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  • CIRTEN (1)

  • CIRUS (4)

  • Classified information (0)

    Information that could be used by an adversary to harm the U.S. or its allies and thus must be protected. The NRC has two types of classified information. The first type, читать далее...

    Information that could be used by an adversary to harm the U.S. or its allies and thus must be protected. The NRC has two types of classified information. The first type, known as national security information, is information that is classified by an Executive Order. Its release would damage national security to some degree. The second type, known as restricted data, is information that is classified by the Atomic Energy Act. It would assist individuals or organizations in designing, manufacturing, or using nuclear weapons. Access to both types of information is restricted to authorized persons who have been properly cleared and have a “need to know” the information for their official duties. For additional detail, see Classified Information.

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  • Cleanup system (0)

    A system used for continuously filtering and demineralizing a reactor coolant system to reduce contamination levels and to minimize corrosion.

    A system used for continuously filtering and demineralizing a reactor coolant system to reduce contamination levels and to minimize corrosion.

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  • CMS (9)

  • CNSC (1)

  • Coach (0)

  • Coastdown (0)

    A system used for continuously filtering and demineralizing a reactor coolant system to reduce contamination levels and to minimize corrosion.

    A system used for continuously filtering and demineralizing a reactor coolant system to reduce contamination levels and to minimize corrosion.

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  • COEX (1)

  • Cold shutdown (0)

    The term used to define a reactor coolant system at atmospheric pressure and at a temperature below 200 degrees Fahrenheit following a reactor cooldown.

    The term used to define a reactor coolant system at atmospheric pressure and at a temperature below 200 degrees Fahrenheit following a reactor cooldown.

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  • Combined licence (0)

    An NRC-issued license that authorizes a licensee to construct and (with certain specified conditions) operate a nuclear power plant at a specific site, in accordance читать далее...

    An NRC-issued license that authorizes a licensee to construct and (with certain specified conditions) operate a nuclear power plant at a specific site, in accordance with established laws and regulations. A COL is valid for 40 years (with the possibility of a 20-year renewal). For additional detail, see Combined License Applications.

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  • Commercial sector (energy users_ (0)

    Generally, nonmanufacturing business establishments, including hotels, motels, and restaurants; wholesalers and retail stores; and health, social, and educational читать далее...

    Generally, nonmanufacturing business establishments, including hotels, motels, and restaurants; wholesalers and retail stores; and health, social, and educational institutions. However, utilities may categorize commercial service as all consumers whose demand or annual usage exceeds some specified limit that is categorized as residential service.

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  • Committed dose equivalent (CDE) (0)

    As defined in Title 10, Section 20.1003, of the Code of Federal Regulations (10 CFR 20.1003), the CDE (HT,50) is the dose to some specific organ or tissue of reference читать далее...

    As defined in Title 10, Section 20.1003, of the Code of Federal Regulations (10 CFR 20.1003), the CDE (HT,50) is the dose to some specific organ or tissue of reference (T) that will be received from an intake of radioactive material by an individual during the 50-year period following the intake.

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  • Committed effective dose equivalent (CEDE) (0)

    As defined in Title 10, Section 20.1003, of the Code of Federal Regulations (10 CFR 20.1003), the CEDE (HE,50) is the sum of the products of the committed dose читать далее...

    As defined in Title 10, Section 20.1003, of the Code of Federal Regulations (10 CFR 20.1003), the CEDE (HE,50) is the sum of the products of the committed dose equivalents for each of the body organs or tissues that are irradiated multiplied by the weighting factors (WT) applicable to each of those organs or tissues (HE,50 = ΣWTHT.50).

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  • Compact (0)

    A group of two or more States that have formed business alliances to dispose of low-level radioactive waste on a regional basis. For details, see Low-Level Waste читать далее...

    A group of two or more States that have formed business alliances to dispose of low-level radioactive waste on a regional basis. For details, see Low-Level Waste Disposal, and for locations, see Low-Level Waste Compacts.

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  • Compound (0)

    A chemical combination of two or more elements combined in a fixed and definite proportion by weight.

    A chemical combination of two or more elements combined in a fixed and definite proportion by weight.

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  • Condensate (0)

    Water that has been produced by the cooling of steam in a condenser.

    Water that has been produced by the cooling of steam in a condenser.

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  • Condenser (0)

    A large heat exchanger designed to cool exhaust steam from a turbine below the boiling point so that it can be returned to the heat source as water. In a читать далее...

    A large heat exchanger designed to cool exhaust steam from a turbine below the boiling point so that it can be returned to the heat source as water. In a pressurized-water reactor, the water is returned to the steam generator. In a boiling-water reactor, it returns to the reactor core. The heat removed from the steam by the condenser is transferred to a circulating water system and is exhausted to the environment, either through a cooling tower or directly into a body of water.

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  • Construction recapture (0)

    The maximum number of years that could be added to a facility’s license expiration date to recapture the period between the date the NRC issued the facility’s читать далее...

    The maximum number of years that could be added to a facility’s license expiration date to recapture the period between the date the NRC issued the facility’s construction permit to the date it granted an operating license. A licensee must submit an application to request this extension. For further information, see the Staff Requirements Memorandum regarding SECY-98-296, "Agency Policy Regarding Licensee Recapture of Low-Power Testing or Shutdown Time for Nuclear Power Plants."

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  • Containment structure (0)

    A gas-tight shell or other enclosure around a nuclear reactor to confine fission products that otherwise might be released to the atmosphere in the event of an accident. читать далее...

    A gas-tight shell or other enclosure around a nuclear reactor to confine fission products that otherwise might be released to the atmosphere in the event of an accident. Such enclosures are usually dome-shaped and made of steel-reinforced concrete.

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  • Control room (0)

    The area in a nuclear power plant from which most of the plant's power production and emergency safety equipment can be operated by remote control.

    The area in a nuclear power plant from which most of the plant's power production and emergency safety equipment can be operated by remote control.

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  • COOL (1)

  • Cooldown (0)

    The gradual decrease in reactor fuel rod temperature caused by the removal of heat from the reactor coolant system after the reactor has been shutdown.

    The gradual decrease in reactor fuel rod temperature caused by the removal of heat from the reactor coolant system after the reactor has been shutdown.

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  • Core damage frequency (0)

    An expression of the likelihood that, given the way a reactor is designed and operated, an accident could cause the fuel in the reactor to be damaged.

    An expression of the likelihood that, given the way a reactor is designed and operated, an accident could cause the fuel in the reactor to be damaged.

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  • Core melt accident (0)

    An event or sequence of events that result in the melting of part of the fuel in the reactor core.

    An event or sequence of events that result in the melting of part of the fuel in the reactor core.

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  • Counter (0)

    A general designation applied to radiation detection instruments or survey meters that detect and measure radiation. The signal that announces an ionization event is читать далее...

    A general designation applied to radiation detection instruments or survey meters that detect and measure radiation. The signal that announces an ionization event is called a count. For related information, see Detecting Radiation.

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  • CPR (1)

  • CPR (1)

  • CRAFT (1)

  • CRBRP (2)

  • Critical organ (0)

    A general designation applied to radiation detection instruments or survey meters that detect and measure radiation. The signal that announces an ionization event is читать далее...

    A general designation applied to radiation detection instruments or survey meters that detect and measure radiation. The signal that announces an ionization event is called a count. For related information, see Detecting Radiation.

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  • Cumulative dose (0)

    The total dose that an occupationally exposed worker receives as a result of repeated exposures to ionizing radiation to to the same portion of the body, or to the читать далее...

    The total dose that an occupationally exposed worker receives as a result of repeated exposures to ionizing radiation to to the same portion of the body, or to the whole body, over time. For additional detail, see Information for Radiation Workers.

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  • Cтратегия управления знаниями (0)

    (Knowledge management strategy) Детальный план того, как организация намеревается претворять в жизнь принципы и методы управления знаниями для достижения своих целей.

    (Knowledge management strategy) Детальный план того, как организация намеревается претворять в жизнь принципы и методы управления знаниями для достижения своих целей.

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