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TNMS

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TNMS

  • TNMS is used to monitor the sub-critical multiplication during the initial core fuel loading of PWR.
  • The leakage rate of neutrons is very small during the fuel loading in the initial core, and we can not monitor it only with the ENFMS(Excore Neutron Flux Measurement System)
  • TNMS, a dunker built-in the neutron detector, monitors the subcritical conditions of the core in real time during fuel loading.