Published November 29, 1984
| Version v1
Patent
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Process for identifying objects, particularly fuel rods of a nuclear reactor and device for carrying out the process
Description
In order to identify fuel rods of a nuclear reactor, ultrasonic seels are used, which consist of a polycrystalline material whose grain boundaries act as scatter centres when irradiated with ultrasonics and which cause reproducable scatter interference structures. By detecting and comparing the scatter interference structures of the high frequency ultrasonic backscatter signals, fuel rods which have been measured in the context of a zero picture of the reflectogram and provided with an ultrasonic seal can be identified again. (orig.)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Zur Identifizierung von Brennstaeben eines Kernreaktors werden Ultraschallsiegel verwendet, die aus einem polykristallinen Material bestehen, dessen Korngrenzen bei der Beschallung mit Ultraschall als Streuzentren wirken und reproduzierbare Streuinterferenzstrukturen bewirken. Durch Erfassung und Vergleich der Streuinterferenzstrukturen der Hochfrequenz-Ultraschall-Rueckstreusignale lassen sich einmal im Rahmen einer Nullaufnahme des Reflektogramms erfasste und mit einem Ultraschallsiegel versehene Brennstaebe wieder identifizieren. (orig.)Files
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Additional details
Additional titles
- Original title (German)
- Verfahren zur Identifizierung von Gegenstaenden, insbesondere Brennstaeben eines Kernreaktors, und Vorrichtung zur Durchfuehrung des Verfahrens
Publishing Information
- Imprint Pagination
- 17 p.
- IPC:
- Int. Cl. G21C 17/06.
- IPC
- Int. Cl. G21C 17/06.
- Patent number
- DE patent document 3319102/A/
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 18033153
- Subject category
- S98: NUCLEAR DISARMAMENT, SAFEGUARDS AND PHYSICAL PROTECTION;
- Descriptors DEI
- FUEL RODS; NUCLEAR MATERIALS DIVERSION; SAFEGUARDS; SECURITY SEALS; ULTRASONIC TESTING
- Descriptors DEC
- ACOUSTIC TESTING; FUEL ELEMENTS; MATERIALS TESTING; NONDESTRUCTIVE TESTING; PHYSICAL PROTECTION DEVICES; REACTOR COMPONENTS; TESTING