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ENSI Erfahrungs- und Forschungsbericht 2011

community. The NORA project consists of a con-

sortium formed by the Swiss Federal Nuclear Sa-

fety Inspectorate ENSI, the nuclear power plants

Mühleberg (KKM) and Leibstadt (KKL) and two la-

boratories (Lab for Nuclear Materials and Hot Lab

Division) at PSI. The ENSI and all Swiss utilities are

periodically informed on the actual project status

during the annual ENSI-PSI project presentations.

Additionally, semi-annual project steering commit-

tee meetings are held where ENSI, KKM, KKL and

PSI are represented. Close collaboration exists also

to the KORA-II project.

5. International collaborations

The involved groups and scientists at PSI are very

well integrated in international research projects,

networks and communities (e.g., International Co-

operative Group on Environmentally-Assisted Cra-

cking of Water Reactor Structural Materials (ICG-

EAC), European Co-operative Group on Corrosion

Monitoring of Nuclear Materials (ECG-COMON),

Working Party 4 (Nuclear Corrosion) of the Eu-

ropean Federation of Corrosion (EFC), etc.). Our

research activities are presented and discussed

within these groups. Within the 6

EU-framework

program, the Component Safety group actively

participated as an associate member in the Net-

work of Excellence for Nuclear Plant Life Predic-

tion (NULIFE). PSI is also in close contact with GE

Global Research Centre concerning the research

on NobleChem

. Additionally, cooperation with

the BWR Vessel and Internals Project of the Elec-

tric Power Research Institute (EPRI) was established

in 2011. PSI will provide KKL OLNC plant data for

EPRI, which they will use for the modelling of no-

ble metal deposition in BWRs.

6. Assessment of 2011 and

perspectives for 2012

6.1. Assessment of 2011

The major part of the project goals and milesto-

nes for the second project year has been achie-

ved. The optimisation of the experimental facilities

at PSI (high-temperature water loop), a first series

of Pt deposition experiments (eight tests) and the

qualification of the analytical methods (investiga-

tion of the specimens by SEM, TEM and LA-ICP-

MS) covered the largest part of the project work

in 2011. Several meetings were held (at KKL, PSI

and with EPRI), specimens exposed to the reactor

water in KKL were transported to PSI, four confe-

rences (ICG-EAC 2011, EUROCORR 2011, GE-Hi-

tachi Chemistry Conference 2011, and VGB Con-

Figure 4:

SEM micrograph (back

scattered electron

image, Z contrast) of a

stainless steel specimen

from a test where 665

µg Pt was injected with

an injection rate of

11.6 µg/h. The Pt parti-

cles are represented by

the white dots on the

oxide crystals.

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