EP 1230564 A1 20020814 - X-RAY BEAM POSITION MONITOR
Title (en)
X-RAY BEAM POSITION MONITOR
Title (de)
MONITOR ZUR BESTIMMUNG DER LAGE EINES RÖNTGENSTRAHLS
Title (fr)
MONITEURS DE POSITION DE FAISCEAUX DE RAYONS X
Publication
Application
Priority
- GB 0003917 W 20001012
- GB 9926933 A 19991116
Abstract (en)
[origin: WO0136998A1] An X-ray beam position monitor has a first series of three collection electrodes (1a, 1b, 1c) and a first biasing electrode (3) for detecting the rotational position of the X-ray beam about a vertical axis (26). The monitor also has a second series of three collection electrodes (5a, 5b, 5c) and a second biasing electrode (7) for detecting the rotational position of the X-ray beam about a horizontal axis (27). Signals generated at the collection electrodes are processed and used to derive the rotational position of the beam about the two axes (26, 27). These signals are also used to derive the translational position of the X-ray beam in horizontal and vertical planes. The beam is centered so that the monitor acts as a null-seeking monitor.
IPC 1-7
IPC 8 full level
G01T 1/18 (2006.01); G01T 1/26 (2006.01); G01T 1/29 (2006.01)
CPC (source: EP)
Citation (search report)
See references of WO 0136998A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0136998 A1 20010525; AU 7676800 A 20010530; AU 767730 B2 20031120; CA 2387794 A1 20010525; EP 1230564 A1 20020814; GB 2356928 A 20010606; GB 2356928 B 20020911; GB 9926933 D0 20000112; JP 2003515142 A 20030422
DOCDB simple family (application)
GB 0003917 W 20001012; AU 7676800 A 20001012; CA 2387794 A 20001012; EP 00966329 A 20001012; GB 9926933 A 19991116; JP 2001538831 A 20001012