# US 10,504,679 B2 · X-ray generating apparatus and radiography system including the same

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- Number: US 10,504,679 B2
- Document ID: US10504679B2
- Status: Granted
- Kind: B2
- Application number: 15/739,965
- Filed: 2016-06-29
- Published: 2018-06-28
- Granted: 2019-12-10
- Earliest claimed: 2015-07-02
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Yasuo Ohashi
- Web page: https://patentgrep.com/patent/US10504679B2

## CPC

- H01J 35/112: {Non-rotating anodes (H01J35/12 takes precedence)}
- H05G 1/06: X-ray tube and at least part of the power supply apparatus being mounted within the same housing
- H01J 35/116: {Transmissive anodes (acting as a window H01J35/186)}
- H01J 2235/083: Bonding or fixing with the support or substrate
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)
- H05G: X-RAY TECHNIQUE (investigating or analysing materials by the use of X-rays G01N23/00; apparatus for X-ray photography G03B42/02; X-ray tubes H01J35/00; TV systems having X-ray input H04N5/321)

## Abstract

Provided is an X-ray generating apparatus in which a likelihood that an anode member may be deformed by heat deformation of a container is eliminated or reduced to maintain a positional relationship between an electron source and a transmission target within a predetermined range, and stable output of X-rays is achieved. The X-ray generating apparatus includes an X-ray generating tube and the container that accommodates the X-ray generating tube. The X-ray generating tube includes an anode that includes the transmission target and an anode member holding the transmission target. The anode member is sandwiched together with a deformable member between the container and a retaining member secured to the container, thus connecting the X-ray generating tube to the container.

## Claims

### Claim 1

An X-ray generating apparatus comprising:
an X-ray generating tube; and
a container that accommodates the X-ray generating tube, the X-ray generating tube including an anode that includes a transmission target configured to generate X-rays and an anode member holding the transmission target, the anode member being sandwiched together with a deformable member between the container and a retaining member secured to the container, thus connecting the X-ray generating tube to the container.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein there is an overlapped portion in any at least three of the anode member, the deformable member, the retaining member, and the container in a radial direction of the X-ray generating tube.

### Claim 3 (depends on 1)

The apparatus according to claim 1, wherein the deformable member is in contact with the anode member.

### Claim 4 (depends on 1)

The apparatus according to claim 1, wherein the deformable member continuously extends in a circumferential direction of the X-ray generating tube.

### Claim 5 (depends on 1)

The apparatus according to claim 1, wherein the deformable member deforms elastically or plastically.

### Claim 6 (depends on 1)

The apparatus according to claim 1, wherein the deformable member has a lower Young's modulus than the container, the retaining member, and the anode member.

### Claim 7 (depends on 6)

The apparatus according to claim 6, wherein the Young's modulus of the deformable member is greater than or equal to 0.001 GPa and less than or equal to 130 GPa.

### Claim 8 (depends on 7)

The apparatus according to claim 7, wherein the Young's modulus of the deformable member is greater than or equal to 0.001 GPa and less than or equal to 0.1 GPa.

### Claim 9 (depends on 8)

The apparatus according to claim 8, wherein the deformable member comprises nitrile rubber.

### Claim 10 (depends on 6)

The apparatus according to claim 6, wherein the container has a lower Young's modulus than the retaining member and the anode member.

### Claim 11 (depends on 1)

The apparatus according to claim 1, wherein an inside space of the container is filled with an insulating fluid.

### Claim 12 (depends on 1)

A radiography system comprising:
the X-ray generating apparatus according to claim 1;
an X-ray detecting apparatus configured to detect X-rays emitted from the X-ray generating apparatus and penetrated through an object; and
a system controller configured to control the X-ray generating apparatus and the X-ray detecting apparatus such that these apparatuses work in collaboration with each other.