Source: https://patents.google.com/patent/US20050041780A1/en
Timestamp: 2018-07-18 03:37:31
Document Index: 469901148

Matched Legal Cases: ['Application No. 02', 'art 22', 'art 23', 'art 21', 'art 23', 'art 22', 'art 22']

US20050041780A1 - X-rays emitter and X-ray apparatus and method of manufacturing an X-ray emitter - Google Patents
X-rays emitter and X-ray apparatus and method of manufacturing an X-ray emitter Download PDF
US20050041780A1
US20050041780A1 US10668541 US66854103A US2005041780A1 US 20050041780 A1 US20050041780 A1 US 20050041780A1 US 10668541 US10668541 US 10668541 US 66854103 A US66854103 A US 66854103A US 2005041780 A1 US2005041780 A1 US 2005041780A1
US10668541
US7197114B2 (en )
Caroline Le-Pierrard
Yves Serughetti
Joel Beudard
This application claims the benefit of a priority under 35 USC 119(a)-(d) to French Patent Application No. 02 11919 filed Sep. 26, 2002, the entire contents of which are hereby incorporated by reference.
The X-ray emitter further comprises an anode assembly 20 provided with an anode 21 in the shape of a disc, a rotating part 22 supporting the anode 21 and a non-rotating part 23 supporting the rotating part 21 and being fastened at its respective ends to the body 16. The anode 21 is placed in the central portion 18 of the body 16 and the rotating 22 and non-rotating 23 parts are mainly placed in the cylindrical portion 17 of the body 16. Alternatively, it would be possible to design a non-rotating part fastened at only one of its ends to the body 16. Bearings 24 are placed between the non-rotating part 23 and the rotating part 22 in order to allow high-speed rotation of the rotating part 22.
The connector may be made from a ceramic. The connector is thus suitable firstly for the mechanical stresses due to the vacuum inside the X-ray tube and to the atmospheric pressure outside the X-ray tube, secondly for the actual vacuum sealing, thirdly for sufficient opacity to the X-rays, and fourthly for high electrical insulation and for appropriate thermal resistance. The term “vacuum” is understood to mean the vacuum called a “secondary” vacuum with a pressure of between 10-3 and 10-9 torr.
C. a vacuum evacuated body in which the anode and the cathode are placed;
d. an opening the body; and
e. a high-voltage connector placed in the opening, the connector closing off the opening in a vacuum-tight manner,
f. thereby subjecting the connector to a vacuum on one side of the cathode and to ambient air on an opposite side.
4. The emitter according to claim 1 wherein the body is made of metal.
5. The emitter according to claim 2 wherein the body is made of metal.
6. The emitter according to claim 3 wherein the body is made of metal.
7. The emitter according to claim 1 wherein the body comprises a material having an atomic number less than 82.
8. The emitter according to claim 2 wherein the body comprises a material having an atomic number less than 82.
9. The emitter according to claim 3 wherein the body comprises a material having an atomic number less than 82.
10. The emitter according to claim 4 wherein the body comprises a material having an atomic number less than 82.
11. The emitter according claim 1 wherein the body comprises a cylindrical portion forming the opening, the connector being placed and fastened into the cylindrical portion.
12. The emitter according claim 2 wherein the body comprises a cylindrical portion forming the opening, the connector being placed and fastened into the cylindrical portion.
13. The emitter according claim 3 wherein the body comprises a cylindrical portion forming the opening, the connector being placed and fastened into the cylindrical portion.
14. The emitter according claim 4 wherein the body comprises a cylindrical portion forming the opening, the connector being placed and fastened into the cylindrical portion.
15. The emitter according claim 5 wherein the body comprises a cylindrical portion forming the opening, the connector being placed and fastened into the cylindrical portion.
16. The emitter according to claim 1 wherein the connector is made from a ceramic.
17. The emitter according to claim 2 wherein the connector is made from a ceramic.
18. The emitter according to claim 3 wherein the connector is made from a ceramic.
19. The emitter according to claim 4 wherein the connector is made from a ceramic.
20. The emitter according to claim 5 wherein the connector is made from a ceramic.
21. The emitter according to claim 6 wherein the connector is made from a ceramic.
22. The emitter according to claim 1 wherein the connector is made from an electrically insulating oxide.
23. The emitter according to claim 2 wherein the connector is made from an electrically insulating oxide.
25. The emitter according to claim 3 wherein the connector is made from an electrically insulating oxide.
26. The emitter according to claim 4 wherein the connector is made from an electrically insulating oxide.
27. The emitter according to claim 5 wherein the connector is made from an electrically insulating oxide.
28. The emitter according to claim 6 wherein the connector is made from an electrically insulating oxide.
29. The emitter according to claim 7 wherein the connector is made from an electrically insulating oxide.
30. The emitter according to claim 7 wherein the connector comprises aluminum.
31. The emitter according to claim 8 wherein the connector comprises aluminum.
32. The emitter according to claim 9 wherein the connector is aluminum based.
33. The emitter according to claim 9 wherein the connector is aluminum based.
34. The emitter according to claim 9 wherein the connector is aluminum nitride-based.
35. The emitter according to claim 9 wherein the connector is aluminum nitride-based.
36. An X-ray apparatus comprising:
a. an X-ray emitter comprising:
(1) an anode;
(2) a cathode (30);
(3) a vacuum evacuated body (16) in which the anode and the cathode are placed;
(4) an opening (19 a) the body; and
(5) a high-voltage connector (25) placed in the opening, the connector closing off the opening in a vacuum-tight manner;
(6) thereby subjecting the connector to a vacuum on one side of the cathode and to ambient air on an opposite side; and
b. means for receiving the X-rays and capable of supplying an output signal representative of an object placed in the path of the X-rays.
37. The apparatus according to claim 36 wherein the connector is made of an insulating oxide.
38. A method of manufacturing an X-ray emitter comprising:
a. providing a body capable of being made vacuum-tight;
b. forming an opening in the body;
C. placing an anode and a cathode in the body;
d. placing a high-voltage connector in the body;
e. fastening the connector into the opening, the connector closing off the opening in a vacuum-tight manner; and
f. evacuating the body so that the body is subjected to a vacuum on the side of the cathode and to atmospheric pressure or ambient air on the opposite side.
39. The emitter according to claim 38 wherein the connector is made from an electrically insulating oxide.
US10668541 2002-09-26 2003-09-23 X-rays emitter and X-ray apparatus and method of manufacturing an X-ray emitter Active 2024-03-04 US7197114B2 (en)
FR0211919 2002-09-26
FR0211919A FR2845241B1 (en) 2002-09-26 2002-09-26 An x-ray emission and X-ray apparatus.
US20050041780A1 true true US20050041780A1 (en) 2005-02-24
US7197114B2 US7197114B2 (en) 2007-03-27
ID=31985255
US10668541 Active 2024-03-04 US7197114B2 (en) 2002-09-26 2003-09-23 X-rays emitter and X-ray apparatus and method of manufacturing an X-ray emitter
US (1) US7197114B2 (en)
FR (1) FR2845241B1 (en)
US4126803A (en) * 1974-10-11 1978-11-21 Licentia Patent-Verwaltungs-G.M.B.H. X-ray tube and apparatus including an X-ray tube
US4413356A (en) * 1978-10-16 1983-11-01 U.S. Philips Corporation Flat rotary-anode X-ray tube
DE2733123C3 (en) * 1977-07-22 1982-03-11 Rich. Seifert & Co Gmbh & Co Kg, 2070 Ahrensburg, De
FR2845241A1 (en) 2004-04-02 application
FR2845241B1 (en) 2005-04-22 grant
US7197114B2 (en) 2007-03-27 grant
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LE-PIERRARD, CAROLINE;SERUGHETTI, YVES;BIEVRES, JOEL BEUDARD;REEL/FRAME:014906/0408;SIGNING DATES FROM 20031106 TO 20031117
2008-01-29 ERR Erratum
Free format text: IN THE NOTICE OF CERTIFICATE OF CORRECTION APPEARING IN 20071009, DELETE ALL REFERENCE TO PATENT NO. 7197114, ISSUE OF 20070918. NO CERTIFICATE OF CORRECTION WAS GRANTED FOR THIS PATENT.