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WO2004066335A3 - Cathode a emission de champ a modulation thermique et technique de mesure d'intensite de faisceau - Google Patents

Cathode a emission de champ a modulation thermique et technique de mesure d'intensite de faisceau Download PDF

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Publication number
WO2004066335A3
WO2004066335A3 PCT/US2004/000974 US2004000974W WO2004066335A3 WO 2004066335 A3 WO2004066335 A3 WO 2004066335A3 US 2004000974 W US2004000974 W US 2004000974W WO 2004066335 A3 WO2004066335 A3 WO 2004066335A3
Authority
WO
WIPO (PCT)
Prior art keywords
cathode
ray
field emission
current
ray tube
Prior art date
Application number
PCT/US2004/000974
Other languages
English (en)
Other versions
WO2004066335A2 (fr
Inventor
Mark Dinsmore
Original Assignee
Zeiss Stiftung
Mark Dinsmore
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zeiss Stiftung, Mark Dinsmore filed Critical Zeiss Stiftung
Priority to JP2006500962A priority Critical patent/JP2006524881A/ja
Priority to EP04702505A priority patent/EP1588393A4/fr
Publication of WO2004066335A2 publication Critical patent/WO2004066335A2/fr
Publication of WO2004066335A3 publication Critical patent/WO2004066335A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/32—Tubes wherein the X-rays are produced at or near the end of the tube or a part thereof which tube or part has a small cross-section to facilitate introduction into a small hole or cavity
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/46—Combined control of different quantities, e.g. exposure time as well as voltage or current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/062—Cold cathodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • X-Ray Techniques (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

La présente invention a trait à une source de rayons X comportant une cathode à émission de champ en nanotube de carbone qui est chauffée par une lumière laser propagée à travers un câble de fibre optique. Le tube à rayons X dipôle obtenu permet le contrôle indépendant de tension de tube et de courant de tube. Le contrôle de la tension de tube est, de manière typique, réalisé au moyen d'une électrode de commande, tandis que le courant de tube à émission de champ est contrôlé par modulation thermique. L'invention a trait à une technique pour la mesure précise d'intensité de faisceau dans la source de rayons X. Le procédé comprend l'activation de la cathode et l'ajustement de l'intensité du laser, jusqu'à l'obtention d'un dosage souhaité de rayonnement X en sortie, suivie de la mesure du courant total du tube de rayons X. On éteint ensuite la cathode, de sorte que le faisceau d'électrons est éteint. On rallume à nouveau la cathode, immédiatement après. La différence entre les deux valeurs de courant total du tube de rayons X permet l'obtention de l'intensité exacte du faisceau du tube de rayons X.
PCT/US2004/000974 2003-01-16 2004-01-15 Cathode a emission de champ a modulation thermique et technique de mesure d'intensite de faisceau WO2004066335A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006500962A JP2006524881A (ja) 2003-01-16 2004-01-15 熱的に調節される電界放出カソード及びビーム電流測定技術
EP04702505A EP1588393A4 (fr) 2003-01-16 2004-01-15 Cathode a emission de champ a modulation thermique et technique de mesure d'intensite de faisceau

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US44045403P 2003-01-16 2003-01-16
US44048303P 2003-01-16 2003-01-16
US60/440,454 2003-01-16
US60/440,483 2003-01-16

Publications (2)

Publication Number Publication Date
WO2004066335A2 WO2004066335A2 (fr) 2004-08-05
WO2004066335A3 true WO2004066335A3 (fr) 2008-08-14

Family

ID=32776017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/000974 WO2004066335A2 (fr) 2003-01-16 2004-01-15 Cathode a emission de champ a modulation thermique et technique de mesure d'intensite de faisceau

Country Status (3)

Country Link
EP (1) EP1588393A4 (fr)
JP (1) JP2006524881A (fr)
WO (1) WO2004066335A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2009139989A (ru) * 2007-05-04 2013-11-10 Боэгли-Гравюр С.А. Способ и устройство для распознавания идентификационной метки на огибающей поверхности объекта

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324257B1 (en) * 1998-06-04 2001-11-27 X-Technologies Inc. Radiotherapeutical device and use thereof
US6799075B1 (en) * 1995-08-24 2004-09-28 Medtronic Ave, Inc. X-ray catheter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0924110A (ja) * 1995-07-11 1997-01-28 Hitachi Medical Corp 小型ｘ線源を用いた治療装置
US6463124B1 (en) * 1998-06-04 2002-10-08 X-Technologies, Ltd. Miniature energy transducer for emitting x-ray radiation including schottky cathode
JP2000164112A (ja) * 1998-11-27 2000-06-16 Matsushita Electronics Industry Corp 陰極、陰極の製造方法、電子銃
US6195411B1 (en) * 1999-05-13 2001-02-27 Photoelectron Corporation Miniature x-ray source with flexible probe
IL140025A0 (en) * 2000-11-30 2002-02-10 Medirad I R T Ltd X-ray tube with fluid cooling
WO2002102459A1 (fr) * 2001-06-19 2002-12-27 Photoelectron Corporation Source de rayonnement therapeutique a entrainement optique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799075B1 (en) * 1995-08-24 2004-09-28 Medtronic Ave, Inc. X-ray catheter
US6324257B1 (en) * 1998-06-04 2001-11-27 X-Technologies Inc. Radiotherapeutical device and use thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1588393A4 *

Also Published As

Publication number Publication date
EP1588393A4 (fr) 2009-09-30
WO2004066335A2 (fr) 2004-08-05
JP2006524881A (ja) 2006-11-02
EP1588393A2 (fr) 2005-10-26

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