公开(公告)号：US09697924B2

公开(公告)日：2017-07-04

申请号：US14674482

申请日：2015-03-31

Applicant: Massachusetts Institute of Technology

Inventor： Emilio Alessandro Nanni ,  William Sproull Graves ,  Franz Xaver Kaertner ,  David Eugene Moncton

IPC: G21K5/00 ,  G21K1/06 ,  H01J23/18 ,  H05G2/00

CPC classification number: G21K5/00 ,  G21K1/06 ,  H01J23/18 ,  H05G2/00

Abstract: Coherent electronic current is generated by generating and transmitting an electron bunch along a longitudinal axis. The electron bunch is then directed onto a target, wherein the target imparts a transverse spatial modulation to the electron bunch via diffraction contrast or phase contrast. The transverse spatial modulation of the electron bunch is then transferred to the longitudinal axis via an emittance exchange beamline, creating a periodically modulated distribution of coherent electronic current.

公开(公告)号：US20160307659A1

公开(公告)日：2016-10-20

申请号：US14674482

申请日：2015-03-31

Applicant: Massachusetts Institute of Technology

Inventor： Emilio Alessandro Nanni ,  William Sproull Graves ,  Franz Xaver Kaertner ,  David Eugene Moncton

IPC: G21K5/00

CPC classification number: G21K5/00 ,  G21K1/06 ,  H01J23/18 ,  H05G2/00

Abstract: Coherent electronic current is generated by generating and transmitting an electron bunch along a longitudinal axis. The electron bunch is then directed onto a target, wherein the target imparts a transverse spatial modulation to the electron bunch via diffraction contrast or phase contrast. The transverse spatial modulation of the electron bunch is then transferred to the longitudinal axis via an emittance exchange beamline, creating a periodically modulated distribution of coherent electronic current.

Abstract translation: 通过沿纵轴产生和传输电子束来产生相干电子电流。 然后将电子束引导到目标上，其中目标通过衍射对比度或相位对比度向电子束施加横向空间调制。 然后电子束的横向空间调制通过发射率交换束线转移到纵轴，产生相干电子电流的周期性调制分布。

公开(公告)号：US20150285749A1

公开(公告)日：2015-10-08

申请号：US14678567

申请日：2015-04-03

Applicant: Massachusetts Institute of Technology

Inventor： David Eugene Moncton ,  William Sproull Graves ,  Franz Xaver Kaertner ,  Hua Lin ,  Emilio Alessandro Nanni ,  Luis E. Zapata ,  Boris Khaykovich

IPC: G01N23/201 ,  H05G2/00

CPC classification number: G01N23/201 ,  H05G2/00

Abstract: The structure of materials can be characterized (e.g., via CD-SAXS) by generating a burst of electron bunches in a pulse train and accelerating the electron bunches to relativistic energies. Meanwhile, an optical cavity is filled with a laser pulse; and the electron bunches collide with the laser pulse in the optical cavity, permitting a single laser pulse to interact with the electron bunch train to generate x-rays via inverse Compton scattering. The generated x-rays are then directed to a sample, and the sample is imaged by measuring the scattering of the x-rays from the sample.

Abstract translation: 材料的结构可以通过在脉冲串中产生电子束的脉冲串并将电子束加速到相对论能量来表征（例如通过CD-SAXS）。 同时，用激光脉冲填充光腔; 并且电子束与光学腔中的激光脉冲碰撞，允许单个激光脉冲与电子束串相互作用以通过反康普顿散射产生X射线。 然后将生成的X射线引导到样品，并且通过测量来自样品的X射线的散射来对样品成像。