Global Patent Index - EP 1058273 A1

EP 1058273 A1 2000-12-06 - Radiation conversion screen for x-rays into large size luminous photons and X-ray image processing device with this screen

Title (en)

Radiation conversion screen for x-rays into large size luminous photons and X-ray image processing device with this screen

Title (de)

In grossen Lichtphotone Röntgenstrahlungsumwandlungsschirm und Röntgenaufnahmetechnik mit diesem Schirm

Title (fr)

Ecran de conversion de rayonnements X en photons lumineux de grande dimension et système de radiologie comportant cet écran

Publication

EP 1058273 A1 (FR)

Application

EP 00401506 A

Priority

FR 9906869 A

Abstract (en)

The conversion screen comprises a rigid silicon carbide or boron carbide backing plate (20) which is transparent to X-rays. It has one face (20a) able to receive and transmit X-rays and a second face (20b) coated with a layer of sodium iodide (22) to convert the X-rays transmitted by the plate into visible light photons. The conversion screen comprises a rigid silicon carbide or boron carbide backing plate (20) which is transparent to X-rays. It has one face (20a) able to receive and transmit X-rays and a second face (20b) coated with a layer of sodium iodide (22) to convert the X-rays transmitted by the plate into visible light photons. It also has a layer of a visible light reflecting material (24) between the backing plate and sodium iodide layer. An Independent claim is also included for a digital radiology system comprising the above screen, and an X-ray emitter, a receiver and converter, and a digital detector and image display.

IPC 1-7 (main, further and additional classification)

G21K 4/00

IPC 8 full level (invention and additional information)

G21K 4/00 (2006.01)

CPC (invention and additional information)

G21K 4/00 (2013.01); G21K 2004/06 (2013.01); G21K 2004/10 (2013.01); G21K 2004/12 (2013.01)

Citation (search report)

Designated contracting state (EPC)

CH DE GB IT LI

EPO simple patent family

EP 1058273 A1 20001206; FR 2794565 A1 20001208; FR 2794565 B1 20010803

INPADOC legal status


2004-06-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031202

2001-08-22 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: CH DE GB IT LI

2001-07-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010505

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE GB IT LI

2000-12-06 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI