X-ray or gamma ray systems or devices – Accessory – Testing or calibration
Reexamination Certificate
2006-11-27
2010-02-02
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Accessory
Testing or calibration
C378S125000, C378S144000
Reexamination Certificate
active
07654740
ABSTRACT:
X-ray tube and method for determination of focal spot properties The invention relates to an x-ray tube (1) comprising at least one cathode (3) which emits electrons accelerated towards a rotating anode (5) such that the focal spot (27) is formed on a surface (9) of the anode (5). A structure (15), in particular slits or pits (13), is disposed on the surface (9) of the anode (5). The x-ray tube (1) comprises a detector (7) for detecting a detection signal which changes, if the structure (15) on the rotating anode (5) passes the focal spot. The x-ray tube (1) further comprises determination means (6) for determining properties of the focal spot from changes of the detection signal. Thus, properties of the focal spot can be determined from changes of the detection signal during operation of the x-ray tube (1).
REFERENCES:
patent: 3940625 (1976-02-01), Hounsfield
patent: 4675892 (1987-06-01), Plessis et al.
patent: 5065420 (1991-11-01), Levene
patent: 5469429 (1995-11-01), Yamazaki et al.
patent: 6438207 (2002-08-01), Chidester et al.
patent: 2002/0101958 (2002-08-01), Bertsche
patent: 19633860 (1997-02-01), None
patent: 1132943 (2001-09-01), None
patent: 2069129 (1981-08-01), None
Behling Rolf Karl Otto
Chrost Wolfgang
Lübcke Michael
Koninklijke Philips Electronics , N.V.
Thomas Courtney
LandOfFree
X-ray tube and method for determination of focal spot... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with X-ray tube and method for determination of focal spot..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray tube and method for determination of focal spot... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4154226