公开(公告)号：WO2005119732A3

公开(公告)日：2005-12-15

申请号：PCT/US2005/019794

申请日：2005-06-06

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing

Inventor： BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing

IPC: H01J3/12

Abstract: The charged-particle beam system includes a non-axisymmetric diode (2) that forms a non-axisymmetric beam (8) having an elliptic cross-section. A focusing element utilizes a magnetic field for focusing and transporting the non-axisymmetric beam (8), wherein the non-axisymmetric beam (8) is approximately matched with the channel of the focusing element.

公开(公告)号：WO2008130436A2

公开(公告)日：2008-10-30

申请号：PCT/US2007/081495

申请日：2007-10-16

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing

Inventor： BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing

CPC classification number: H01J23/02 ,  H01J23/08 ,  H01J23/083 ,  H01J23/087

Abstract: A charged-particle beam control system includes a plurality of external magnets that generate an axially-varying longitudinal magnetic (AVLM)/ axially-varying quadrupole magnetic (AVQM) field. A plurality of external electrode geometries generates an axially-varying longitudinal electrostatic (AVLE)/ axially-varying quadrupole electrostatic (AVQE) field. The external electrode geometries and magnets control and confine a charged-particle beam of elliptic cross-section.

Abstract translation: 带电粒子束控制系统包括产生轴向变化的纵向磁（AVLM）/轴向变化的四极磁（AVQM）场的多个外部磁体。 多个外部电极几何形状产生轴向变化的纵向静电（AVLE）/轴向变化的四极静电（AVQE）场。 外部电极的几何形状和磁铁控制和限制椭圆截面的带电粒子束。

公开(公告)号：WO2008061173A2

公开(公告)日：2008-05-22

申请号：PCT/US2007/084772

申请日：2007-11-15

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  CHEN, Chiping ,  BEMIS, Thomas, M. ,  BHATT, Ronak, J. ,  ZHOU, Jing

Inventor： CHEN, Chiping ,  BEMIS, Thomas, M. ,  BHATT, Ronak, J. ,  ZHOU, Jing

CPC classification number: G21K5/04 ,  H01J25/60 ,  H01J27/00 ,  H01J37/08 ,  H01J2237/061 ,  H01J2237/063 ,  H01J2237/31701 ,  H05H15/00

Abstract: A high-brightness, space-charge-dominated circular charged-p article beam system includes a flat circular emitter that emits charge particles to form a space-charge-dominated circular charged-particle beam. The space-charge-dominated circular charged-particle beam is emitted from the flat circular emitter with a uniform density and having a current emission being space-charge-limited, obeying the Child-Langmuir law. A diode includes at least one electrode at the flat circular emitter and at least one additional electrode that accelerates the charged particles. A beam tunnel is coupled electrically to at least one of the additional electrodes. An applied axisymmetric magnetic field focuses the space-charge-dominated circular charged-particle beam. A depressed collector collects the space-charge-dominated circular charged-particle beam.

Abstract translation: 高亮度，空间电荷主导的圆形带电物体束系统包括发射电荷粒子以形成空间电荷主导的圆形带电粒子束的平坦的圆形发射体。 空间电荷主导的圆形带电粒子束从平坦的圆形发射器以均匀的密度发射，并且具有受空间电荷限制的电流发射，符合Child-Langmuir定律。 二极管包括在平坦的圆形发射器处的至少一个电极和加速带电粒子的至少一个附加电极。 光束通道电耦合到附加电极中的至少一个。 应用轴对称磁场聚焦空间电荷主导的圆形带电粒子束。 凹陷式收集器收集以空间电荷为主的圆形带电粒子束。

公开(公告)号：WO2006124741A2

公开(公告)日：2006-11-23

申请号：PCT/US2006/018661

申请日：2006-05-15

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing ,  RADOVINSKY, Alexey

Inventor： BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing ,  RADOVINSKY, Alexey

IPC: H01J23/087

CPC classification number: H01F7/0278 ,  H01J23/087 ,  H01J23/0873 ,  H05H7/04

Abstract: A permanent magnet focusing system includes an electron gun that provides an electron ribbon beam having an elliptical shape. A plurality of permanent magnets provide transport for the electron ribbon beam. The permanent magnets produce a non- axisymmetric periodic permanent magnet (PPM) focusing field to allow the electron ribbon beam to be transported in the permanent magnet focusing system.

Abstract translation: 永磁体聚焦系统包括提供具有椭圆形状的电子束束的电子枪。 多个永久磁铁为电子束光束提供传输。 永磁体产生非轴对称周期永磁（PPM）聚焦场，以使电子束束能够在永磁体聚焦系统中传输。

公开(公告)号：EP1766652A2

公开(公告)日：2007-03-28

申请号：EP05758447.6

申请日：2005-06-06

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： BHATT, Ronak, J. ,  CHEN, Chiping ,  ZHOU, Jing

IPC: H01J37/00

CPC classification number: H01J27/02 ,  G21K1/093 ,  H01J3/02 ,  H01J3/12 ,  H01J3/20 ,  H01J29/64

Abstract: The charged-particle beam system includes a non-axisymmetric diode (2) that forms a non-axisymmetric beam (8) having an elliptic cross-section. A focusing element utilizes a magnetic field for focusing and transporting the non-axisymmetric beam (8), wherein the non-axisymmetric beam (8) is approximately matched with the channel of the focusing element.