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1. (WO2005112070) X-RAY TUBE COMPRISING AN EXTENDED AREA EMITTER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/112070    International Application No.:    PCT/IB2005/051522
Publication Date: 24.11.2005 International Filing Date: 10.05.2005
IPC:
H01J 35/06 (2006.01), H01J 3/02 (2006.01), H01J 35/10 (2006.01)
Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1, NL-5621 BA Eindhoven (NL) (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW only).
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE/DE]; Steindamm 94, 20099 Hamburg (DE) (DE only).
KOCH, Lothar [DE/DE]; (NL) (For US Only)
Inventors: KOCH, Lothar; (NL)
Agent: WOLFS, Marc, J., M.; Prof. Holstlaan 6, NL-5656 AA Eindhoven (NL)
Priority Data:
04102097.5 13.05.2004 EP
Title (EN) X-RAY TUBE COMPRISING AN EXTENDED AREA EMITTER
(FR) TUBE A RAYONS X COMPRENANT UN EMETTEUR A ZONE D'EMISSION ETENDUE
Abstract: front page image
(EN)The invention relates to an X-ray tube (1) comprising a vacuum container (3), an anode (4) and a cathode (5) disposed within said container (3), wherein the cathode (5) is an extended area emitter. It is an object of the invention to provide rapid controllability of the extended area emitter without compromising the emitter's mechanical stability. To achieve this object the X-ray tube comprises a radiation module (2, 8) adapted to direct pulsed radiation (9) onto the emitter to heat the emitter surface (6) to cause thermionic emission of electrons (12).
(FR)L'invention concerne un tube à rayons X (1) comprenant un contenant sous vide (3) ainsi qu'une anode (4) et une cathode (5) disposées dans ce contenant (3), la cathode (5) étant un émetteur à zone d'émission étendue. Cette invention doit permettre d'obtenir une capacité de commande rapide de l'émetteur à zone d'émission étendue sans compromettre la stabilité mécanique dudit émetteur. A cette fin, le tube à rayons X comprend un module de rayonnement (2, 8) conçu pour diriger un rayonnement pulsé (9) sur l'émetteur en vue de chauffer la surface de cet émetteur (6) et de provoquer une émission thermoionique d'électrons (12).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)