skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Micropole undulator

Abstract

Micropole undulators for use in the generation of x-rays from moving charged particles and methods for manufacturing such undulators are disclosed. One type of micropole undulator has two jaws containing rows of spaced apart poles arranged so that each pole produces a magnetic field aligned with all other similar fields. An external biasing field extends through the jaws so that an overall undulator field of substantially sinusoidal shape and substantially zero average value extends along the undulator axis. Preferably, the poles are bars formed of a magnetizable, but unmagnetized, material so that, after the jaws are assembled, all of the bars can be magnetized simultaneously in a uniform magnetic field of suitable strength. Another type of micropole undulator incorporates two parallel layers which have been magnetized to provide rows of alternating magnetic fields extending in opposite directions, the layers being positioned between the pole faces of a highly magnetically permeable material with the south poles of one layer opposite the north poles of the other. Poles in the layers are formed by subjecting successive regions of each layer to oppositely directed and suitably varied magnetizing forces.

Inventors:
 [1];  [2]
  1. (Eugene, OR)
  2. (Palo Alto, CA)
Issue Date:
Research Org.:
Stanford Univ., CA (United States); University of Oregon
Sponsoring Org.:
USDOE
OSTI Identifier:
866831
Patent Number(s):
4800353
Assignee:
State of Oregon Acting by and through State Board of Higher (Eugene, OR) OAK
DOE Contract Number:  
FG06-85ER13309; AC03-82ER13000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
micropole; undulator; undulators; generation; x-rays; moving; charged; particles; methods; manufacturing; disclosed; type; jaws; containing; rows; spaced; apart; poles; arranged; pole; produces; magnetic; field; aligned; similar; fields; external; biasing; extends; overall; substantially; sinusoidal; shape; zero; average; value; axis; preferably; bars; formed; magnetizable; unmagnetized; material; assembled; magnetized; simultaneously; uniform; suitable; strength; incorporates; parallel; layers; provide; alternating; extending; opposite; directions; positioned; highly; magnetically; permeable; south; layer; north; subjecting; successive; regions; oppositely; directed; suitably; varied; magnetizing; forces; oppositely directed; permeable material; uniform magnetic; magnetically permeable; opposite direction; opposite directions; charged particles; magnetic field; magnetic fields; spaced apart; charged particle; alternating magnetic; moving charged; substantially zero; micropole undulator; similar fields; south poles; micropole undulators; field aligned; similar field; pole produces; apart poles; /335/

Citation Formats

Csonka, Paul L., and Tatchyn, Roman O. Micropole undulator. United States: N. p., 1989. Web.
Csonka, Paul L., & Tatchyn, Roman O. Micropole undulator. United States.
Csonka, Paul L., and Tatchyn, Roman O. Tue . "Micropole undulator". United States. https://www.osti.gov/servlets/purl/866831.
@article{osti_866831,
title = {Micropole undulator},
author = {Csonka, Paul L. and Tatchyn, Roman O.},
abstractNote = {Micropole undulators for use in the generation of x-rays from moving charged particles and methods for manufacturing such undulators are disclosed. One type of micropole undulator has two jaws containing rows of spaced apart poles arranged so that each pole produces a magnetic field aligned with all other similar fields. An external biasing field extends through the jaws so that an overall undulator field of substantially sinusoidal shape and substantially zero average value extends along the undulator axis. Preferably, the poles are bars formed of a magnetizable, but unmagnetized, material so that, after the jaws are assembled, all of the bars can be magnetized simultaneously in a uniform magnetic field of suitable strength. Another type of micropole undulator incorporates two parallel layers which have been magnetized to provide rows of alternating magnetic fields extending in opposite directions, the layers being positioned between the pole faces of a highly magnetically permeable material with the south poles of one layer opposite the north poles of the other. Poles in the layers are formed by subjecting successive regions of each layer to oppositely directed and suitably varied magnetizing forces.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

Save / Share: