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(11)

EP 3 123 480 A1

(12)

(43) Date of publication: 01.02.2017 Bulletin 2017/05 (21) Application number: 14718173.9 (22) Date of filing: 26.03.2014

(51) International Patent Classification (IPC):  G21F 5/12(2006.01) G21F 7/005(2006.01) G21F 5/14(2006.01) (86) International application number: PCT/IB2014/060165 (87) International publication number: WO 2015/145206 (01.10.2015 Gazette 2015/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (71) Applicant: The South African Nuclear Energy Corporation Limited 2025 Brits Magisterial District (ZA)	(72) Inventors: BOTHA, Johannes Samuel Frederik 0183 Pretoria (ZA) ZEEVAART, Jan Rijn 0182 Flaurana (ZA) (74) Representative: Gardiner, Stephen Robin  Dehns St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)