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Title: Compton backscattered collimated x-ray source

Abstract

A high-intensity, inexpensive and collimated x-ray source for applications such as x-ray lithography is disclosed. An intense pulse from a high power laser, stored in a high-finesse resonator, repetitively collides nearly head-on with and Compton backscatters off a bunched electron beam, having relatively low energy and circulating in a compact storage ring. Both the laser and the electron beams are tightly focused and matched at the interaction region inside the optical resonator. The laser-electron interaction not only gives rise to x-rays at the desired wavelength, but also cools and stabilizes the electrons against intrabeam scattering and Coulomb repulsion with each other in the storage ring. This cooling provides a compact, intense bunch of electrons suitable for many applications. In particular, a sufficient amount of x-rays can be generated by this device to make it an excellent and flexible Compton backscattered x-ray (CBX) source for high throughput x-ray lithography and many other applications.

Inventors:
 [1];  [2]
  1. Woodside, CA
  2. Stanford, CA
Issue Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
OSTI Identifier:
871925
Patent Number(s):
5825847
Assignee:
Board of Trustees of Leland Stanford Junior University (Palo Alto, CA)
Patent Classifications (CPCs):
G - PHYSICS G03 - PHOTOGRAPHY G03F - PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05G - X-RAY TECHNIQUE
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
compton; backscattered; collimated; x-ray; source; high-intensity; inexpensive; applications; lithography; disclosed; intense; pulse; power; laser; stored; high-finesse; resonator; repetitively; collides; nearly; head-on; backscatters; bunched; electron; beam; relatively; energy; circulating; compact; storage; beams; tightly; focused; matched; interaction; region; inside; optical; laser-electron; rise; x-rays; desired; wavelength; cools; stabilizes; electrons; intrabeam; scattering; coulomb; repulsion; cooling; provides; bunch; suitable; particular; sufficient; amount; generated; device; excellent; flexible; cbx; throughput; compton backscattered; desired wavelength; x-ray lithography; sufficient amount; x-ray source; electron beam; electron beams; power laser; region inside; bunched electron; collimated x-ray; scattered x-ray; coulomb repulsion; interaction region; high-finesse resonator; intense pulse; desired wave; /378/

Citation Formats

Ruth, Ronald D, and Huang, Zhirong. Compton backscattered collimated x-ray source. United States: N. p., 1998. Web.
Ruth, Ronald D, & Huang, Zhirong. Compton backscattered collimated x-ray source. United States.
Ruth, Ronald D, and Huang, Zhirong. Thu . "Compton backscattered collimated x-ray source". United States. https://www.osti.gov/servlets/purl/871925.
@article{osti_871925,
title = {Compton backscattered collimated x-ray source},
author = {Ruth, Ronald D and Huang, Zhirong},
abstractNote = {A high-intensity, inexpensive and collimated x-ray source for applications such as x-ray lithography is disclosed. An intense pulse from a high power laser, stored in a high-finesse resonator, repetitively collides nearly head-on with and Compton backscatters off a bunched electron beam, having relatively low energy and circulating in a compact storage ring. Both the laser and the electron beams are tightly focused and matched at the interaction region inside the optical resonator. The laser-electron interaction not only gives rise to x-rays at the desired wavelength, but also cools and stabilizes the electrons against intrabeam scattering and Coulomb repulsion with each other in the storage ring. This cooling provides a compact, intense bunch of electrons suitable for many applications. In particular, a sufficient amount of x-rays can be generated by this device to make it an excellent and flexible Compton backscattered x-ray (CBX) source for high throughput x-ray lithography and many other applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}

Works referenced in this record:

Tunable, short pulse hard x‐rays from a compact laser synchrotron source
journal, December 1992


New x‐ray source for lithography
journal, December 1989


Laser Cooling of Electron Beams for Linear Colliders
journal, June 1997


Development of a compact high brightness X-ray source
journal, March 1994

  • Chen, J.; Imasaki, K.; Fujita, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 341, Issue 1-3
  • https://doi.org/10.1016/0168-9002(94)90379-4

Emerging terawatt picosecond CO/sub 2/ laser technology and possible applications in accelerator physics
conference, January 1998