EP 0900450 A1 19990310 - ENVELOPE FOR ELECTROMAGNETIC RADIATION SOURCE AND METHOD FOR ELIMINATING EXTRAFOCAL ELECTROMAGNETIC RADIATION
Title (en)
ENVELOPE FOR ELECTROMAGNETIC RADIATION SOURCE AND METHOD FOR ELIMINATING EXTRAFOCAL ELECTROMAGNETIC RADIATION
Title (de)
UMHÜLLUNG FÜR EINE ELEKTROMAGNETISCHE STRAHLUNGSQUELLE UND VERFAHREN ZUR BESEITIGUNG EXTRAFOKALER ELEKTROMAGNETISCHER STRAHLUNG
Title (fr)
ENVELOPPE POUR SOURCE DE RAYONNEMENT ELECTROMAGNETIQUE ET PROCEDE POUR L'ELIMINATION DU RAYONNEMENT ELECTROMAGNETIQUE EXTRAFOCAL
Publication
Application
Priority
- FR 9700880 W 19970520
- FR 9606228 A 19960520
Abstract (en)
[origin: WO9744809A1] The envelope comprises a window made of material transparent to the radiation emitted by the source that comprises at least one chamber (20, 22, 23) in which can be moved a material impervious to the electromagnetic radiation, the chamber being shaped such that the material impervious to the radiation can be inserted from outside the chamber and that inside the chamber the material impervious to the radiation surrounds a radiation beam passage zone, such that the surface of the beam passage zone vaires according to the volume of the impervious material in the chamber, thus eliminating the extrafocal stray radiation. The invention is useful in X-ray imaging apparatus.
IPC 1-7
IPC 8 full level
H01J 35/18 (2006.01); G21K 1/04 (2006.01); H01J 35/16 (2006.01); H05G 1/00 (2006.01)
CPC (source: EP US)
G21K 1/04 (2013.01 - EP US); H01J 35/16 (2013.01 - EP US); H01J 2235/166 (2013.01 - EP US); H01J 2235/18 (2013.01 - EP US)
Citation (search report)
See references of WO 9744809A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9744809 A1 19971127; DE 19781787 T1 19990617; EP 0900450 A1 19990310; FR 2748848 A1 19971121; FR 2748848 B1 20030307; JP 2000511335 A 20000829; US 6185279 B1 20010206
DOCDB simple family (application)
FR 9700880 W 19970520; DE 19781787 T 19970520; EP 97925103 A 19970520; FR 9606228 A 19960520; JP 54171197 A 19970520; US 19450198 A 19981119