EP0187020A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
High-intensity X-ray source
Assignee: Varian Medical Systems Inc
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Filing: 1985-12-18
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Granted: —
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Expires: 2005-12-18
Abstract
Abstract A high-intensity X-ray source generates significant heat at the anode. To help dissipate this heat, the anode is often rotated in the vacuum. Heat must still be radiated from the anode to the exterior walls. An improved X-ray source incorporates the anode in the walls of the vacuum chamber and rotates the entire chamber. The heat is then easily conducted to the exterior where it may be dissipated by connection or forced air cooling.
Inventors
- 👤 Weston Arthur Anderson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 19:53
CPC Classifications
H; H01; H01J; H01J35/00; H01J35/02; H01J35/04; H01J35/08; H01J35/10; H01J35/105; H01J35/107; H01J35/16; H01J35/24; H01J2235/00; H01J2235/16; H01J2235/161; H01J2235/162
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
An X-ray source comprising: a rotatable vacuum chamber mounted on bearing means; an electron source within said vacuum chamber; an anode being part of the walls of said vacuum chamber; and a means for supplying high voltage connected from said electron source to said anode.
Claim 2
Dependent Claim
45 words
An X-ray source comprising: a rotatable vacuum chamber mounted on bearing means; an electron source within said vacuum chamber; an anode being part of the walls of said vacuum chamber; and a means for supplying high voltage connected from said electron source to said anode.
Claim 3
Dependent Claim
20 words
An X-ray source as in claim 1 wherein a stream of air is forced over the exterior of said anode.
Claim 4
Dependent Claim
30 words
An X-ray target of the rotatable anode type comprising part of the exterior wall of a rotatable vacuum chamber with a source of electrons mounted within the rotatable vacuum chamber.
Claim 5
Dependent Claim
30 words
An X-ray target of the rotatable anode type comprising part of the exterior wall of a rotatable vacuum chamber with a source of electrons mounted within the rotatable vacuum chamber.
Claim 6
Dependent Claim
66 words
An improvement in an X-ray source wherein the X-ray source has an electron source enclosed in a vacuum chamber and a rotatable anode and wherein the improvement comprises: a rotatable vacuum chamber having an anode as part of the wall of said chamber; with X-ray generating material on an interior surface of said anode; and means for removing heat from the exterior surface of said anode.
Claim 7
Dependent Claim
66 words
An improvement in an X-ray source wherein the X-ray source has an electron source enclosed in a vacuum chamber and a rotatable anode and wherein the improvement comprises: a rotatable vacuum chamber having an anode as part of the wall of said chamber; with X-ray generating material on an interior surface of said anode; and means for removing heat from the exterior surface of said anode.
Claim 8
Dependent Claim
16 words
An X-ray source as in claim 1 including channel means inside said anode for fluid cooling.
Claim 9
Dependent Claim
44 words
An X-ray source as in claim 1 wherein said electron source is mounted on an axis of rotation, and is symmetrical about the axis, and including a means for supplying a magnetic field fixed in space for deflecting electrons emitted by said electron source.
Claim 10
Dependent Claim
58 words
An X-ray source as in claim 1 wherein said electron source is mounted on bearings within said rotatable vacuum chamber, the bearing axis of said electron source being co-axial with the axis of rotation of the rotatable vacuum chamber, and means for maintaining said electron source fixed with respect to a mounting means of said rotatable vacuum chamber.
Claim 11
Dependent Claim
28 words
An X-ray source as in claim 1 including means for keeping an electron beam from said electron source impinging on said anode fixed at one point in space.
Claim 12
Dependent Claim
59 words
An X-ray source comprisinq: a rotatable vacuum chamber mounted on bearing means, an electron source mounted within said vacuum chamber and mounted on an axis of rotation of said vacuum chamber, a segmented anode mounted within said rotatable vacuum chamber, and commutator means for applying voltage to anode segments in a fixed spatial location with respect to the laboratory.
Claim 13
Dependent Claim
59 words
An X-ray source comprisinq: a rotatable vacuum chamber mounted on bearing means, an electron source mounted within said vacuum chamber and mounted on an axis of rotation of said vacuum chamber, a segmented anode mounted within said rotatable vacuum chamber, and commutator means for applying voltage to anode segments in a fixed spatial location with respect to the laboratory.
References Cited (Backward Citations)
No citation records indexed.
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