Radiation Detectors MISCELLANEOUS DETECTORSMISCELLANEOUS DETECTORSFour other types of radiation detectors are the self-powered neutron detector,wide range fission chamber, flux wire, and photographic film.EO 2.9 DESCRIBE how the following detect neutrons:a. Self-powered neutron detectorb. Wide range fission chamberc. Flux wireEO 2.10 DESCRIBE how a photographic film is used to measurethe following:a. Total radiation doseb. Neutron doseSelf-PoweredNeutronDetectorIn very large reactor plants, the need exists to monitor neutron flux in various portions of thecore on a continuous basis. This allows for quick detection of instability in any section of thecore. This need brought about the development of the self-powered neutron detector that issmall, inexpensive, and rugged enough to withstand the in-core environment. The self-poweredneutron detector requires no voltage supply for operation. Figure 29 illustrates a simplifieddrawing of a self-powered neutron detector.Figure 29 Self-Powered Neutron DetectorRev. 0 Page 51 IC-06
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