公开(公告)号：US20040061456A1

公开(公告)日：2004-04-01

申请号：US10261831

申请日：2002-09-30

Inventor： David U. L. Yu ,  James E. Clendenin ,  Robert E. Kirby

IPC: H05H009/00

CPC classification number: H05H9/00

Abstract: A photoelectron linear accelerator for producing a low emittance polarized electron beam. The linear accelerator includes a tube having an inner wall, the inner tube wall being coated by a getter material. A portable, or demountable, cathode plug is mounted within said tube, the surface of said cathode having a semiconductor material formed thereon.

Abstract translation: 用于产生低发射偏振电子束的光电子线性加速器。 线性加速器包括具有内壁的管，内管壁由吸气剂材料涂覆。 便携式或可拆卸的阴极插头安装在所述管内，所述阴极的表面上形成有半导体材料。

公开(公告)号：US20020039005A1

公开(公告)日：2002-04-04

申请号：US09984410

申请日：2001-10-30

Applicant: FelTech Corporation

Inventor： Francesco Villa

IPC: H05H009/00

CPC classification number: H05H7/02

Abstract: A method for generating a closely spaced train of extremely high voltage short pulses. The method involves generating the train of pulses by combining a plurality of harmonic amplitudes to construct said pulses, via a Fourier construction. Any arbitrary pulse shape can be reproduced simply by changing the amplitude of the harmonics. The train of high voltage electrical pulses produced by the method of the present invention is particularly well suited for the acceleration of particles by applying the pulses to an appropriate accelerating structure, or the pulses can be used to drive an undulator/wiggler.

Abstract translation: 一种用于产生紧密排列的极高电压短脉冲串的方法。 该方法包括通过组合多个谐波幅度来产生脉冲序列以经由傅立叶构造构造所述脉冲。 可以通过改变谐波的振幅来简单地再现任意的脉冲形状。 通过本发明的方法产生的高压电脉冲串特别适用于通过将脉冲施加到适当的加速结构来加速颗粒，或者脉冲可用于驱动波动/摆动。

公开(公告)号：US20030146704A1

公开(公告)日：2003-08-07

申请号：US10072768

申请日：2002-02-07

Applicant: Siemens Medical Solutions USA, Inc.

Inventor： Xiaodong Ding ,  Chong Yao

IPC: H05H009/00

CPC classification number: H05H7/18

Abstract: A cavity for use in an accelerator is formed by an inner wall comprised of at least two different materials. According to embodiments of the present invention, a portion of the structure forming the inner wall of the cavity may be comprised of a first material (e.g., copper) while another portion forming the inner wall of the cavity may be comprised of a second material (e.g., steel). Using different materials for different portions of the inner walls forming a cavity may cause different Q-factors for the cavity while the shape of the cavity remains constant.

Abstract translation: 用于加速器的空腔由包括至少两种不同材料的内壁形成。 根据本发明的实施例，形成空腔内壁的结构的一部分可以由第一材料（例如铜）组成，而形成空腔内壁的另一部分可以由第二材料（ 例如钢）。 使用形成空腔的内壁的不同部分的不同材料可能导致腔的不同Q因子，而空腔的形状保持恒定。

公开(公告)号：US20030038254A1

公开(公告)日：2003-02-27

申请号：US10224779

申请日：2002-08-21

Inventor： Kourosh Saadatmand ,  William F. DiVergilio

IPC: H01J037/317 ,  H05H009/00

CPC classification number: H05H7/18 ,  H01J37/3171 ,  H01J2237/04737 ,  H01J2237/04924

Abstract: An ion buncher stage for a linear accelerator system is disclosed for bunching ions in an ion implantation system. The ion buncher stage may be employed upstream of one or more accelerating stages such that the loss of ions in the linear accelerator system is reduced. The invention further includes an asymmetrical double gap buncher stage, as well as a slit buncher stage for further improvement of ion implantation efficiency. Also disclosed are methods for accelerating ions in an ion implanter linear accelerator.

公开(公告)号：US20030030391A1

公开(公告)日：2003-02-13

申请号：US09929803

申请日：2001-08-13

Applicant: Siemens Medical Systems Inc.

Inventor： Samy M. Hanna ,  Kenneth Whitham

IPC: H05H009/00

CPC classification number: H05H7/18

Abstract: An improved method, system, and apparatus for tuning a particle accelerator is provided which includes tuning side cavities while placing adjancent cavities in a de-tuned condition. A conductor is positioned such that a primary cavity under test is minimally excited, while adjacent side cavities are excited. Coupled modes are measured. The primary cavity is tuned based on the measured coupled modes. According to the invention, this tuning is accomplished without use of access ports to the interior of the side cavities.

Abstract translation: 提供了一种用于调谐粒子加速器的改进的方法，系统和装置，其包括调谐侧腔，同时将辅助腔放置在解调状态。 导体被定位成使得被测试的主腔被最小程度地激发，而相邻的侧腔被激发。 测量耦合模式。 基于测量的耦合模式来调谐主腔。 根据本发明，该调谐是在不使用到侧腔内部的通路口的情况下完成的。