First Observation of Simultaneous Alpha Buckets in a Quasi-Isochronous Storage Ring
We present the first experimental evidence confirming the theoretical predictions of alpha buckets in an electron storage ring. By controlling both the first- and second-order momentum compaction factors, we succeeded in storing electrons simultaneously in a pair of alpha buckets or in either bucket alone. The two electron bunches are separated in energy by slightly less than 1% and the energy is tunable over a narrow range. The energy difference was directly measured using synchrotron light from an undulator. Simultaneous two-color light beams from an undulator were generated. By changing the rf voltage, we were able to vary the normally fixed longitudinal bunch separation. (c) 2000 The American Physical Society.
- OSTI ID:
- 20216805
- Journal Information:
- Physical Review Letters, Vol. 84, Issue 24; Other Information: PBD: 12 Jun 2000; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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