EP0059249B1 - Fenêtre transparente pour rayons - Google Patents
Fenêtre transparente pour rayons Download PDFInfo
- Publication number
- EP0059249B1 EP0059249B1 EP81108935A EP81108935A EP0059249B1 EP 0059249 B1 EP0059249 B1 EP 0059249B1 EP 81108935 A EP81108935 A EP 81108935A EP 81108935 A EP81108935 A EP 81108935A EP 0059249 B1 EP0059249 B1 EP 0059249B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foil
- intermediate pieces
- outlet window
- radiation outlet
- welding
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J33/00—Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes
- H01J33/02—Details
- H01J33/04—Windows
Definitions
- the invention relates to a radiation exit window of an accelerator device consisting of a metal frame made of an iron or copper material and a film made of another material with a significantly smaller atomic number, which seals the accelerator chamber under high vacuum from the outside atmosphere in a highly vacuum-tight manner, and to a method for its production .
- a radiation exit window of an accelerator device consisting of a metal frame made of an iron or copper material and a film made of another material with a significantly smaller atomic number, which seals the accelerator chamber under high vacuum from the outside atmosphere in a highly vacuum-tight manner, and to a method for its production .
- Such a window and a method for its production are already known from EP-A-0 023 272.
- the rays generated In devices for accelerating load carriers, e.g. B. of electrons, the rays generated must be discharged from the accelerator chamber under high vacuum to the atmosphere for technical or medical purposes. This is done using so-called radiation exit windows. To ensure the radiation quality - the radiation should remain monochromatic and not diffusely scattered when it passes through the window - these radiation exit windows must be sealed in a vacuum-tight manner with the thinnest possible films made of a material with a small atomic number. To hold the window, the aforementioned metal frame is provided, which can in particular consist of iron or copper material.
- the object is achieved in that the film is connected to the metal frame on one side via one or both sides via two intermediate pieces, and in that the intermediate pieces and the film consist of the same or similar materials and are connected to one another by fusion welding.
- the film can be arranged, for example, between two intermediate pieces in the interior of the metal frame or between two intermediate pieces at the outer end of the metal frame.
- the metal frame can e.g. B. made of stainless steel or copper. Foils made of aluminum or titanium are particularly advantageous for ensuring the radiation quality.
- the intermediate pieces advantageously consist of aluminum, aluminum alloys, titanium or titanium alloys.
- the vacuum-tight connection between the intermediate pieces and the metal frame is produced by friction welding, explosion welding, rolling or cold pressure welding; the film is welded to the spacers by fusion welding, e.g. B. connected by means of electron beams, laser beams or arcs, vacuum-tight.
- Fig. 1 an exit window is shown in a schematic representation, in which the film is located inside the metal frame.
- the tubular socket 12 made of stainless steel
- two intermediate pieces 13, 14 made of aluminum by friction welding or cold pressure welding are used.
- the weld seams are designated 15.
- Between the intermediate pieces 13 and 14 is an aluminum foil 11 of a thickness z. B. between 60 and 100 microns welded vacuum-tight by means of electron beams.
- Fig. 2 shows a schematic representation of an exit window in which the film is located on the outer end of the socket.
- the tubular socket 22 is made of copper. From the upper end of the tubular socket 22, the annular intermediate piece 23 is welded from an aluminum alloy by means of friction welding. The, friction weld is designated 25.
- the titanium foil 21 is arranged on the intermediate piece 23 and a further aluminum ring 24 is arranged on the foil 21. Intermediate piece 23, film 21, and ring 24 are connected to one another in a vacuum-tight manner by means of laser beam welding.
- the aluminum ring 24 serves as a protective ring for the film 21 and protects it from external mechanical damage.
- Fig. 3 shows a schematic representation of an exit window in which the film is also. as shown in Fig. 2, located on the outer end of the tubular socket, but without a protective ring.
- the socket 32 is made of stainless steel.
- the aluminum foil 31 is welded onto the intermediate piece 33, which consists of a titanium alloy, by means of electron beam welding.
- the intermediate piece 33 is connected to the socket 32 by means of cold pressure welding.
- the cold press weld is designated 34.
Landscapes
- Particle Accelerators (AREA)
- Laser Beam Processing (AREA)
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3108006 | 1981-03-03 | ||
DE19813108006 DE3108006A1 (de) | 1981-03-03 | 1981-03-03 | Strahlenaustrittsfenster |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0059249A2 EP0059249A2 (fr) | 1982-09-08 |
EP0059249A3 EP0059249A3 (en) | 1982-12-08 |
EP0059249B1 true EP0059249B1 (fr) | 1985-01-30 |
Family
ID=6126217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81108935A Expired EP0059249B1 (fr) | 1981-03-03 | 1981-10-26 | Fenêtre transparente pour rayons |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0059249B1 (fr) |
JP (1) | JPS57158600A (fr) |
DE (1) | DE3108006A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10032596B2 (en) | 2009-03-11 | 2018-07-24 | Tetra Laval Holdings & Finance S.A. | Method for assembling an electron exit window and an electron exit window assembly |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0104938B1 (fr) * | 1982-09-29 | 1989-03-22 | Tetra Laval Holdings & Finance SA | Assemblage de fenêtre perméable aux faisceaux d'électrons facilement amovible |
JPS6074300A (ja) * | 1983-09-30 | 1985-04-26 | 高エネルギー物理学研究所長 | シンクロトロン放射用ベリリウム窓の製造方法 |
US5962995A (en) * | 1997-01-02 | 1999-10-05 | Applied Advanced Technologies, Inc. | Electron beam accelerator |
DE10050810A1 (de) * | 2000-10-13 | 2002-04-18 | Philips Corp Intellectual Pty | Verfahren zur Herstellung eines elektronenstrahltransparenten Fensters sowie elektronenstrahltransparentes Fenster |
DE102008051519B4 (de) * | 2008-10-13 | 2012-08-30 | rtw RÖNTGEN-TECHNIK DR. WARRIKHOFF GmbH & Co. KG | Elektronenstrahler mit Austrittsfenster sowie Röntgenstrahler |
JP5974495B2 (ja) * | 2012-01-19 | 2016-08-23 | Jfeエンジニアリング株式会社 | 粒子線透過窓の製作方法 |
JP6843023B2 (ja) * | 2017-09-12 | 2021-03-17 | 日立造船株式会社 | 電子線照射装置およびその製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222558A (en) * | 1961-05-22 | 1965-12-07 | Gen Electric | Vanadium window for an atomic particle and radiation emitting device |
EP0023272A1 (fr) * | 1979-07-03 | 1981-02-04 | Siemens Aktiengesellschaft | Fenêtre de passage pour un rayonnement et procédé pour sa fabrication |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE333700A (fr) * | 1925-04-28 | |||
NL28901C (fr) * | 1927-12-24 | |||
US3440466A (en) * | 1965-09-30 | 1969-04-22 | Ford Motor Co | Window support and heat sink for electron-discharge device |
DE2151079A1 (de) * | 1971-10-13 | 1973-04-19 | Siemens Ag | Strahlendurchtrittsfenster |
US4061944A (en) * | 1975-06-25 | 1977-12-06 | Avco Everett Research Laboratory, Inc. | Electron beam window structure for broad area electron beam generators |
-
1981
- 1981-03-03 DE DE19813108006 patent/DE3108006A1/de not_active Withdrawn
- 1981-10-26 EP EP81108935A patent/EP0059249B1/fr not_active Expired
-
1982
- 1982-02-25 JP JP2976282A patent/JPS57158600A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3222558A (en) * | 1961-05-22 | 1965-12-07 | Gen Electric | Vanadium window for an atomic particle and radiation emitting device |
EP0023272A1 (fr) * | 1979-07-03 | 1981-02-04 | Siemens Aktiengesellschaft | Fenêtre de passage pour un rayonnement et procédé pour sa fabrication |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10032596B2 (en) | 2009-03-11 | 2018-07-24 | Tetra Laval Holdings & Finance S.A. | Method for assembling an electron exit window and an electron exit window assembly |
Also Published As
Publication number | Publication date |
---|---|
EP0059249A3 (en) | 1982-12-08 |
JPS57158600A (en) | 1982-09-30 |
EP0059249A2 (fr) | 1982-09-08 |
DE3108006A1 (de) | 1982-09-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19811026 |
|
AK | Designated contracting states |
Designated state(s): FR GB SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): FR GB SE |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): FR GB SE |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19861027 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19870630 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
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PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19881121 |
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EUG | Se: european patent has lapsed |
Ref document number: 81108935.8 Effective date: 19870812 |