GB1033029A - Irradiation apparatus utilizing electron beams - Google Patents

Irradiation apparatus utilizing electron beams

Info

Publication number
GB1033029A
GB1033029A GB18910/63A GB1891063A GB1033029A GB 1033029 A GB1033029 A GB 1033029A GB 18910/63 A GB18910/63 A GB 18910/63A GB 1891063 A GB1891063 A GB 1891063A GB 1033029 A GB1033029 A GB 1033029A
Authority
GB
United Kingdom
Prior art keywords
anode
field emission
cathode
cathodes
supported
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
GB18910/63A
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.)
Field Emission Corp
Original Assignee
Field Emission Corp
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 Field Emission Corp filed Critical Field Emission Corp
Publication of GB1033029A publication Critical patent/GB1033029A/en
Expired legal-status Critical Current

Links

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
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/04—Irradiation devices with beam-forming means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/22—X-ray tubes specially designed for passing a very high current for a very short time, e.g. for flash operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

1,033,029. Electron beam apparatus. FIELD EMISSION CORPORATION. May 13, 1963 [Oct. 22, 1962], No. 18910/63. Heading H1D. Apparatus for irradiating substances with pulses of high velocity electrons comprises a field emission cathode and a thin walled anode through which the electrons pass. As shown, the anode 30 at the end of support tube 32 is hollow and open to the atmosphere so that a container or holder for the substance to be irradiated can be inserted by means of handle 46. The anode is surrounded within the envelope 10 by four diametrically arranged field emission cathodes 22, each comprising a supporting block for an array of sharp needle points 26. The cathodes are supported by arcuate elements 20 which also provide a focusing structure. The cathode blocks may be of copper, the needle points of tungsten and the anode of beryllium, titanium or molybdenum. Suitable dimensions are given. Sufficiently high voltages are supplied to the cathodes to cause the vapourization of metal from the cathode so that vacuum arc operation occurs. In another embodiment, Fig. 4 (not shown), a field emission cathode is opposite a window in an oval-shaped anode and envelope closure element. Three such tubes may be supported in a triangular support, around an irradiation space.
GB18910/63A 1962-10-22 1963-05-13 Irradiation apparatus utilizing electron beams Expired GB1033029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US232021A US3173006A (en) 1962-10-22 1962-10-22 Short pulse-high energy electron radiation tube

Publications (1)

Publication Number Publication Date
GB1033029A true GB1033029A (en) 1966-06-15

Family

ID=22871557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18910/63A Expired GB1033029A (en) 1962-10-22 1963-05-13 Irradiation apparatus utilizing electron beams

Country Status (3)

Country Link
US (1) US3173006A (en)
DE (2) DE1225310B (en)
GB (1) GB1033029A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482096A (en) * 1965-08-02 1969-12-02 Field Emission Corp High energy field emission electron radiation pulse generator,x-ray apparatus and system employing same
US3428803A (en) * 1965-08-23 1969-02-18 Field Emission Corp Apparatus for simultaneously producing x-ray and electron radiographs of the same object
CH484585A (en) * 1967-04-10 1970-01-15 Inst Fizica Atomica Method of linear acceleration of ions or electrons, and device for carrying out this method
US3890503A (en) * 1968-11-29 1975-06-17 Hewlett Packard Co Stimulated emission light source pumped by electron beam of field emission initiated vacuum arc
US3833814A (en) * 1973-06-20 1974-09-03 Energy Sciences Inc Apparatus for simultaneously uniformly irradiating a region using plural grid controlled electron guns
DE4002049C2 (en) * 1990-01-24 1993-12-09 Deutsche Forsch Luft Raumfahrt Electron emission source and device for irradiating media with such an electron emission source
US5530255A (en) * 1990-08-17 1996-06-25 Raychem Corporation Apparatus and methods for electron beam irradiation
US5416440A (en) * 1990-08-17 1995-05-16 Raychem Corporation Transmission window for particle accelerator
JP6072023B2 (en) * 2011-07-04 2017-02-01 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． Electron beam apparatus and method for manufacturing electron beam apparatus
CN106935476A (en) * 2016-08-03 2017-07-07 成都青岗科技有限公司 A kind of small ultraviolet photoelectric tube
CN106952800A (en) * 2016-08-03 2017-07-14 成都青岗科技有限公司 A kind of ultraviolet phototube
TWI782418B (en) * 2021-02-09 2022-11-01 能資國際股份有限公司 Method and device for driving high-voltage electron radiation tube with positive and negative pulses

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE395823C (en) * 1924-05-23 Julius Edgar Lilienfeld Dr Device for generating X-rays
US897279A (en) * 1906-12-17 1908-09-01 Reginald A Fessenden Means for generating high-frequency electric oscillations.
US1385121A (en) * 1920-03-23 1921-07-19 Augustus Taylor Arc-radio-oscillation generator
DE541710C (en) * 1926-12-24 1932-01-19 C H F Mueller Akt Ges Cathode ray tubes with a ray exit window cooled by a coolant
AT129099B (en) * 1929-07-27 1932-07-11 Philips Nv Electron tube.
US1970532A (en) * 1929-07-27 1934-08-14 Philips Nv Electric discharge tube
CH227433A (en) * 1941-02-18 1943-06-15 Hermann Dr Med Mueller Discharge tube for generating radiation that occurs outside the tube.
DE869099C (en) * 1949-10-28 1953-03-01 Johannes Dr-Ing Perthen Electron tubes with cold cathode
US2907704A (en) * 1957-07-19 1959-10-06 High Voltage Engineering Corp Electron irradiation
NL108183C (en) * 1958-07-17
AT213508B (en) * 1958-07-17 1961-02-27 Philips Nv Method of manufacturing a cathode for an electric discharge tube

Also Published As

Publication number Publication date
DE1225310B (en) 1966-09-22
DE1938172U (en) 1966-05-12
US3173006A (en) 1965-03-09

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