公开(公告)号：US11715617B2

公开(公告)日：2023-08-01

申请号：US17407748

申请日：2021-08-20

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： William Graves ,  Mark Holl

IPC: H01J35/14 ,  H05G1/02 ,  H05G1/28 ,  H05G1/52 ,  H04N5/32

CPC classification number: H01J35/153 ,  H05G1/02 ,  H05G1/28 ,  H05G1/52 ,  H01J2235/08 ,  H04N5/32

Abstract: Some embodiments of the present disclosure provide a method that includes colliding a laser with an electron beam to produce backscattered x-rays while the electron beam is traversing a circular arc. This backscattering process is inverse Compton scattering (ICS). ICS x-rays are emitted in the same direction as the electrons. Because this ICS direction is changing as a function of time, the position of the x-ray beam on a detector will change depending on the timing of electron/laser collision. This position change is easily detected and converted to a timing measurement sensitive at the femtosecond scale, converting a very difficult timing measurement of laser pulse, electron pulse, and x-ray pulse synchronization into a simple and robust position measurement.

公开(公告)号：US20210384001A1

公开(公告)日：2021-12-09

申请号：US17407748

申请日：2021-08-20

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： William Graves ,  Mark Holl

IPC: H01J35/14 ,  H05G1/28 ,  H05G1/52 ,  H05G1/02

Abstract: Some embodiments of the present disclosure provide a method that includes colliding a laser with an electron beam to produce backscattered x-rays while the electron beam is traversing a circular arc. This backscattering process is inverse Compton scattering (ICS). ICS x-rays are emitted in the same direction as the electrons. Because this ICS direction is changing as a function of time, the position of the x-ray beam on a detector will change depending on the timing of electron/laser collision. This position change is easily detected and converted to a timing measurement sensitive at the femtosecond scale, converting a very difficult timing measurement of laser pulse, electron pulse, and x-ray pulse synchronization into a simple and robust position measurement.