Münster 2017 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

AGA: Arbeitsgruppe Physik und Abrüstung

AGA 4: The Nuclear Test Ban Treaty and its Verification

AGA 4.3: Vortrag

Donnerstag, 30. März 2017, 17:45–18:15, S Aula

CTBT Verification - Atmospheric Release of Xenon from Civil Nuclear Power Plants — •Matthias Englert and Christoph Pistner — Öko-Institut e.V., Rheinstr. 95, 64295 Darmstadt

Efficient verification is a vital component of the comprehensive test ban treaty (CTBT) that supports global efforts for nonproliferation and disarmament. For verification purposes the comprehensive test ban treaty organization CTBTO will be using the global monitoring system with its technical components to detect nuclear detonations, after entry into force. Acoustic and seismic verification technologies are complemented by detecting radionuclides such as the fission product xenon. Discrimination between civil sources of xenon in nuclear power production from xenon released during a nuclear explosion can be accomplished comparing the differing isotopic vectors of the noble gas. We calculated different isotopic vectors of xenon produced in nuclear power plants with neutronic simulations under typical operating conditions in the plant and compared them with older models. Different production mechanisms in nuclear power reactors will be discussed including a sensitivity analysis of the isotopic vector to fuel element geometry, burnup, fuel composition, reactor type, power level and others. Finally we will present estimates about the release of xenon to the atmosphere from a power plant under different operation conditions such as shut-down, start of operation and accidental releases.