Laboratori Nazionali di Frascati
News from LNF
Adolfo Esposito
On Sunday, September 28, at 10:40 p.m. the first electron beam was injected into the electron ring of the DAFNE collider. During a 10-day shift starting on
September 18, the electron beam was extracted for the first time from the
Accumulator. After reaching 100% efficiency extraction and stable operation in the
damping ring, the beam was driven through the Transfer Line up to the pulsed
magnets which allow the passage of the beam in both directions through the same
vacuum vessel. Commissioning of these special magnets was completed rapidly
and successfully. The beam was then transported along the ~70 m long channel
up to a fluorescent screen target right at the entrance of the electron ring.
After extracting the target, the beam was detected by means of beam position
monitors along the first quadrant of the ring.
 Figure 1 shows the beam signal on a "button" beam position monitor inside DAFNE electron ring (from DAFNE logbook).
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 Figure 2 shows the DAFNE staff on shift during the first injection into the Main Rings celebrating event. |
On Saturday, October 4, some tens of revolutions of the first electron beam in the ring were observed.
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Figure 2 shows the DAFNE staff on shift during the first injection into the Main Rings celebrating event.