Electron storage ring

Details Electron storage ring Electron storage ring

1989-06-26

1991-03-19

Wieder, Kenneth

328237, H05H 1302

Patent

active

050014374

ABSTRACT:
An electron storage ring has bending magnets, quadrupole magnets, and sextupole magnets arranged in a ring for constraining a beam of electrons along a path. When the beam is injected, a control means controls a power source for the magnet so that the beam has a high equilibrium emittance. This gives the beam a large dynamic aperture, simplifying beam injection. Once the beam has been injected, the field strengths of the magnets are varied to cause a reduction in the emittance to a low value, at which the beam is stored. Synchrotron radiation is generated which has a high brightness because the low emittance means the beam has a small diameter. During the reduction in equilibrium emittance, the betatron oscillation frequency is maintained on a stable operation region and the chromaticity is maintained substantially zero.

REFERENCES:
patent: 3303426 (1967-02-01), Beth
patent: 4849705 (1989-07-01), Takayama

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