Global Patent Index - EP 1236055 A1

EP 1236055 A1 2002-09-04 - DEVICE AND METHOD FOR MEASURING LUMINOUS INTENSITY USING A PHOTOMULTIPLIER COMPRISING A CALIBRATION SOURCE

Title (en)

DEVICE AND METHOD FOR MEASURING LUMINOUS INTENSITY USING A PHOTOMULTIPLIER COMPRISING A CALIBRATION SOURCE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR LICHTINTENSITÄTMESSUNG MIT EINER KALIBRIERUNGSQUELLE UND PHOTOVERVIELFACHERRÖHRE

Title (fr)

DISPOSITIF ET PROCEDE DE MESURE D'INTENSITE LUMINEUSE A L'AIDE D'UN PHOTOMULTIPLICATEUR COMPORTANT UNE SOURCE DE CALIBRAGE

Publication

EP 1236055 A1 (FR)

Application

EP 00958735 A

Priority

  • FR 0002370 W
  • FR 9910833 A

Abstract (en)

[origin: FR2797961A1] The invention relates to a device (2) for measuring the luminous intensity of radiation, comprising a photomultiplier (4) which has a photoelectric input cathode and a calibration source (5). Said calibration source is adapted to emit radiation of a constant intensity towards said photoelectric cathode. According to the inventive method, the measurement for the radiation to be measured is related to that of the radiation of the calibration source. The advantages of the invention include the elimination of fluctuations and/or deviations of the photomultiplier gain. The invention can be advantageously used with pulsed X-rays.

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

G01T 1/40; G01T 1/208

IPC 8 full level (invention and additional information)

G01T 1/208 (2006.01); G01T 1/40 (2006.01)

CPC (invention and additional information)

G01T 1/208 (2013.01); G01T 1/40 (2013.01)

Citation (search report)

See references of WO 0114909A1

Designated contracting state (EPC)

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

EPO simple patent family

FR 2797961 A1 20010302; FR 2797961 B1 20011207; AU 7016200 A 20010319; CN 1187624 C 20050202; CN 1376269 A 20021023; EP 1236055 A1 20020904; WO 0114909 A1 20010301

INPADOC legal status


2005-01-26 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040723

2004-09-15 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: USINOR

2004-09-15 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: ZIETRONIC

2002-09-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020326

2002-09-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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