APPARATUS AND METHOD FOR DETECTING POWER DISTRIBUTION IN A NUCLEAR REACTOR FUEL ELEMENT
In order to map the power distribution of a nuclear fuel element, a passive detector is laid along the fuel element in situ to record the residual indiation of the fuel element. The detector spatially records the residual radiation as an image in a radioactive reaction product. In the preferred embo...
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| creator | BALL, RUSSELL M |
| description | In order to map the power distribution of a nuclear fuel element, a passive detector is laid along the fuel element in situ to record the residual indiation of the fuel element. The detector spatially records the residual radiation as an image in a radioactive reaction product. In the preferred embodiment, the detector comprises a cylindrical casing or wand enshrouding a material which converts incident gamma radiation having an energy level exceeding a preselected threshold to a correspondingly distributed neutron radiation field. The sheath encases a neutron field-sensitive activant, such as gold, in the form of a filament longitudinally disposed in the casing. The image of the low-level radiation field can thereafter be analyzed according to relatively risk-free techniques to map the power distribution of the fuel element. |
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The detector spatially records the residual radiation as an image in a radioactive reaction product. In the preferred embodiment, the detector comprises a cylindrical casing or wand enshrouding a material which converts incident gamma radiation having an energy level exceeding a preselected threshold to a correspondingly distributed neutron radiation field. The sheath encases a neutron field-sensitive activant, such as gold, in the form of a filament longitudinally disposed in the casing. The image of the low-level radiation field can thereafter be analyzed according to relatively risk-free techniques to map the power distribution of the fuel element.</description><language>eng ; fre</language><subject>MEASUREMENT OF NUCLEAR OR X-RADIATION ; MEASURING ; NUCLEAR ENGINEERING ; NUCLEAR PHYSICS ; NUCLEAR REACTORS ; PHYSICS ; TESTING</subject><creationdate>1980</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19800624&DB=EPODOC&CC=CA&NR=1080373A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19800624&DB=EPODOC&CC=CA&NR=1080373A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BALL, RUSSELL M</creatorcontrib><title>APPARATUS AND METHOD FOR DETECTING POWER DISTRIBUTION IN A NUCLEAR REACTOR FUEL ELEMENT</title><description>In order to map the power distribution of a nuclear fuel element, a passive detector is laid along the fuel element in situ to record the residual indiation of the fuel element. The detector spatially records the residual radiation as an image in a radioactive reaction product. In the preferred embodiment, the detector comprises a cylindrical casing or wand enshrouding a material which converts incident gamma radiation having an energy level exceeding a preselected threshold to a correspondingly distributed neutron radiation field. The sheath encases a neutron field-sensitive activant, such as gold, in the form of a filament longitudinally disposed in the casing. 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The detector spatially records the residual radiation as an image in a radioactive reaction product. In the preferred embodiment, the detector comprises a cylindrical casing or wand enshrouding a material which converts incident gamma radiation having an energy level exceeding a preselected threshold to a correspondingly distributed neutron radiation field. The sheath encases a neutron field-sensitive activant, such as gold, in the form of a filament longitudinally disposed in the casing. The image of the low-level radiation field can thereafter be analyzed according to relatively risk-free techniques to map the power distribution of the fuel element.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
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| subjects | MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS TESTING |
| title | APPARATUS AND METHOD FOR DETECTING POWER DISTRIBUTION IN A NUCLEAR REACTOR FUEL ELEMENT |
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