公开(公告)号：US3868522A

公开(公告)日：1975-02-25

申请号：US41903473

申请日：1973-11-26

Applicant: CA ATOMIC ENERGY LTD

Inventor： BIGHAM CLIFFORD B ,  SCHNEIDER HARVEY R

IPC: H05H13/00

CPC classification number: H05H13/00 ,  Y10S505/879

Abstract: Isochronous cyclotron using an air core superconducting magnet to provide high intensity magnetic fields. To provide an axial focussing field, iron sectors with spiral edges acting as flutter poles positioned in the magnetic field such that saturation of the iron in the sectors gives an increased field between the sectors and a slightly decreased field outside.

Abstract translation: 同步回旋加速器使用空心超导磁体提供高强度磁场。 为了提供轴向聚焦场，具有螺旋边缘的铁扇区用作定位在磁场中的颤振极，使得扇区中的铁的饱和度在扇区之间产生增加的场，并且外​​部稍微减小的场。

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。