公开(公告)号：US20190243013A1

公开(公告)日：2019-08-08

申请号：US16185893

申请日：2018-11-09

申请人： Oceaneering International, Inc.

发明人： Rajashekar Venkatachalam

IPC分类号： G01T7/00

CPC分类号： G01T7/005 ,  G01B15/02 ,  G01N23/04 ,  G01N23/18 ,  H05H11/00

摘要： Material loss may be estimated from 2D digital radiographs using double wall single imaging (DWSI) technique using a system for estimation of material loss from 2D digital radiographs comprising one or more calibration samples, each with one or more known defects; one or more radiofrequency emissions sources; one or more radiofrequency emissions detectors; one or more radiofrequency emissions processors operatively in communication with at least one radiofrequency emissions detector; and software which is used to process a background image representative of a background proximate a structure which is obtained and radiofrequency emissions emitted the structure at a predetermined location. The radiofrequency emissions detector detects radiofrequency emissions reflected from the structure and the radiofrequency emissions processor used to further process the radiofrequency emissions by creating a two-dimensional image of the detected radiofrequency emissions from which the background image is subtracted using median filtering.

公开(公告)号：US08035321B2

公开(公告)日：2011-10-11

申请号：US11957257

申请日：2007-12-14

申请人： Felix Chen ,  Christian Stoller ,  Olivier Philip ,  Luke T. Perkins

发明人： Felix Chen ,  Christian Stoller ,  Olivier Philip ,  Luke T. Perkins

IPC分类号： H05H11/00

CPC分类号： H05H11/00

摘要： An electron acceleration portion of a Betatron having a vacuum chamber with an interior wall spaced from an exterior wall with a main electron orbit located approximate to the exterior wall and the interior wall. An electron injector has an anode structured and arranged adjacent a wall selected from the group consisting of the interior wall and the exterior wall that is shaped so as to not impede the main electron orbit. There is at least one electron deflection plate disposed approximate an anode end of the anode and the main electron orbit. There can be two electron deflection plates spaced apart that form a gap of a width effective to receive emitted electrons from the electron injector. Such that, there is a voltage potential between the two electron deflection plates that is effective to deflect emitted electrons towards the main electron orbit.

摘要翻译： Betatron的电子加速部分具有真空室，其具有与外壁间隔开的内壁，主电子轨道位于外壁和内壁附近。 一个电子注入器具有一个阳极结构和邻近一个壁，该壁选自由内壁和外壁组成的组，其被成形为不阻碍主电子轨道。 至少有一个电子偏转板靠近阳极的阳极端和主电子轨道。 可以有两个间隔开的电子偏转板，形成有效地从电子注入器接收发射电子的宽度的间隙。 这样，两个电子偏转板之间存在有效地将发射的电子偏向主电子轨道的电压电位。

公开(公告)号：US07983393B2

公开(公告)日：2011-07-19

申请号：US12473839

申请日：2009-05-28

申请人： Joerg Bermuth ,  Georg Geus ,  Gregor Hess ,  Urs Viehboeck

发明人： Joerg Bermuth ,  Georg Geus ,  Gregor Hess ,  Urs Viehboeck

IPC分类号： H01J35/14 ,  H01J35/00 ,  H05H7/10

CPC分类号： H05H11/00

摘要： A betatron is provided for producing pulses of accelerated electrons, particularly in an x-ray testing device, comprising at least one main field coil, one expansion coil for transferring the accelerated electrons to a target, and one electronic control system of the expansion coil for applying an expansion pulse to the expansion coil. The electronic control system of the expansion coil is designed such that the time of the expansion pulse for adjusting the final energy of the electrons is variable relative to the main field.

摘要翻译： 提供了一种用于产生加速电子的脉冲的特写，特别是在x射线测试装置中，包括至少一个主场线圈，用于将加速电子传送到目标的一个扩展线圈，以及用于扩展线圈的一个电子控制系统 对膨胀线圈施加膨胀脉冲。 膨胀线圈的电子控制系统被设计成使得用于调节电子的最终能量的膨胀脉冲的时间相对于主场是可变的。

公开(公告)号：US07928672B2

公开(公告)日：2011-04-19

申请号：US11857908

申请日：2007-09-19

申请人： Vincent Ernst

发明人： Vincent Ernst

IPC分类号： H05H11/00

CPC分类号： H05H11/00 ,  H03K3/53 ,  H05H7/02

摘要： Described herein is a modulator circuit for generating discrete energy pulses in a device. The circuit includes a high voltage power source intermittently coupled to a saturable first inductor, a second inductor and a capacitor coupled in parallel between the high voltage power source and the saturable first inductor and second inductor. When the first inductor is unsaturated, its inductance is high and it isolates the capacitor from the second inductor. When the first inductor saturates, the inductance collapses and the capacitor discharges a high energy pulse into the second coil. By controlling the time to saturation, the timing of the pulses is controlled. The modulator circuit is effective to control pulses applied to a circular induction accelerator, such as a Betatron.

摘要翻译： 这里描述了一种用于在器件中产生离散能量脉冲的调制器电路。 该电路包括间歇地耦合到可饱和的第一电感器的高压电源，并联在高压电源和可饱和的第一电感器和第二电感器之间的第二电感器和电容器。 当第一个电感不饱和时，其电感很高，并且将电容器与第二个电感器隔离开来。 当第一个电感饱和时，电感塌陷，电容器将高能脉冲放电到第二个线圈中。 通过控制饱和时间，可以控制脉冲的定时。 调制器电路有效地控制施加到圆形感应加速器（例如Betatron）上的脉冲。

公开(公告)号：US20090174509A1

公开(公告)日：2009-07-09

申请号：US12351234

申请日：2009-01-09

申请人： William Bertozzi ,  Stephen E. Korbly ,  Robert J. Ledoux

发明人： William Bertozzi ,  Stephen E. Korbly ,  Robert J. Ledoux

IPC分类号： H01F7/00

CPC分类号： H05H11/00 ,  H01F7/202 ,  H05H13/04

摘要： A method is described wherein the acceleration of a beam of charged particles is achieved using the properties of conductors to limit the penetration of magnetic and electric fields in short times compared to natural time constants. This allows the use of induction electric fields with a Curl localized to a gap to accelerate particles while coupling the accelerated beam to a power supply. Two methods of coupling the particle beam to the power supply are disclosed as exemplary.

摘要翻译： 描述了一种方法，其中使用导体的特性来实现带电粒子束的加速度，以便在短时间内与自然时间常数相比限制磁场和电场的穿透。 这允许使用具有局部化到间隙的卷曲的感应电场来加速粒子，同时将加速束耦合到电源。 作为示例性公开了将粒子束耦合到电源的两种方法。

公开(公告)号：US20090153279A1

公开(公告)日：2009-06-18

申请号：US11957178

申请日：2007-12-14

申请人： Felix Chen

发明人： Felix Chen

IPC分类号： H05H11/00 ,  H01J35/00 ,  H01F7/06

CPC分类号： H05H11/00 ,  H05H11/04

摘要： A betatron includes a betatron magnet with a first guide magnet having a first pole face and a second guide magnet having a second pole face. Both the first and the second guide magnet have a centrally disposed aperture and the first pole face is separated from the second pole face by a guide magnet gap. A core is disposed within the centrally disposed apertures in an abutting relationship with both guide magnets. The core has at least one core gap. A drive coil is wound around both guide magnet pole faces. An orbit control coil has a contraction coil portion wound around the core gap and a bias control portion wound around the guide magnet pole faces. The contraction coil portion and the bias control portion are connected but in opposite polarity. Magnet fluxes in the core and guide magnets return through peripheral portions of the betatron magnet.

摘要翻译： 贝塔管包括具有带有第一极面的第一引导磁体和具有第二极面的第二引导磁体的贝塔通磁体。 第一和第二引导磁体都具有居中设置的孔，并且第一极面通过引导磁体间隙与第二极面分离。 芯部设置在与两个导向磁体邻接的中心设置的孔内。 核心至少有一个核心缺口。 驱动线圈缠绕在两个导向磁极面上。 轨道控制线圈具有缠绕在芯间隙上的收缩线圈部分和缠绕在导磁体磁极面上的偏置控制部分。 收缩线圈部分和偏压控制部分连接但具有相反的极性。 铁芯和导向磁体中的磁通量通过该铂电磁体的周边部分返回。

公开(公告)号：US07310409B2

公开(公告)日：2007-12-18

申请号：US11407332

申请日：2006-04-20

申请人： Hirofumi Tanaka

发明人： Hirofumi Tanaka

IPC分类号： H01J35/30

CPC分类号： H05H11/00 ,  H01J2235/08 ,  H05G2/00 ,  H05H6/00

摘要： A compact and low-cost electromagnetic wave generator in which X-rays having high intensity can be generated and the energy of generated X-rays can rapidly be switched. In an electromagnetic wave generator including a circular accelerator, a deflection electromagnet incorporated in the circular accelerator focuses injected and accelerated electrons. The circular accelerator produces stable closed electron orbits in respective regions with respective widths in the radial direction of the accelerator. The closed electron orbits are stable during injection and acceleration of electrons. A target is arranged across only some of the stable closed electron orbits so that a collision region, where a circulating electron beam collides with the target, and a non-collision region, where a circulating electron beam does not collide with the target, are produced. Through control of respective patterns of changes with time of the deflection magnetic field, a given electron closed orbit is shifted between the collision and the non-collision regions, thereby generating X-rays.

摘要翻译： 一种紧凑且低成本的电磁波发生器，其中可以产生具有高强度的X射线，并且可以快速切换所产生的X射线的能量。 在包括圆形加速器的电磁波发生器中，结合在圆形加速器中的偏转电磁体聚焦注入和加速的电子。 圆形加速器在各个区域中产生稳定的闭合电子轨道，其宽度相应于加速器的径向。 封闭的电子轨道在电子注入和加速期间是稳定的。 目标仅布置在一些稳定的闭合电子轨道上，使得循环电子束与靶碰撞的碰撞区域和循环电子束不与目标物碰撞的非碰撞区域被产生 。 通过对偏转磁场随时间的各种变化模式的控制，给定的电子闭合轨道在碰撞区域和非碰撞区域之间移动，从而产生X射线。

公开(公告)号：US4577156A

公开(公告)日：1986-03-18

申请号：US582420

申请日：1984-02-22

申请人： Donald W. Kerst

发明人： Donald W. Kerst

IPC分类号： H05H11/00 ,  H05H7/08

CPC分类号： H05H11/00

摘要： A push-pull betatron accelerator with two coaxial betatron tubes in which two electron beams are alternately accelerated in opposite directions of rotation. Both tubes are linked by the same alternating current accelerating flux produced by one or more accelerating flux coils. The betatron tubes are provided with guide fields having alternating current components which are in the same direction and having direct current biasing components which are in opposite directions. One electron beam is accelerated when the accelerating flux is changing between its negative maximum and its positive maximum, while the other beam is accelerated when the accelerating flux is changing between its positive maximum and its negative maximum. In another embodiment, there is only one betatron tube, in which two electron beams are alternately accelerated in opposite directions of rotation; and in still another embodiment, there are two tubes in which electrons are accelerated alternately, but the AC components for the guide fields are in opposite directions for the two tubes, while the DC biasing components are polarized the same for both tubes.

摘要翻译： 具有两个同轴电荷管的推挽式电位加速器，其中两个电子束在相反的旋转方向上交替加速。 两个管通过由一个或多个加速磁通线圈产生的相同的交流加速磁通链接。 该电子管设置有具有相同方向的交流分量并具有相反方向的直流偏置分量的引导场。 当加速磁通在其负最大值和正的最大值之间变化时，一个电子束被加速，另一个电子束在加速磁通在正极和负极之间变化时加速。 在另一个实施例中，只有一个贝塔管，其中两个电子束在相反的旋转方向上交替加速; 并且在另一个实施例中，存在两个电子交替地加速的电子管，但是用于引导场的AC分量对于两个管是相反的，而两个管的DC偏置分量是相同的。

公开(公告)号：US3377563A

公开(公告)日：1968-04-09

申请号：US37513264

申请日：1964-06-15

申请人： PIERRE J. GRATREAU

发明人： GRATREAU PIERRE J

IPC分类号： H05H11/00

CPC分类号： H05H11/00

公开(公告)号：US2925505A

公开(公告)日：1960-02-16

申请号：US72629958

申请日：1958-04-03

申请人： BENNETT WILLARD H

发明人： BENNETT WILLARD H

IPC分类号： H05H11/00

CPC分类号： H05H11/00