Published 1988
| Version v1
Report
Core history and nuclide inventory of the Chernobyl core at the time of accident
Description
Activity ratios found in burnt nuclear fuel are characteristic of burnup and decay time after shutdown of a reactor. Cs-134/Cs-137, Cs-136/Cs-137, and Te-129/Te-132 activity ratios established for the Chernobyl fallout are compared with those calculated for different burnups by using the code system SAS 2(UHB)/ORIGEN-S(UHB). The measured activity ratios in fallout correspond to a calculated mean burnup of 12.85 +/- 0.15 GWd/ton (core average). Surprisingly, they also indicate a shutdown of the plant between 3 and 5 days before the accident occurred. The inventories of important radionuclides at the time of accident are calculated for the determined burnup and decay period of the core
Additional details
Publishing Information
- Imprint Title
- Nuclear Safety: Technical progress review, January-March 1988
- Journal Page Range
- p. 1-5.
- Report number
- TPR-NS--29-No.1
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19095207
- Subject category
- S54: ENVIRONMENTAL SCIENCES; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- CESIUM 134; CESIUM 136; CESIUM 137; COMPUTER CALCULATIONS; FALLOUT; GRAMINEAE; INVENTORIES; ISOTOPE RATIO; NUCLEAR POWER PLANTS; RADIOACTIVITY; REACTOR ACCIDENTS; REACTOR CORES; REACTOR SHUTDOWN; S CODES; SAMPLING; SOILS; SURFACE WATERS; TELLURIUM 129; TELLURIUM 132; USSR; WATER CHEMISTRY
- Descriptors DEC
- ACCIDENTS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; COMPUTER CODES; DAYS LIVING RADIOISOTOPES; DEVELOPED COUNTRIES; ELECTRON CAPTURE RADIOISOTOPES; EUROPE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PLANTS; POWER PLANTS; RADIOISOTOPES; REACTOR COMPONENTS; SECONDS LIVING RADIOISOTOPES; SHUTDOWN; TELLURIUM ISOTOPES; THERMAL POWER PLANTS; WATER TREATMENT; YEARS LIVING RADIOISOTOPES