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    Field emission cathode gating for RF electron guns and planar focusing cathodes
    2.
    发明申请
    Field emission cathode gating for RF electron guns and planar focusing cathodes 有权
    用于射频电子枪和平面聚焦阴极的场发射阴极门控

    公开(公告)号：US20060022598A1

    公开(公告)日：2006-02-02

    申请号：US11248661

    申请日：2005-10-11

    申请人： John Lewellen ,  John Noonan

    发明人： John Lewellen ,  John Noonan

    IPC分类号： H01J25/50

    CPC分类号： H01J3/14 ,  H01J3/021 ,  H01J23/06

    摘要： A novel method of gating electron emission from field-emitter cathodes for radio frequency (RF) electrode guns and a novel cathode that provides a focused electron beam without the need for magnetic fields or a curved cathode surface are provided. The phase and strength of a predefined harmonic field, such as the 3rd harmonic field, are adjusted relative to a fundamental field to cause a field emission cathode to emit electrons at predefined times for the generation of high-brightness electron beams. The emission time is gated responsive to the combined harmonic and fundamental fields and the response of the FE cathode to the combined fields. A planar focusing cathode includes a selected dielectric material, such as a ceramic material, to provide an electron beam emission surface. Metal surfaces are provided both radially around and behind the dielectric material to shape the electric fields that accelerate and guide the beam from the cathode surface.

    摘要翻译： 提供了一种用于射频（RF）电极枪的场发射极阴极的电子发射的新颖方法和提供聚焦电子束而不需要磁场或弯曲阴极表面的新型阴极。 预定谐波场（例如三次谐波场）的相位和强度相对于基波场被调整，以使场致发射阴极在预定时间内发射电子以产生高亮度电子束。 发射时间响应于组合谐波和基波场以及FE阴极对组合场的响应而选通。 平面聚焦阴极包括选择的介电材料，例如陶瓷材料，以提供电子束发射表面。 在电介质材料的周围和后面设置金属表面，以形成加速和引导来自阴极表面的光束的电场。

    Electron linac for medical isotope production with improved energy efficiency and isotope recovery
    3.
    发明授权
    Electron linac for medical isotope production with improved energy efficiency and isotope recovery 有权
    用于医疗同位素生产的电子线性加速器，具有改善的能量效率和同位素回收率

    公开(公告)号：US09129714B2

    公开(公告)日：2015-09-08

    申请号：US13248209

    申请日：2011-09-29

    申请人： John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

    发明人： John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

    IPC分类号： G21G1/10 ,  H05H9/00 ,  H05H7/02

    CPC分类号： G21G1/10 ,  H05H7/02 ,  H05H9/00

    摘要： A method and isotope linac system are provided for producing radio-isotopes and for recovering isotopes. The isotope linac is an energy recovery linac (ERL) with an electron beam being transmitted through an isotope-producing target. The electron beam energy is recollected and re-injected into an accelerating structure. The ERL provides improved efficiency with reduced power requirements and provides improved thermal management of an isotope target and an electron-to-x-ray converter.

    摘要翻译： 提供了一种方法和同位素线性加速器系统，用于产生放射性同位素和回收同位素。 同位素线性加速器是一种能量回收线性加速器（ERL），电子束通过同位素产生靶传输。 电子束能被回收并重新注入加速结构。 ERL通过降低功率需求提高了效率，并提供了同位素靶和电子到X射线转换器的改进的热管理。

    ELECTRON LINAC FOR MEDICAL ISOTOPE PRODUCTION WITH IMPROVED ENERGY EFFICIENCY AND ISOTOPE RECOVERY
    4.
    发明申请
    ELECTRON LINAC FOR MEDICAL ISOTOPE PRODUCTION WITH IMPROVED ENERGY EFFICIENCY AND ISOTOPE RECOVERY 有权
    用于医疗同位素生产的电子LINAC具有改善的能量效率和同位素恢复

    公开(公告)号：US20130083880A1

    公开(公告)日：2013-04-04

    申请号：US13248209

    申请日：2011-09-29

    申请人： John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

    发明人： John Noonan ,  Dean Walters ,  Matt Virgo ,  John Lewellen

    IPC分类号： G21G1/10 ,  H05H9/00

    CPC分类号： G21G1/10 ,  H05H7/02 ,  H05H9/00

    摘要： A method and isotope linac system are provided for producing radio-isotopes and for recovering isotopes. The isotope linac is an energy recovery linac (ERL) with an electron beam being transmitted through an isotope-producing target. The electron beam energy is recollected and re-injected into an accelerating structure. The ERL provides improved efficiency with reduced power requirements and provides improved thermal management of an isotope target and an electron-to-x-ray converter.

    摘要翻译： 提供了一种方法和同位素线性加速器系统，用于产生放射性同位素和回收同位素。 同位素线性加速器是一种能量回收线性加速器（ERL），电子束通过同位素产生靶传输。 电子束能被回收并重新注入加速结构。 ERL通过降低功率需求提高了效率，并提供了同位素靶和电子到X射线转换器的改进的热管理。

    High power, long focus electron source for beam processing
    5.
    发明申请
    High power, long focus electron source for beam processing 有权
    用于光束处理的大功率，长焦距电子源

    公开(公告)号：US20060061285A1

    公开(公告)日：2006-03-23

    申请号：US11143417

    申请日：2005-06-02

    申请人： John Lewellen ,  John Noonan

    发明人： John Lewellen ,  John Noonan

    IPC分类号： H01J23/08

    CPC分类号： H01J37/065 ,  H01J3/021 ,  H01J37/073 ,  H01J37/305 ,  H01J2201/317 ,  H01J2237/303 ,  H01J2237/3104 ,  H01J2237/3132

    摘要： Beam processing methods including e-beam welding and e-beam evaporation for thin film deposition are implemented with a novel high power, long focus electron source. The high power, long focus electron source generates an e-beam. The e-beam is transported through a series of steering magnets to steer the beam. At least one refocusing magnet is provided to refocus the e-beam. A final steering magnet bends the e-beam to focus on a target, such as a weld joint or a deposition target.

    摘要翻译： 包括电子束焊接和用于薄膜沉积的电子束蒸发的光束处理方法是用新的大功率长焦点电子源来实现的。 大功率长焦点电子源产生电子束。 电子束通过一系列转向磁铁传送以转向光束。 提供至少一个重新聚焦磁体以重新聚焦电子束。 最终的转向磁铁将电子束弯曲成对准目标，例如焊接接头或沉积靶。

    FIELD EMISSION CATHODE GATING FOR RF ELECTRON GUNS AND PLANAR FOCUSING CATHODES
    6.
    发明申请
    FIELD EMISSION CATHODE GATING FOR RF ELECTRON GUNS AND PLANAR FOCUSING CATHODES 有权
    射频电子枪和平面聚焦阴极的场发射阴极加热

    公开(公告)号：US20060006807A1

    公开(公告)日：2006-01-12

    申请号：US10887142

    申请日：2004-07-08

    申请人： John Lewellen ,  John Noonan

    发明人： John Lewellen ,  John Noonan

    IPC分类号： H01J25/00 ,  H01J25/10

    CPC分类号： H01J3/14 ,  H01J3/021 ,  H01J23/06

    摘要： A novel method of gating electron emission from field-emitter cathodes for radio frequency (RF) electrode guns and a novel cathode that provides a focused electron beam without the need for magnetic fields or a curved cathode surface are provided. The phase and strength of a predefined harmonic field, such as the 3rd harmonic field, are adjusted relative to a fundamental field to cause a field emission cathode to emit electrons at predefined times for the generation of high-brightness electron beams. The emission time is gated responsive to the combined harmonic and fundamental fields and the response of the FE cathode to the combined fields. A planar focusing cathode includes a selected dielectric material, such as a ceramic material, to provide an electron beam emission surface. Metal surfaces are provided both radially around and behind the dielectric material to shape the electric fields that accelerate and guide the beam from the cathode surface.

    摘要翻译： 提供了一种用于射频（RF）电极枪的场发射极阴极的电子发射的新颖方法和提供聚焦电子束而不需要磁场或弯曲阴极表面的新型阴极。 预定谐波场（例如三次谐波场）的相位和强度相对于基波场被调整，以使场致发射阴极在预定时间内发射电子以产生高亮度电子束。 发射时间响应于组合谐波和基波场以及FE阴极对组合场的响应而选通。 平面聚焦阴极包括选择的介电材料，例如陶瓷材料，以提供电子束发射表面。 在电介质材料的周围和后面设置金属表面，以形成加速和引导来自阴极表面的光束的电场。

    Laparoscopic tumor therapy using high energy electron irradiation
    8.
    发明申请
    Laparoscopic tumor therapy using high energy electron irradiation 有权
    腹腔镜肿瘤治疗使用高能电子辐射

    公开(公告)号：US20060060793A1

    公开(公告)日：2006-03-23

    申请号：US11143837

    申请日：2005-06-02

    申请人： John Lewellen ,  John Noonan

    发明人： John Lewellen ,  John Noonan

    IPC分类号： G21G5/00 ,  H01J29/46

    CPC分类号： A61N5/1001 ,  A61N2005/1089 ,  H05H15/00

    摘要： A laparoscopic tumor therapy method and an articulated electron beam transport system are provided for use with a high power, long focus electron source for tumor therapy. The high power, long focus electron source generates an e-beam. The e-beam is transported through a laparoscopic tube proximate a target tumor for electron irradiation therapy.

    摘要翻译： 提供腹腔镜肿瘤治疗方法和铰接式电子束传输系统，用于大功率，长焦点电子源用于肿瘤治疗。 大功率长焦点电子源产生电子束。 电子束通过靠近靶肿瘤的腹腔镜管输送用于电子辐射治疗。

    Method of uniformly coating a substrate
    9.
    发明授权
    Method of uniformly coating a substrate 有权
    均匀涂布基材的方法

    公开(公告)号：US06977098B2

    公开(公告)日：2005-12-20

    申请号：US09795924

    申请日：2001-02-28

    申请人： Emir Gurer ,  Tom Zhong ,  John Lewellen ,  Ed Lee ,  Robert P. Mandal ,  James C. Grambow ,  Ted C. Bettes ,  Donald R. Sauer ,  Edmond R. Ward

    发明人： Emir Gurer ,  Tom Zhong ,  John Lewellen ,  Ed Lee ,  Robert P. Mandal ,  James C. Grambow ,  Ted C. Bettes ,  Donald R. Sauer ,  Edmond R. Ward

    IPC分类号： B05C5/02 ,  B05D1/00 ,  B05D1/26 ,  B05D3/04 ,  G03F1/16 ,  H01L21/00 ,  B05D3/12

    CPC分类号： H01L21/6715 ,  B05C5/0208 ,  B05C5/0254 ,  B05D1/005 ,  B05D1/265 ,  B05D3/0486

    摘要： A method of and an apparatus for coating a substrate with a polymer solution to produce a film of uniform thickness, includes mounting the substrate inside an enclosed housing and passing a control gas, which may be a solvent vapor-bearing gas into the housing through an inlet. The polymer solution is deposited onto the surface of the substrate in the housing and the substrate is then spun. The control gas and any solvent vapor and particulate contaminants suspended in the control gas are exhausted from the housing through an outlet and the solvent vapor concentration is controlled by controlling the temperature of the housing and the solvent from which the solvent vapor-bearing gas is produced. Instead the concentration can be controlled by mixing gases having different solvent concentrations. The humidity of the gas may also be controlled.

    摘要翻译： 一种用聚合物溶液涂覆基材以产生均匀厚度的膜的方法和装置，包括将基板安装在封闭的壳体内，并将控制气体（其可以是溶剂蒸气承载气体）通过一个 进口。 聚合物溶液沉积在壳体中的基底表面上，然后旋转基底。 控制气体和悬浮在控制气体中的任何溶剂蒸汽和颗粒污染物通过出口从壳体排出，并且通过控制壳体的温度和产生溶剂蒸气的气体的溶剂来控制溶剂蒸汽浓度 。 而是可以通过混合具有不同溶剂浓度的气体来控制浓度。 也可以控制气体的湿度。

    Variable-period undulators for synchrotron radiation
    10.
    发明授权
    Variable-period undulators for synchrotron radiation 失效
    用于同步辐射的可变周期波动器

    公开(公告)号：US06858998B1

    公开(公告)日：2005-02-22

    申请号：US10653064

    申请日：2003-09-03

    申请人： Gopal Shenoy ,  John Lewellen ,  Deming Shu ,  Nikolai Vinokurov

    发明人： Gopal Shenoy ,  John Lewellen ,  Deming Shu ,  Nikolai Vinokurov

    IPC分类号： H05H7/04 ,  H05H13/04

    CPC分类号： H05H13/04 ,  H05H7/04

    摘要： A new and improved undulator design is provided that enables a variable period length for the production of synchrotron radiation from both medium-energy and high-energy storage rings. The variable period length is achieved using a staggered array of pole pieces made up of high permeability material, permanent magnet material, or an electromagnetic structure. The pole pieces are separated by a variable width space. The sum of the variable width space and the pole width would therefore define the period of the undulator. Features and advantages of the invention include broad photon energy tunability, constant power operation and constant brilliance operation.

    摘要翻译： 提供了一种新的和改进的波动器设计，其实现了可变周期长度，用于生产来自中等能量和高能量存储环的同步加速器辐射。 可变周期长度使用由高磁导率材料，永磁体材料或电磁结构构成的极片的交错阵列来实现。 极片由可变的宽度空间分开。 因此，可变宽度空间和极宽度的总和将定义波动器的周期。 本发明的特征和优点包括宽光子能量可调性，恒定功率运行和恒定亮度操作。