Accelerators · National lab · Berkeley, CA

Lawrence Berkeley Lab / ALS

Vacuum (at rest)	Storage ring UHV, base pressure ~2e-10 Torr
Vacuum (operation)	Storage ring RF; magnets
Power	Two single-cell RF cavities at 499.642 MHz, klystron-driven; ring 1.9 GeV, 500 mA
Voltage	Storage ring 1.9 GeV; RF 499.642 MHz
Product	Synchrotron light source (Advanced Light Source); ALS-U upgrade to a fourth-generation source (×100 brightness)
Application	Soft X-ray science, spectroscopy, imaging
Customer	DOE; scientific community

Why it matters

Synchrotron terrain, the heart of beamline vacuum, and a direct neighbor.

Sources

• ALS (als.lbl.gov)
• ALS-U $590M upgrade (×100 brightness)
• ALS storage ring RF (499.642 MHz, 1.9 GeV)

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