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ALS020

English Caption: 
The electron storage ring inside its concrete tunnel at the Advanced Light Source at E.O. Lawrence Berkeley National Laboratory. Electrons from the booster synchrotron are further accelerated to an energy of 1.9 billion electron volts (GeV), at which energy they coast through the storage ring for several hours as the beam gradually decays and needs to be replenished by means of several hundred injections of electron pulses from the booster synchrotron spaced over about 5 minutes. The same type of magnets (blue dipole, orange quadrupole, and syellowextupole) as in the booster synchrotron guide and focus the beam in the ring. Synchrotron light is emitted into beamlines through the round beam ports of the type visible at the center right. (Courtesy: Advanced Light Source)
German Caption: 
Der Elektronenspeicherring in seinem Betontunnel an der Advanced Light Source am E.O. Lawrence Berkeley National Laboratory. Elektronen aus dem Booster Synchrotron werden auf Energien von 1,9 Milliarden Elektronenvolt (GeV) weiter beschleunigt. Mit dieser
Italian Caption: 
L’anello di accumulazione all’interno del proprio tunnel in cemento all’Advanced Light Source, Lawrence Berkeley Laboratory. Gli elettroni provenienti dal sincrotrone booster vengono uleriormente accelerati fino ad un’energia di 1.9 miLiardi di elettron volt (GeV). A questa energia essi viaggiano attraverso l’anello di accumulazione per diverse ore, mentre il fascio decade gradualmente, e necessita di nuova energia fornita mediante vsvariate centinaia di iniezioni di pacchetti di elettroni, dal booster, a distanza di circa 5 minuti. Lo stesso tipo di magneti (blu dipoli, arancio quadrupoli, giallo sestupoli) dl booster guidano e focalizzano il raggio nell’anello. La luce di sincrotrone viene emessa nelle Beamlines attraverso i passaggi rotondi visibili al centro a destra.
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