Published 1975
| Version v1
Report
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Release and deposition of fission products
Creators
- 1. Kernforschungsanlage Juelich G.m.b.H. (F.R. Germany). Projekt Hochtemperaturreaktor mit Heliumturbinen
Description
This paper discusses the release of fission products from coated fuel particles, the fission product carry-over and deposition in the reactor cycle by the coolant, and the decontamination of contaminated reactor cycle components of a high-temperature reactor with a helium turbine. It is shown that Kr 88, which is released by coolant gas leakage and emitted through the chimney, makes up most of the inhalation dose, while Cs 134, Cs 137, I 131, and Ag 110m are the most important sources of γ-radiation which are of major importance in inspections and maintenance because of the deposits they form on the various components of the coolant cycle. (RW/AK)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Die Arbeit befasst sich mit der Freisetzung von Spaltprodukten aus beschichteten Brennstoffteilchen, der Mitfuehrung und Ablagerung durch das Kuehlmittel im Reaktorkreislauf sowie mit der Dekontamination von verseuchten Reaktorkreislaufkomponenten eines Hochtemperaturreaktors mit Heliumturbine. Es zeigt sich, dass Kr 88 durch Kuehlgasleckage und Abgabe ueber den Schornstein den Hauptbeitrag zur Inhalationsdosis liefert, waehrend Cs 134, Cs 137, J 131 und Ag 110m die wichtigsten Gammastrahler sind, die durch Ablagerung auf den Kreislaufkomponenten fuer Inspektions- und Wartungsmoeglichkeiten entscheidend sind. (RW)
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Additional details
Additional titles
- Original title (German)
- Spaltproduktfreisetzung und -ablagerung
Publishing Information
- Imprint Pagination
- 8 p.
- Report number
- AED-Conf--75-233-003
Conference
- Title
- Project high-temperature reactor with helium turbine - Status report.
- Dates
- 2 Jun 1975.
- Place
- Juelich, F.R. Germany.
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 6213289
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CESIUM 134; CESIUM 137; COATED FUEL PARTICLES; DECONTAMINATION; DEPOSITION; FISSION FRAGMENTS; FISSION PRODUCT RELEASE; GRAPHITE; IODINE 131; KRYPTON 88; RADIONUCLIDE MIGRATION; REACTOR COOLING SYSTEMS; SILVER 110; STRONTIUM 90; TELLURIUM 129; XENON 133
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON; CESIUM ISOTOPES; CLEANING; DAYS LIVING RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FUEL PARTICLES; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IODINE ISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; KRYPTON ISOTOPES; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; REACTOR COMPONENTS; SECONDS LIVING RADIOISOTOPES; SILVER ISOTOPES; STRONTIUM ISOTOPES; TELLURIUM ISOTOPES; XENON ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 13 figs.