公开(公告)号：US06332017B1

公开(公告)日：2001-12-18

申请号：US09488898

申请日：2000-01-21

申请人： Frank E. Carroll ,  Robert H. Traeger ,  Marcus H. Mendenhall ,  James W. Waters ,  Glenn Edwards ,  Charles A. Brau

发明人： Frank E. Carroll ,  Robert H. Traeger ,  Marcus H. Mendenhall ,  James W. Waters ,  Glenn Edwards ,  Charles A. Brau

IPC分类号： H01J3514

CPC分类号： H05G2/00

摘要： A system for generating tunable pulsed monochromatic X-rays comprises a tabletop terawatt laser delivering 10 Joules of energy in 10 ps at a wavelength of 1.1 microns. The light beam from the laser is counter-propagated against an electron beam produced by a linear accelerator. X-ray photons are generated by inverse Compton scattering that occurs as a consequence of the “collision” that occurs between the electron beam and IR photons generated by the laser. The system uses a novel pulse structure comprising, in a preferred embodiment, a single micropulse. The LINAC is configured to generate an electron beam having 1 nanocoulomb of charge in a microbunch having a pulse length of about 5 picoseconds or less (or an electron beam brightness of 1012 A/m2−radian2@ 500 A). A beam alignment sub-system is used at the laser beam—electron beam interaction zone and directs the X-ray beam, in a preferred embodiment, through a beryllium window and onto mosaic crystals which divert the beam into a beam transport system toward the imaging target.

摘要翻译： 用于产生可调谐脉冲单色X射线的系统包括在波长为1.1微米的10ps中提供10焦耳的能量的桌面式terawatt激光器。 来自激光器的光束相对于由线性加速器产生的电子束相反传播。 X射线光子是通过由激光产生的电子束和IR光子之间发生的“碰撞”而产生的反康普顿散射产生的。该系统使用一种新颖的脉冲结构，在一个优选的实施方式中，单个 微脉冲 LINAC配置为产生具有脉冲长度为约5皮秒或更小（或电子束亮度为1012A / m2-radian2 @ 500A）的微型束中具有1纳电库仑电荷的电子束。 在激光束 - 电子束相互作用区域使用光束对准子系统，并且在优选实施例中引导X射线束通过铍窗和引导束到束成像的束传输系统的马赛克晶体 目标。

公开(公告)号：US06687333B2

公开(公告)日：2004-02-03

申请号：US09964872

申请日：2001-09-28

申请人： Frank E. Carroll ,  Robert H. Traeger ,  Marcus H. Mendenhall ,  James W. Waters ,  Glenn Edwards ,  Charles A. Brau

发明人： Frank E. Carroll ,  Robert H. Traeger ,  Marcus H. Mendenhall ,  James W. Waters ,  Glenn Edwards ,  Charles A. Brau

IPC分类号： G21G400

CPC分类号： H05G2/00

摘要： A system for generating tunable pulsed monochromatic X-rays includes a tabletop laser emitting a light beam that is counter-propagated against an electron beam produced by a linear accelerator. X-ray photon pulses are generated by inverse Compton scattering that occurs as a consequence of the “collision” that occurs between the electron beam and IR photons generated by the laser. The system uses a novel pulse structure comprising, for example, a single micropulse. In this way, pulses of very short X-rays are generated that are controllable on an individual basis with respect to their frequency, energy level, “direction,” and duration.

摘要翻译： 用于产生可调谐脉冲单色X射线的系统包括发射相对于由线性加速器产生的电子束相反传播的光束的桌面激光器。 X射线光子脉冲是通过由激光产生的电子束和IR光子之间发生的“碰撞”而产生的反康普顿散射产生的。 该系统使用包括例如单个微脉冲的新型脉冲结构。 以这种方式，产生非常短的X射线的脉冲，其相对于它们的频率，能级，“方向”和持续时间在个体基础上是可控的。