(19)

(11)

EP 0 167 601 A1

(12)

(43) Date of publication: 15.01.1986 Bulletin 1986/03 (21) Application number: 85900572.0 (22) Date of filing: 27.12.1984

(51) International Patent Classification (IPC):  G01J 3/ 45( . ) G01J 9/ 02( . ) G01J 3/ 453( . ) (86) International application number: PCT/US1984/002134 (87) International publication number: WO 1985/003122 (18.07.1985 Gazette 1985/16)

(84) Designated Contracting States: BE CH DE FR GB LI NL SE (30) Priority: 16.01.1984 US 19840571175 (71) Applicant: OHIO UNIVERSITY Athens, OH 45701 (US)	(72) Inventor: WILLIAMS, Ronald, R. Athens, OH 45701 (US) (74) Representative: Baillie, Iain Cameron, et al  c/o Ladas & Parry Altheimer Eck 2 D-80331 München D-80331 München (DE)