GB1530449A - Electron beam collimator - Google Patents

Electron beam collimator

Info

Publication number
GB1530449A
GB1530449A GB46891/75A GB4689175A GB1530449A GB 1530449 A GB1530449 A GB 1530449A GB 46891/75 A GB46891/75 A GB 46891/75A GB 4689175 A GB4689175 A GB 4689175A GB 1530449 A GB1530449 A GB 1530449A
Authority
GB
United Kingdom
Prior art keywords
sections
rods
electron beam
sides
angular
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
Application number
GB46891/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MEL EQUIPMENT CO Ltd
Original Assignee
MEL EQUIPMENT CO Ltd
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 MEL EQUIPMENT CO Ltd filed Critical MEL EQUIPMENT CO Ltd
Priority to GB46891/75A priority Critical patent/GB1530449A/en
Priority to DE2649393A priority patent/DE2649393C3/de
Priority to FR7633869A priority patent/FR2331868A1/fr
Priority to SE7612495A priority patent/SE410249B/xx
Priority to CA265,301A priority patent/CA1070440A/en
Priority to JP51135487A priority patent/JPS5263784A/ja
Priority to US05/741,376 priority patent/US4053808A/en
Publication of GB1530449A publication Critical patent/GB1530449A/en
Priority to JP1980118075U priority patent/JPS5661500U/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—HANDLING OF PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/14—Tubes with means for concentrating the electron stream, e.g. beam tetrode

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Radiation-Therapy Devices (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Particle Accelerators (AREA)
GB46891/75A 1975-11-13 1975-11-13 Electron beam collimator Expired GB1530449A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB46891/75A GB1530449A (en) 1975-11-13 1975-11-13 Electron beam collimator
DE2649393A DE2649393C3 (de) 1975-11-13 1976-10-29 ElektronenstrahlkoUimator
FR7633869A FR2331868A1 (fr) 1975-11-13 1976-11-10 Tube-collimateur de faisceau electronique
SE7612495A SE410249B (sv) 1975-11-13 1976-11-10 Elektronstralekollimator
CA265,301A CA1070440A (en) 1975-11-13 1976-11-10 Electron beam collimator
JP51135487A JPS5263784A (en) 1975-11-13 1976-11-12 Electron beam collimater
US05/741,376 US4053808A (en) 1975-11-13 1976-11-12 Electron beam collimator
JP1980118075U JPS5661500U (https=) 1975-11-13 1980-08-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46891/75A GB1530449A (en) 1975-11-13 1975-11-13 Electron beam collimator

Publications (1)

Publication Number Publication Date
GB1530449A true GB1530449A (en) 1978-11-01

Family

ID=10442968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46891/75A Expired GB1530449A (en) 1975-11-13 1975-11-13 Electron beam collimator

Country Status (7)

Country Link
US (1) US4053808A (https=)
JP (2) JPS5263784A (https=)
CA (1) CA1070440A (https=)
DE (1) DE2649393C3 (https=)
FR (1) FR2331868A1 (https=)
GB (1) GB1530449A (https=)
SE (1) SE410249B (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759073C3 (de) * 1977-12-30 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Elektronentubus
US4158143A (en) * 1978-04-07 1979-06-12 Bbc Brown, Boveri & Company Limited Tube for irradiation equipment
US4314158A (en) * 1980-04-01 1982-02-02 Siemens Medical Laboratories, Inc. Electron applicator for a linear accelerator
US4550258A (en) * 1982-07-27 1985-10-29 Nippon Telegraph & Telephone Public Corporation Aperture structure for charged beam exposure
US4739173A (en) * 1986-04-11 1988-04-19 Board Of Trustees Operating Michigan State University Collimator apparatus and method
EP0398335B1 (en) * 1989-05-17 1996-05-01 KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. Converged ion beam apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1959756A (en) * 1931-08-19 1934-05-22 Pittsburgh Crucible Steel Comp Columnar structure
US2840257A (en) * 1957-06-12 1958-06-24 Zeni Adolph Expandable container
GB1414843A (en) * 1973-04-17 1975-11-19 Mel Equipment Co Ltd Electron collimator
DE2446680C3 (de) * 1974-09-30 1980-10-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Tubus zur Begrenzung eines Bündels durchdringender Strahlen

Also Published As

Publication number Publication date
SE410249B (sv) 1979-10-01
SE7612495L (sv) 1977-05-14
DE2649393A1 (de) 1977-05-26
DE2649393C3 (de) 1980-11-13
CA1070440A (en) 1980-01-22
JPS5263784A (en) 1977-05-26
FR2331868B1 (https=) 1982-05-14
FR2331868A1 (fr) 1977-06-10
JPS5661500U (https=) 1981-05-25
DE2649393B2 (https=) 1980-03-20
US4053808A (en) 1977-10-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee