(19)

(11)

EP 0 817 982 A1

(12)

(43) Date of publication: 14.01.1998 Bulletin 1998/03 (21) Application number: 96941803.0 (22) Date of filing: 31.12.1996

(51) International Patent Classification (IPC):  G01N 21/ 05( . ) G02B 6/ 38( . ) (86) International application number: PCT/IL1996/000195 (87) International publication number: WO 1997/028477 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: AT BE CH DE DK GB LI NL (30) Priority: 31.01.1996 IL 19960116972 (71) Applicant: THE STATE of ISRAEL Atomic Energy Commission Soreq Nuclear Research Center Yavne 81800 (IL)	(72) Inventor: BORNSTEIN, Aharon 75437 Rishon LeZion (IL) (74) Representative: Habasque, Etienne Joel Jean-François, et al  Cabinet Lavoix 2, Place d'Estienne d'Orves 75441 Paris Cédex 09 75441 Paris Cédex 09 (FR)