purposes, including the experimental production and testing of models, devices, equipment, materials, and processes. (63) Restricted area--An area, access to which is limited by the registrant for the purpose of protecting individuals against undue risks from exposure to radiation. Restricted area does not include areas used as residential quarters, but separate rooms in a residential building may be set apart as a restricted area. (64) Roentgen (R)--The special unit of exposure. One roentgen (R) equals 2.58 x 10-4 C/kg of air. (See definition for exposure.) (65) Rule (as defined in the Government Code, Chapters 2001 and 2002, as amended)--Any agency statement of general applicability that implements, interprets, or prescribes law or policy, or describes the procedure or practice requirements of an agency. The term includes the amendment or repeal of a prior section but does not include statements concerning only the internal management or organization of any agency and not affecting private rights or procedures. The word "rule" was formerly referred to as "regulation." (66) Shallow dose equivalent (Hs ) (that applies to the external exposure of the skin of the whole body or the skin of an extremity)--The dose equivalent at a tissue depth of 0.007 cm (7 mg/cm2 ). For purposes of this chapter, the acronym SDE has the same meaning as the term shallow dose equivalent. (67) SI--The abbreviation for the International System of Units. (68) Sievert (Sv)--The SI unit of any of the quantities expressed as DE. The DE in sievert is equal to the absorbed dose in gray multiplied by the quality factor (1 Sv = 100 rem). (69) Site boundary--That line beyond which the land or property is not owned, leased, or otherwise controlled by the registrant. (70) Source of radiation--Any radioactive material, or any device or equipment emitting or capable of producing radiation. (71) Special units--The conventional units historically used by registrants, for example, rad (absorbed dose), and rem (DE). Cont'd... |
