Global Patent Index - EP 1238265 A2

EP 1238265 A2 2002-09-11 - APPARATUS FOR FAST DETECTION OF X-RAYS

Title (en)

APPARATUS FOR FAST DETECTION OF X-RAYS

Title (de)

VORRICHTUNG ZUM SCHNELLEN NACHWEIS VON RÖNTGENSTRAHLEN

Title (fr)

APPAREIL POUR LA DETECTION RAPIDE DE RAYONS X

Publication

EP 1238265 A2 (EN)

Application

EP 00976149 A

Priority

  • GB 0004361 W
  • GB 9929701 A

Abstract (en)

[origin: WO0144792A2] This invention relates to the field of X-ray inspection systems and more particularly to those that use X-ray diffraction to analyse an object under inspection. X-ray diffraction has long been used as an aid to structural analysis and information about a diffracting material is commonly derived by one of two methods: energy dispersion or angular dispersion. Essential to prior art diffraction systems employing angular dispersion is the provision of a monochromatic incident X-ray beam. Conventionally, this is provided by filtering out the desired spectral peak from a polychromatic or quasi-monochromatic X-ray beam by means of the balanced filter technique. There are disadvantages to this technique in that it requires two diffraction images to be subtracted from one another in order to get the desired spectral peak. This results in beam attenuation and data of poor statistical quality. The invention proposes the use of an array of semiconductor detector elements and associated electronics which are capable of extracting an essentially monochromatic diffraction pattern from scattered polychromatic or quasi-monochromatic X-rays.

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

G01N 23/20

IPC 8 full level (invention and additional information)

G01N 23/207 (2006.01); G01N 23/20 (2006.01)

CPC (invention and additional information)

G01N 23/20 (2013.01)

Citation (search report)

See references of WO 0144792A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0144792 A2 20010621; WO 0144792 A3 20020321; AU 1403301 A 20010625; AU 775264 B2 20040729; CA 2394360 A1 20010621; CN 1243972 C 20060301; CN 1434920 A 20030806; EP 1238265 A2 20020911; GB 2357414 A 20010620; GB 9929701 D0 20000209; HK 1056394 A1 20061027; JP 2003517602 A 20030527; NO 20022858 A 20020815; NO 20022858 D0 20020614; TW 507071 B 20021021

INPADOC legal status


2009-02-11 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20080820

2008-05-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080409

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020614

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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