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(11)

EP 2 965 064 A1

(12)

(43) Date of publication: 13.01.2016 Bulletin 2016/02 (21) Application number: 14759534.2 (22) Date of filing: 05.03.2014

(51) International Patent Classification (IPC):  G01N 21/65(2006.01) G01J 3/44(2006.01) (86) International application number: PCT/US2014/020757 (87) International publication number: WO 2014/138238 (12.09.2014 Gazette 2014/37)

(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 (30) Priority: 05.03.2013 US 201361772694 P (71) Applicant: Smiths Detection Inc. Edgewood, MD 21040 (US)	(72) Inventor: LEE, Vincent, Yuan-Hsiang Winchester, MA 01890 (US) (74) Representative: Leach, Sean Adam et al Mathys & Squire LLP The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)