公开(公告)号：US4935194A

公开(公告)日：1990-06-19

申请号：US339549

申请日：1989-04-17

Applicant: Gerard Verschoore

Inventor： Gerard Verschoore

IPC: G21K5/02 ,  G21K5/08 ,  H05H3/06 ,  H05H6/00

CPC classification number: H05H6/00 ,  H05H3/06

Abstract: A neutron generator comprising a target (16) which is struck by a hydrogen isotope ion beam and which is formed by a structure comprising a thin absorbing active layer (19) deposited on a carrier layer (18). In accordance with the invention, on the two above layers there is deposited a stack of active layers (21, 23, 25, 27) which are identical to the layer (19) and which are separated from one another by diffusion barriers (20, 22, 24, 26, respectively). The thickness of each of said active layers is in the order of the penetration depth of the deuterium ions striking the target.

Abstract translation: 一种中子发生器，包括被氢同位素离子束撞击并由沉积在载体层（18）上的薄吸收有源层（19）的结构形成的靶（16）。 根据本发明，在上述两层上淀积一层与层（19）相同的有源层（21,23,25,27），它们通过扩散阻挡层（20， 22,24,26）。 每个所述有源层的厚度是氘离子撞击靶的穿透深度的顺序。

公开(公告)号：US4830813A

公开(公告)日：1989-05-16

申请号：US41987

申请日：1987-04-24

Applicant: William E. Dance

Inventor： William E. Dance

IPC: G21K5/04 ,  H05H3/06

CPC classification number: G21K5/04 ,  H05H3/06

Abstract: A lightweight, low energy neutron radiography inspection device (20) includes an inspection head (22) with a sealed tube neutron generator (44) using a deuterium target (110) for emitting relatively low energy neutrons. A moderating fluid (140) within the head is used to thermalize the neutrons emitted from the neutron source. A collimator (40) directs the thermalized neutrons to produce a thermal neutron radiograph. The relatively low energy neutrons produced by the neutron generator permit the reduction in volume of moderating fluid required and thus the use of a smaller, more maneuverable, inspection head.

Abstract translation: 轻量级的低能中子射线照相检查装置（20）包括使用氘靶（110）发射较低能量中子的具有密封管中子发生器（44）的检查头（22）。 头部内的调节流体（140）用于对从中子源发射的中子进行热化。 准直器（40）引导热中子产生热中子射线照相。 中子发生器产生的相对低能量的中子允许减少所需的调节流体的体积，并因此使用更小，更可操作的检查头。

公开(公告)号：US4210813A

公开(公告)日：1980-07-01

申请号：US961378

申请日：1978-11-16

Applicant: Vladimir F. Romanovsky ,  Vadim S. Panasjuk ,  Boris M. Stepanov ,  Alexandr M. Ovcharov ,  Jury A. Akimov

Inventor： Vladimir F. Romanovsky ,  Vadim S. Panasjuk ,  Boris M. Stepanov ,  Alexandr M. Ovcharov ,  Jury A. Akimov

IPC: H01J35/00 ,  G21G4/00 ,  G21K1/00 ,  H01J33/00 ,  H01J35/02 ,  H01J35/06 ,  H05G1/10 ,  H05G2/00 ,  H05H3/06 ,  H05H5/00

CPC classification number: H01J35/06 ,  H01J35/025 ,  H05G1/10 ,  H05H3/06

Abstract: The proposed ionizing radiation generator comprises an ionizing radiation emitter including a resonance transformer whose field winding is arranged near the low-voltage end of the step-up winding, electrically associated with the electrically conducting housing of the resonance transformer. The emitter also includes an accelerating tube whose high-voltage electrode is coupled to the high-voltage end of the step-up winding of the resonance transformer and attached to one of the ends of the tubular insulator of the accelerating tube which accommodates the step-up winding. The low-voltage electrode of the accelerating tube is electrically associated with the housing, while a source of charged particles is arranged in the evacuated inner space of the accelerating tube disposed between the housing and the tubular insulator, one of the electrodes of the tube being electrically associated with the charged particle source.

Abstract translation: 所提出的电离辐射发生器包括电离辐射发射器，其包括谐振变压器，其场绕组布置在升压绕组的低压端附近，与谐振变压器的导电壳体电连接。 发射极还包括加速管，其加压管的高压电极耦合到谐振变压器的升压绕组的高压端，并连接到加速管的管状绝缘体的一端， 上卷。 加速管的低压电极与壳体电连接，而带电粒子源布置在设置在壳体和管状绝缘体之间的加速管的抽空的内部空间中，管的一个电极为 与带电粒子源电连接。

公开(公告)号：US4092545A

公开(公告)日：1978-05-30

申请号：US721616

申请日：1976-09-08

Applicant: Obie M. Langford ,  Harold E. Peelman

Inventor： Obie M. Langford ,  Harold E. Peelman

IPC: G01V5/04 ,  G01V5/00 ,  H01J1/13 ,  H02M3/338 ,  H05H3/06 ,  H05H5/02 ,  G21G4/02

CPC classification number: H01J1/135 ,  H02M3/3384 ,  H05H3/06

Abstract: Means and method for energizing and regulating a neutron generator tube having a target, an ion source and a replenisher includes providing a negative high voltage to the target and monitoring the target current. A constant current from a constant current source is divided into a shunt current and a replenisher current in accordance with the target current. The replenisher current is applied to the replenisher in a neutron generator tube so as to control the neutron output in accordance with the target current.

Abstract translation: 用于激励和调节具有靶，离子源和补充器的中子发生器管的装置和方法包括向目标提供负高电压并监测目标电流。 来自恒定电流源的恒定电流根据目标电流被分成分流电流和补充电流。 补充液电流被施加到中子发生器管中的补充器，以便根据目标电流控制中子输出。

公开(公告)号：US3925676A

公开(公告)日：1975-12-09

申请号：US49341574

申请日：1974-07-31

Applicant: CA ATOMIC ENERGY LTD

Inventor： BIGHAM CLIFFORD B ,  SCHNEIDER HARVEY R

IPC: A61N5/10 ,  H05H3/06 ,  H05H13/00 ,  G21G4/02

CPC classification number: H05H3/06 ,  A61N5/10 ,  A61N2005/109 ,  H05H13/00

Abstract: A neutron source for medical therapy purposes comprising a cyclotron comprising an iron metal housing acting as a magnetic yoke, magnetic shield, radiation shield, and vacuum vessel, a pair of superconducting coils mounted in a cavity in the housing said coils being cooled to superconducting temperatures by passage of a refrigerant fluid therethrough and connected to an electrical energy source such that a high current flows in the coils producing an intense magnetic field inwardly between the coils, an ion orbiting region defined by pairs of sectoral-shaped RF electrode structures energized at an RF frequency and focussing flutter poles mounted in the intense magnetic field between coils, a source of ions positioned centrally of the ion orbiting region to provide a stream of ions that will be orbited in the orbit region; an ion target positioned internally of said iron housing at an outer position in the orbit region such that orbiting ions strike the target and produce neutrons; a channel formed in the iron housing from the target to the exterior for passage of the beam of neutrons formed at the target, said channel acting as a beam collimator; and a mounting structure for movably mounting the cyclotron and target such that the neutron beam produced can be employed at more than one position.

Abstract translation: 一种用于医疗治疗目的的中子源，其包括回旋加速器，该回旋加速器包括用作磁轭的铁金属壳，磁屏蔽，辐射屏蔽和真空容器，一对安装在壳体中的空腔中的超导线圈，所述线圈被冷却至超导温度 通过制冷剂流体通过其并连接到电能源，使得高电流在线圈中流动，从而在线圈之间产生强烈的磁场，由在一个或多个线圈处通电的扇形RF电极结构对形成的离子轨道区域 RF频率和聚焦颤振极安装在线圈之间的强磁场中，离子源位于离子轨道区域的中心，以提供将在轨道区域中轨道运动的离子流; 位于所述铁壳体内部的离子靶位于所述轨道区域中的外部位置，使得轨道离子撞击所述靶并产生中子; 形成在所述铁壳体中的从目标到外部的通道，用于通过形成在目标处的中子束，所述通道用作射束准直器; 以及用于可移动地安装回旋加速器和靶材的安装结构，使得所产生的中子束可以在多于一个位置上使用。

公开(公告)号：US3746859A

公开(公告)日：1973-07-17

申请号：US3746859D

申请日：1970-04-22

Applicant: ATOMIC ENERGY COMMISSION

Inventor： HILTON J ,  HAMILTON G

IPC: H01J27/14 ,  H05H3/06 ,  H05H6/00 ,  G21G3/04

CPC classification number: H05H6/00 ,  H01J27/14 ,  H05H3/06

Abstract: Disclosed is a neutron generator in which a gas (such as a heavy isotope of hydrogen) or a mixture of gases, is ionized by any convenient means such as exposure to a magnetically stabilized arc. The ions are directed to an accelerator and the resulting high velocity ion stream is caused to impinge on a target. The interaction of the ion beam with the target material soon builds up a high density of gas in the target surface which, in turn, interacts with the incoming beam to produce an intense isotropic neutron output from the fusion of the isotopes.

Abstract translation: 公开了一种中子发生器，其中气体（例如氢的重重同位素）或气体的混合物通过任何方便的手段例如暴露于磁稳定的电弧而离子化。 离子被引导到加速器，并且使得到的高速离子流撞击到目标物上。 离子束与目标材料的相互作用很快就会在目标表面产生高密度的气体，这又与入射光束相互作用，从同位素的融合产生强烈的各向同性中子输出。

公开(公告)号：US3664960A

公开(公告)日：1972-05-23

申请号：US3664960D

申请日：1969-01-24

Applicant: NAT RES DEV

Inventor： WOOD JAMES DAVID LONDON HEDLEY

IPC: H01J27/02 ,  H05H3/06 ,  H05H5/00

CPC classification number: H01J27/022 ,  H05H3/06 ,  H05H5/00

Abstract: In the supply circuit for an ion accelerator having an ion source and an ion extractor electrode, the supply circuit including an energizing supply for the ion source and a power supply for the extractor electrode, there is provided a negative feedback loop connected to cause the extractor electrode current to control the energizing supply output in a sense to maintain constant the extractor current. The described embodiment is a neutron generator tube having a plasma ion source energized by a radio-frequency supply.

公开(公告)号：US3614440A

公开(公告)日：1971-10-19

申请号：US3614440D

申请日：1968-06-24

Applicant: KAMAN SCIENCES CORP ,  ELISABETH HELEN CARR

Inventor： CARR BARNEY J

IPC: F03H1/00 ,  H01J27/02 ,  H01J27/06 ,  H01J41/00 ,  H01J41/06 ,  H01J41/18 ,  H05H3/06 ,  G21G3/04

CPC classification number: F03H1/00 ,  H01J27/02 ,  H01J27/06 ,  H01J41/00 ,  H01J41/06 ,  H01J41/18 ,  H05H3/06

Abstract: Apparatus for ionizing gases at very low pressures comprising inner and outer electrodes wherein the inner electrode is substantially circular in cross section and the outer electrode surrounding the inner electrode may be other than a figure of revolution or may be eccentrically positioned with respect to the inner electrode which inner electrode is less in length than two times the length of the surrounding outer electrode and is spaced therefrom a distance which is greater than the diameter of the inner electrode for a distance of not less than two-thirds the length of the surrounding outer electrode.

公开(公告)号：US3444377A

公开(公告)日：1969-05-13

申请号：US3444377D

申请日：1965-08-12

Applicant: INST PLASMAPHYSIK GMBH

Inventor： HORA HEINRICH ,  KRONAST BENEDIKT

IPC: H05H1/22 ,  H05H3/06 ,  G21G3/00

CPC classification number: G21B1/23 ,  H05H3/06

公开(公告)号：US3405275A

公开(公告)日：1968-10-08

申请号：US42320065

申请日：1965-01-04

Applicant: DRESSER IND

Inventor： BERGAN REUBEN A

IPC: G01V5/10 ,  H05H3/06

CPC classification number: G01V5/10 ,  G01V5/102 ,  H05H3/06