Micropole undulator
- Eugene, OR
- Palo Alto, CA
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.
- Research Organization:
- Stanford Univ., CA (United States); Univ. of Oregon, Eugene, OR (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG06-85ER13309; AC03-82ER13000
- Assignee:
- State of Oregon Acting by and through State Board of Higher (Eugene, OR)
- Patent Number(s):
- US 4800353
- OSTI ID:
- 866831
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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
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