Find out about the plans to build an 8 GeV Linac at Fermilab!

The Fermilab Linac is a negative hydrogen ion, 400 MeV accelerator. It includes a 25 keV H-minus ion source, a 750 keV electrostatic accelerating column, a 116 MeV drift-tube (Alverez) linac operating at 201.25 MHz, and a 401 MeV side-coupled cavity linac operating at 805 MHz. Many details can be obtained from the nice picture displays listed in the sidebar to the left.

The Fermilab Linac provides beam for Booster operation at frequencies from 0.1 to 5 Hz. Several times per week, we provide 66 MeV protons to the Fermilab Neutron Therapy Facility (NTF). This outstanding cancer treatment facility has been part of the Linac for over 30 years.

Also the Fermilab Linac provides physics-quality beam to CDF and D0.

Detailed Data plots for critical Linac devices
Current machine status
Run Coordinator statistics
Current Collider run performance

Select a Linac Parameter Page for viewing

Linac beam current over the last 24 hours (updated every every 10 minutes, beginning at :02).

Our beam lasts between 15 and 50 microseconds, and repeats at 15 Hz, for a duty factor between 0.0225% and 0.0750%. Zero current usually means that we are not being asked to produce beam for the rest of the facility.

This is the transmission through Linac over the last week