[특허]Apparatus and methods for electron beam irradiation

Apparatus and methods for electron beam irradiation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01J-037/301
출원번호	US-0198163 (1994-02-17)
발명자 / 주소	Lyons Bernard J. (Menlo Park CA) Schuetz Marlin N. (Raleigh NC) Vroom David A. (Palo Alto CA)
출원인 / 주소	Raychem Corporation (Menlo Park CA 02)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

An electron beam accelerator has an accelerator tube consisting essentially of metal and ceramic components which are fused directly to each other and a transmission window generally rectangular in shape when viewed in the direction of the electron beam and is convex towards the vacuum chamber with a radius of curvature which is at most twice the width of the rectangle when measured in the absence of a pressure differential across the window. The electron beam accelerator is particularly suitable for use as a liquid material processor. The preferred transmission window of the accelerator of the invention can withstand energy transfer rates of at least 1500 watts per gram of the window material to which the energy is transferred. Certain embodiments are especially suitable for irradiating fluids to higher doses or for irradiating liquids containing suspended solids or slurries. A mobile transporter enabling relocation of the liquid material processor between process sites is also described.

대표청구항 ▼

Apparatus for irradiating a substrate comprising: (i) a vacuum chamber including a transmission window; (ii) an electron beam generator within the vacuum chamber; and (iii) an electron beam accelerator tube, within the vacuum chamber, which accelerates and directs electrons from the generator towards and through the transmission window, the accelerator tube consisting essentially of a plurality of annular metal dynode rings whose centers lie on a straight line and which are joined together through ceramic separators, the dynode rings being composed of titanium or an alloy containing titanium, and the separators being composed of alumina, said apparatus having at least one of the following characteristics: (A) the accelerator tube consists essentially of metal and ceramic components which are fused directly to each other; (B) the window is generally rectangular in shape when viewed in the direction of the electron beam and convex towards the vacuum chamber when viewed along the longitudinal axis of the window, with a radius of curvature which, when measured in the absence of a pressure differential across the window is (a) at most twice the width of the rectangle, and (b) does not deviate from the average radius of curvature by more than 5% (C) the transmission window is homogeneous and is formed from foil less than 0.5 mm thick, and the apparatus includes a housing which is (a) adjacent to an external surface of the transmission window and (b) comprises a wall presenting a surface of similar shape to the external surface of the transmission window but spaced apart therefrom, so that the transmission window and the wall, in combination, define a closed channel flow path across the transmission window for a third substrate to be irradiated; and (D) the apparatus includes a first transmission window and a second transmission window; the first transmission window being formed from a foil having a thickness of less than 0.5 mm; and the second transmission window, (a) being adjacent to an external surface of the first transmission window, (b) being formed from a foil having a thickness of less than 0.2 mm, (c) being spaced apart from the first transmission window, and (d) defining, with the first transmission window, a closed channel flow path for a cooling fluid across at least the first transmission window.

이 특허를 인용한 특허 (36)

Patel, Shekhar; Kiely, Laurence J., Apparatus and method for radiation processing of fluent food products.
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Schuetz Marlin Niles, Apparatus comprising inductive and/or power transfer and/or voltage multiplication components.
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Lyons, Stan V.; Koenck, Steven E.; Dalziel, Brian T.; White, Douglas C.; Kewley, Janette J., Bulk material irradiation system and method.
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Lyons,Stan V.; Koenck,Steven E.; Dalziel,Brian T.; White,Douglas C.; Kewley,Janette J., Bulk material irradiation system and method.
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Takagi, Noriaki, Camera.
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Goodwin, Michael E.; Jones, Nephi D.; Buchanan, Bradley H., Containers and systems for processing a fluid.
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Koenck, Steven E.; Lyons, Stan V.; Treas, Paul, Direct injection accelerator method and system.
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Koenck, Steven E.; Lyons, Stan V.; Dalziel, Brian T.; White, Douglas C.; Kewley, Janette J.; Kennedy, Von, Irradiation system and method.
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Lyons, Stan V.; Koenck, Steven E.; Dalziel, Brian T.; Kewley, Janette J., Irradiation system and method.
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Lyons, Stan V.; Koenck, Steven E.; Dalziel, Brian T.; White, Douglas C.; Kewley, Janette J., Irradiation system with compact shield.
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Koenck,Steven E.; Dalziel,Brian T.; Kennedy,Von, Method of providing extended shelf life fresh meat products.
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Walther, Steven R.; Friedman, Gerald M.; Bufano, Michael L., Methods and apparatuses for reducing heat on an emitter exit window.
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Imtiaz Rangwalla ; Harvey Clough ; George Hannafin, Particle beam processing apparatus.
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Rangwalla, Imtiaz; Clough, Harvey; Hannafin, George, Particle beam processing apparatus.
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Rangwalla,Imtiaz; Clough,Harvey; Hannafin,George, Particle beam processing apparatus and materials treatable using the apparatus.
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Rangwalla,Imtiaz; Clough,Harvey; Hannafin,George, Particle beam processing apparatus and materials treatable using the apparatus.
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Medoff, Marshall; Masterman, Thomas Craig; Paradis, Robert, Reconfigurable processing enclosures.
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Wiley, Andrea L., Shopping cart attachment.
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Wakalopulos George ; Urgiles Eduardo R., Sterilization by low energy electron beam.
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Wakalopulos,George; Urgiles,Eduardo R.; Bond,Peter, Sterilization by low energy electron beam.
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Birkenmayer, Roland, Structural member.
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Koenck, Steven E.; Lyons, Stan V., System and method for irradiation with improved dosage uniformity.
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Goodwin, Michael E.; Jones, Nephi D.; Buchanan, Bradley H., Systems and containers for sterilizing a fluid.
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Goodwin, Michael E.; Jones, Nephi D.; Buchanan, Bradley H., Systems and containers for sterilzing a fluid.
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Medoff, Marshall; Peters, Anthony; Masterman, Thomas Craig; Paradis, Robert; Ip, Kenny Kin-Chui, Treating biomass.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Apparatus and methods for electron beam irradiation 원문보기

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Apparatus and methods for electron beam irradiation 원문보기

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