FAST - Fermilab Accelerator Science and Technology (FAST)
The mission of the Fermilab Accelerator Science and Technology (FAST) facility is to explore the concepts and technologies that will enable and enhance the next generation of particle accelerators. The facility maintains a robust scientific program ranging from the production and control of high-intensity beams, in support of Fermilab’s intensity-frontier mission, to fundamental studies of individual relativistic particles and their dynamics. The centerpiece of these efforts is the Integrable Optics Test Accelerator (IOTA) ring. The IOTA ring accepts injection of 150-MeV electrons from the FAST linac, a state-of-the-art superconducting linear accelerator, or 2.5-MeV protons from the IOTA Proton Injector. The facility can be extensively reconfigured for specific high-impact science targets while simultaneously allowing for exploratory studies across a broad range of topics in accelerator and beam physics.
Facility bio
Name of Facility: Fermilab Accelerator Science and Technology Facility (FAST)
Laboratory: Fermi National Accelerator Laboratory, aka Fermilab
Address: Kirk and Pine, Batavia, IL, 60510
Point of Contact: Jonathan Jarvis and Aleksandr Romanov
Facility website: Link
Publications list: Link
| Parameter | Value |
|---|---|
| Beam Type | Electrons and protons |
| Beam Energy | 5 - 300 MeV |
| Bunch Charge | Up to 3.2 nC |
| Repetition Rate | 1 - 5 Hz (~ 1 ms) 3 MHz macropulse (up to 3000 bunches) |
| Bunch Length | 1 - 50 ps |
| Normalized beam emittance at 50 pC/pulse | Horizontal: 1.6 μm Vertical: 3.4 μm |
| Parameter | Value |
|---|---|
| Beam Type | Electrons and protons |
| Beam Energy | (e-) 50-150 MeV (p+) 2.5 MeV |
| Number of particles in a bunch | (e-) 1-4e9 (p+) < 6.5e9 |
| Repetition Rate | (e-) 7.5 MHz (p+) 0.5475 MHz |
| Bunch Length | (e-) ~5-500 ps (p+) 40 m |
| Geometric beam emittance | (e-) 0.1-100 nm (p+) 0.3 μm |
Available tools:
IOTA storage ring:
three experimental insertion regions (two @ ~3m and one @ 6m)
synchrotron-radiation monitors for beam imaging and emittance measurements
streak camera for longitudinal-profile measurements
button BPMs, DCCT, wall-current monitor, stripline BPMs and kickers with integrated feedback systems
single-photon detection and timing systems; single-particle injection, storage and 6D phase-space tracking
independently addressable power supplies for all magnetic elements
sextupoles, octupoles, magnetic undulators and specialized nonlinear-magnet insertions
optical stochastic cooling insertion
Capabilities
Science specialists: Nonlinear dynamics, beam cooling, electron lenses, space charge, beam instabilities, beam manipulation and measurement, accelerator design, accelerator controls, accelerator operations, AI/ML, simulations of accelerators and beams, single-photon diagnostics, laser physics, photocathodes, photoinjectors, normal-conducting and superconducting RF.
FAST linac low-energy (<50 MeV) beamline:
high-brightness photoinjector (4.5 MeV) with bucking and main solenoids and photocathode load-lock system
two SRF capture cavities (+40 MeV; includes HOM diagnostics) for acceleration and energy chirp
bunch compressor (~10x compression) with insertable apertures/screens;
insertable diagnostics (YAG, OTR)
FAST linac high-energy (<300 MeV) beamline:
ILC-type 1.3GHz cryomodule (+250-MeV max energy gain)
extensive space (~60 meters) for experimental insertions
magnetic undulators
insertable diagnostic screens (YAG, OTR)
IOTA Proton Injector (2.5 MeV)
Duoplasmatron 50-kV proton source
2.5-MeV RFQ accelerator
Toroids, Faraday cup, wall-current monitor, BPMs
LEBT/MEBT Allison Scanners
Scanning Wires
Ideal Experiment
IOTA/FAST is not a DOE/SC User Facility but rather operates as a Collaboration. This provides significant latitude in developing new experimental programs at the facility. Our research program focuses on topics of particular interest to the DOE Office of High Energy Physics, but is also exceptionally broad and general in nature, and in principle, we may entertain any experiment in Accelerator Science and Technology that is scientifically or technologically impactful and supports the field generally. The facility operates on a nominally six-months-on/six-months-off model. The ideal experiment for BeamNetUS is one that is scientifically impactful, leverages the unique capabilities of IOTA/FAST, and is non-interfering with the core scientific program for any given experimental run. It is also important that one or more scientific/technical personnel at IOTA/FAST can be fully integrated into the experiment’s planning, installation, operations and analysis. Experiments using only the existing hardware systems at IOTA/FAST are the most straightforward to execute, but depending on alignment with our core research program we can accommodate experiments requiring significant hardware changes or installations; in this case, we encourage potential collaborators to contact us early so that detailed questions of hardware integration and programmatic fit can be explored.
The IOTA storage ring at Fermilab's FAST facility
The Optical Stochastic Cooling insertion during IOTA Run#3, in which OSC was demonstrated for the first time.
High-energy experimental beamline at FAST; shown here is the FAST-GREENS experiment - installation in progress.
The new IOTA Proton Injector beamline - installation in progress.
The new IOTA Proton Injector beamline - installation in progress.
Danilov-Nagaitsev nonlinear-magnet insertion prior to installation in IOTA.
IOTA Run #4 operations.
IOTA Run #4 operations.
OSC Amplifier R&D in the FAST laser lab.