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Results of dose calculations for NET accidental and normal operation releases of tritium and activation products

Technical Report:

Abstract

This report documents conditions, data and results of dose calculations for accidental and normal operation releases of tritium and activation products, performed within the NET subtask SEP2.2 (`NET-Benchmark`) of the European Fusion Technology Programme. For accidental releases, the computer codes UFOTRI and COSYMA for assessing the radiological consequences, have been applied for both deterministic and probabilistic calculations. The influence on dose estimates of different release times (2 minutes / 1 hour), two release heights (10 m / 150 m), two chemical forms of tritium (HT/HTO), and two different model approaches for the deposition velocity of HTO on soil was investigated. The dose calculations for normal operation effluents were performed using the tritium model of the German regulatory guidelines, parts of the advanced dose assessment model NORMTRI still under development, and the statistical atmospheric dispersion model ISOLA. Accidental and normal operation source terms were defined as follows: 10g (3.7 10{sup 15} Bq) for accidental tritium releases, 10 Ci/day (3.7 10{sup 11} Bq/day) for tritium releases during normal operation and unit releases of 10{sup 9} Bq for accidental releases of activation products and fission products. (orig./HP). [Deutsch] Der Bericht enthaelt Definition, Eingabedaten und Ergebnisse von Rechnungen, die im Rahmen des europaeischen Fusions-Technologieprogramms  More>>
Publication Date:
Aug 01, 1992
Product Type:
Technical Report
Report Number:
KFK-5028
Reference Number:
SCA: 700400; PA: DEN-92:016626; SN: 93000906356
Resource Relation:
Other Information: PBD: Aug 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NET TOKAMAK; ENVIRONMENTAL EXPOSURE PATHWAY; TRITIUM; ACCIDENTS; OPERATION; RISK ASSESSMENT; RADIOACTIVATION; RADIATION DOSES; COMPUTERIZED SIMULATION; HYDROGEN TRITIDE; MAINTENANCE; ENVIRONMENTAL EFFECTS; DEPOSITION; TIME DEPENDENCE; SOURCE TERMS; FISSION PRODUCT RELEASE; METEOROLOGY; DISPERSIONS; RADIOACTIVE EFFLUENTS; 700400; FUSION TECHNOLOGY
OSTI ID:
10106223
Research Organizations:
Kernforschungszentrum Karlsruhe GmbH (Germany). Inst. fuer Neutronenphysik und Reaktortechnik; Kernforschungszentrum Karlsruhe GmbH (Germany). Projekt Kernfusion
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE93744883; TRN: DE9216626
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
163 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Raskob, W, and Hasemann, I. Results of dose calculations for NET accidental and normal operation releases of tritium and activation products. Germany: N. p., 1992. Web.
Raskob, W, & Hasemann, I. Results of dose calculations for NET accidental and normal operation releases of tritium and activation products. Germany.
Raskob, W, and Hasemann, I. 1992. "Results of dose calculations for NET accidental and normal operation releases of tritium and activation products." Germany.
@misc{etde_10106223,
title = {Results of dose calculations for NET accidental and normal operation releases of tritium and activation products}
author = {Raskob, W, and Hasemann, I}
abstractNote = {This report documents conditions, data and results of dose calculations for accidental and normal operation releases of tritium and activation products, performed within the NET subtask SEP2.2 (`NET-Benchmark`) of the European Fusion Technology Programme. For accidental releases, the computer codes UFOTRI and COSYMA for assessing the radiological consequences, have been applied for both deterministic and probabilistic calculations. The influence on dose estimates of different release times (2 minutes / 1 hour), two release heights (10 m / 150 m), two chemical forms of tritium (HT/HTO), and two different model approaches for the deposition velocity of HTO on soil was investigated. The dose calculations for normal operation effluents were performed using the tritium model of the German regulatory guidelines, parts of the advanced dose assessment model NORMTRI still under development, and the statistical atmospheric dispersion model ISOLA. Accidental and normal operation source terms were defined as follows: 10g (3.7 10{sup 15} Bq) for accidental tritium releases, 10 Ci/day (3.7 10{sup 11} Bq/day) for tritium releases during normal operation and unit releases of 10{sup 9} Bq for accidental releases of activation products and fission products. (orig./HP). [Deutsch] Der Bericht enthaelt Definition, Eingabedaten und Ergebnisse von Rechnungen, die im Rahmen des europaeischen Fusions-Technologieprogramms unter der Bezeichnung `NET subtask SEP 2.2`, (`NET-Benchmark`), durchgefuehrt wurden. Fuer die unfallbedingten Freisetzungen wurden die Rechenprogramme UFOTRI (Tritium) und COSYMA (Aktivierungsprodukte/Spaltprodukte) sowohl fuer deterministische als auch fuer probabilistische Dosisabschaetzungen eingesetzt. Es wurde der Einfluss unterschiedlicher Freisetzungszeitraeume (2 Minuten / 1 Stunde), zweier Freisetzungshoehen (10 m / 150 m), zweier unterschiedlicher chemischer Former von Tritium (HT/HTO) und zweier unterschiedlicher Modellansaetze fuer die Depositionsgeschwindigkeit von HTO auf den Erdboden auf die Ergebnisse untersucht. Fuer die Dosisabschaetzungen im Rahmen des Routinebetriebs wurden das Tritiummodell des deutschen Genehmigungsverfahrens, Teile des Rechenprogramms NORMTRI, das sich noch in der Entwicklung befindet, sowie das statistische Ausbreitungsmodell ISOLA benutzt. Die Quellterme wurden fuer die unfallbedingten Freisetzungen fuer Tritium mit 3.7 10{sup 15} Bq und fuer Freisetzungen waehrend des Normalbetriebs mit 10 Ci pro Tag (3.7 10{sup 11} Bq pro Tag) angenommen. Fuer die Aktivierungsprodukt- bzw. Spaltproduktfreisetzungen wurden Einheitsquellterme von 10{sup 9} Bq je Isotop unterstellt. (orig./HP).}
place = {Germany}
year = {1992}
month = {Aug}
}