Proposed SMILE scope

Anders Jenssen, Martin Bjurman, Lotta Nystrand, Joakim Lundström, Sofia Björnsson

January 23, 2020

Overview of STUDSVIK test facilities and capabilities

FUEL AND MATERIALS TECHNOLOGY (FMT)

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Corrosion labFA (fuel storage)

Transports Microscopy & Analysis Active metals laboratory

Hot cell laboratory

Overview

TRANSPORTATION

Type A, >10 m3 Type A Type B

● Casks of various types and sizes available● Dedicated transport group● Transports from all over the world - Europe, Japan, USA and

Scandinavia, including domestic transports

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Examples of transportation casks

Transportation

POOL FACILITY AND STORAGE

● Originally built in early 1970’s for Ågesta fuel● 3 pools, each with a depth of 8 m

• Recently refurbished; Cask support and AGR fuel storage rack

• 60t crane upgraded with new hoist

● Pools can be used for storage and cutting of highly active materials• Controlled area for dry storage and cutting of contaminated materials

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Storage

HOT CELL LABORATORY - OVERVIEW

● Seven concrete hot-cells for PIE and fuel testing• Commissioned 1960 - Laboratory continuously maintained and updated

• Accepts very high activity (max 40 000 TBq) and a large mass of irradiated fuel or other highly active materials

• Accepts all casks with horizontal loading and full length fuel rods

• Storage of fuel rods, fuel rodlets, various materials, components, etc.

• Cutting of larger pieces of material

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Hot cell - Overview

HOT CELL LABORATORY – TEST METHODS● Various fuel PIE methods; e.g. rod puncture and FGR, burnup determination, etc. ● Visual inspection● Gamma scan● Profilometry ● EC defect testing● Mechanical testing (150 kN load capacity)● Metallography● FEGSEM, EDS, WDS, EBSD, FIB● TEM, APT, etc. through cooperation with e.g., universities● Analytical methods (ICP-MS, ICP-OES, XRD, gas-MS)● Laser ablation – analysis by ICP-MS

WRNM guide tube

Flux thimble tube

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Hot cell –Test methods

ACTIVE METALS LABORATORY - OVERVIEW

● Laboratory with lead and steel cells for various purposes• EDM and high-speed milling machine

for manufacturing samples

• Visual inspection

• Machines for mechanical testing

• Hardness testing

• Autoclaves for SCC testing

• Optical and SEM microscopy

• Laser profilometry

• Hydrogen measurements

• C & S and O & N analyzers

EDM

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Active metals lab –Overview

MECHANICAL TESTING

● Mechanical testing• Tensile properties

• Fracture toughness

• Low cycle fatigue and fatigue propagation

• Creep

• Impact testing, including instrumented drop tower machine – Accredited for surveillance testing

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Active metals lab –Mechanical testing

AUTOCLAVES FOR TESTING OF ACTIVE MATERIALS● Shielded autoclave systems for crack

initiation and CGR testing of highly irradiated materials• BWR and PWR environments at temperatures

up to 360 °C• Various types of initiation specimens• Simultaneous testing of up to 40 specimens• Up to 0.75TCT specimens for crack growth• FT and fatigue testing in LWR environments

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Active metals lab –Autoclaves

CORROSION AND WATER CHEMISTRY LABORATORY● Corrosion and water chemistry

studies in simulated reactor environments (non radioactive)• SCC, initiation and growth

• Activity buildup

• CIPS

• Erosion corrosion

• Water chemistry effects (DH, KOH, etc.) on corrosion behavior

• Custom-designed experiments

• Etc.

● Development of test rigs and equipment for use in hot cell

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Corrosion lab –Overview