JP4629552B2 - X線管用フィラメント及びx線管 - Google Patents
X線管用フィラメント及びx線管 Download PDFInfo
- Publication number
- JP4629552B2 JP4629552B2 JP2005306547A JP2005306547A JP4629552B2 JP 4629552 B2 JP4629552 B2 JP 4629552B2 JP 2005306547 A JP2005306547 A JP 2005306547A JP 2005306547 A JP2005306547 A JP 2005306547A JP 4629552 B2 JP4629552 B2 JP 4629552B2
- Authority
- JP
- Japan
- Prior art keywords
- filament
- wire diameter
- ray tube
- longitudinal direction
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
- H01J1/16—Cathodes heated directly by an electric current characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/064—Details of the emitter, e.g. material or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/28—Heaters for thermionic cathodes
- H01J2201/2803—Characterised by the shape or size
- H01J2201/2867—Spiral or helix
Landscapes
- X-Ray Techniques (AREA)
Description
12 線材
14 リード線
22 ガラス容器
24 電解研磨液
26 電極棒
30 電源
38 回転対陰極
40 電子ビーム
42,44 X線ビーム
Claims (3)
- コイル状のX線管用フィラメントにおいて,
長手方向の中央部から端部に向かってコイルの線径が順に細くなっていて,
長手方向の中央部から端部に向かってコイルの内径が増加していき,
長手方向に沿ってコイルの外径が一定であることを特徴とするX線管用フィラメント。 - 請求項1に記載のX線管用フィラメントにおいて,長手方向の中央部における線径dmaxと長手方向の端部における線径dminとの差Δdが,次の数式を満足することを特徴とするX線管用フィラメント。
Δd/dmax=0.041〜0.145 - 請求項1または2に記載のX線管用フィラメントを備えるX線管。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005306547A JP4629552B2 (ja) | 2005-10-21 | 2005-10-21 | X線管用フィラメント及びx線管 |
US11/583,747 US7271530B2 (en) | 2005-10-21 | 2006-10-19 | Filament for X-ray tube and X-ray tube having the same |
EP06022086A EP1777727B1 (en) | 2005-10-21 | 2006-10-20 | Filament for X-ray tube and X-ray tube having the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005306547A JP4629552B2 (ja) | 2005-10-21 | 2005-10-21 | X線管用フィラメント及びx線管 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007115551A JP2007115551A (ja) | 2007-05-10 |
JP4629552B2 true JP4629552B2 (ja) | 2011-02-09 |
Family
ID=37533283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005306547A Expired - Fee Related JP4629552B2 (ja) | 2005-10-21 | 2005-10-21 | X線管用フィラメント及びx線管 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7271530B2 (ja) |
EP (1) | EP1777727B1 (ja) |
JP (1) | JP4629552B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4669428B2 (ja) * | 2005-04-19 | 2011-04-13 | 株式会社リガク | X線管 |
US7352846B2 (en) * | 2005-10-21 | 2008-04-01 | Rigaku Corporation | Filament for X-ray tube and X-ray tube having the same |
EP1983546A1 (en) * | 2007-04-20 | 2008-10-22 | PANalytical B.V. | X-ray cathode and tube |
CN103268848B (zh) * | 2013-05-31 | 2015-09-02 | 南京三乐电子信息产业集团有限公司 | 一种连续波磁控管阴极的制备方法 |
US9953797B2 (en) * | 2015-09-28 | 2018-04-24 | General Electric Company | Flexible flat emitter for X-ray tubes |
US11147528B2 (en) * | 2019-08-16 | 2021-10-19 | GE Precision Healthcare LLC | Methods and systems for X-ray tube conditioning |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5299776U (ja) * | 1976-01-26 | 1977-07-28 | ||
JPS5575060U (ja) * | 1978-11-17 | 1980-05-23 | ||
JPS5826144B2 (ja) * | 1978-03-01 | 1983-06-01 | 松下電子工業株式会社 | 管球およびその製造方法 |
JPH07211273A (ja) * | 1994-01-20 | 1995-08-11 | Rigaku Corp | X線発生装置用フィラメント |
JPH09265958A (ja) * | 1996-03-29 | 1997-10-07 | Mineta Seisakusho:Kk | コイルフィラメント |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3631289A (en) * | 1969-05-23 | 1971-12-28 | Picker Corp | X-ray filament with balanced emission |
JPS63232264A (ja) | 1987-03-20 | 1988-09-28 | 東芝ライテック株式会社 | 管形電球 |
JPH01161547U (ja) | 1988-04-30 | 1989-11-09 | ||
JPH05242842A (ja) | 1992-02-26 | 1993-09-21 | Toshiba Corp | X線管の陰極構体 |
JPH069047U (ja) | 1992-07-03 | 1994-02-04 | 株式会社日立メディコ | X線管 |
JPH09320476A (ja) * | 1996-05-27 | 1997-12-12 | Sanyo Electric Co Ltd | マグネトロン |
JPH10334839A (ja) | 1997-05-29 | 1998-12-18 | Hitachi Medical Corp | X線管 |
JP2001297725A (ja) | 2000-04-13 | 2001-10-26 | Hitachi Medical Corp | X線管装置 |
US6356619B1 (en) * | 2000-06-02 | 2002-03-12 | General Electric Company | Varying x-ray tube focal spot dimensions to normalize impact temperature |
US7327829B2 (en) * | 2004-04-20 | 2008-02-05 | Varian Medical Systems Technologies, Inc. | Cathode assembly |
US7352846B2 (en) * | 2005-10-21 | 2008-04-01 | Rigaku Corporation | Filament for X-ray tube and X-ray tube having the same |
-
2005
- 2005-10-21 JP JP2005306547A patent/JP4629552B2/ja not_active Expired - Fee Related
-
2006
- 2006-10-19 US US11/583,747 patent/US7271530B2/en not_active Expired - Fee Related
- 2006-10-20 EP EP06022086A patent/EP1777727B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5299776U (ja) * | 1976-01-26 | 1977-07-28 | ||
JPS5826144B2 (ja) * | 1978-03-01 | 1983-06-01 | 松下電子工業株式会社 | 管球およびその製造方法 |
JPS5575060U (ja) * | 1978-11-17 | 1980-05-23 | ||
JPH07211273A (ja) * | 1994-01-20 | 1995-08-11 | Rigaku Corp | X線発生装置用フィラメント |
JPH09265958A (ja) * | 1996-03-29 | 1997-10-07 | Mineta Seisakusho:Kk | コイルフィラメント |
Also Published As
Publication number | Publication date |
---|---|
US20070090744A1 (en) | 2007-04-26 |
EP1777727A3 (en) | 2009-10-21 |
JP2007115551A (ja) | 2007-05-10 |
US7271530B2 (en) | 2007-09-18 |
EP1777727A2 (en) | 2007-04-25 |
EP1777727B1 (en) | 2011-09-07 |
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