The second tour will go to the Fermilab Accelerator Science and Technology (FAST) area and then proceed to the Cryomodule Test Facility (CMTF) to see the Cryomodule Test Stand 1 (CMTS1) and the PIP-II Injector Experiment (PXIE) R&D areas.
Space is limited on both tours. Please make your tour choice when registering.
MINOS/NOvA
MINOS - Main Injector Neutrino Oscillation Search - is an experiment designed to study the phenomena known as neutrino oscillations. The experiment uses a beam of neutrino particles produced by the NuMI beamline facility - Neutrinos at the Main Injector. The beam of neutrinos is sent through the two MINOS detectors, one at Fermilab and one in the Soudan Mine in northern Minnesota. The two detectors are about 735-km apart, making what is called a "long-baseline" neutrino experiment. The tour will take visitors 350 feet below the surface to see MINOS experimental areas. 300 feet underground into the NuMI tunnel and check out the MINERvA and MINOS near detectors. Learn about neutrino beams and long-baseline experiments. Coordinated by Bill Lee.
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FAST
The Fermilab Accelerator Science and Technology (FAST) currently under construction at Fermilab will soon enable a broad range of beam-based experiments to study fundamental limitations to beam intensity and to develop transformative approaches to particle-beam generation, acceleration and manipulation. FAST incorporates a superconducting radio-frequency (SRF) linac coupled to a photoinjector and small-circumference storage ring capable of storing electrons or protons. FAST will establish a unique resource for R&D towards Energy Frontier facilities and a test-bed for SRF accelerators and high-brightness beam applications.
CMTF
The Cryomodule Test Facility (CMTF) is a research and development facility for accelerator science and technology, in particular, the testing and validating of Superconducting Radio Frequency (SRF) components. CMTF provides the necessary test bed to measure and characterize the performance of SRF cavities in a cryomodule. CMTF was designed to be a flexible test facility, configurable in different ways to meet the needs of current as well as future projects at Fermilab and abroad. The building's main components are two test caves (described below), a custom-built superfluid cryo plant able to produce 500 watts of refrigeration at 2 Kelvin, clean room and parts cleaning area, and office/control room space.
CMTS1
The first test stand, CMTS1, exists to test cryomodules, each containing multiple SRF cavities, of various frequencies in pulsed or continuous wave mode. It is currently being prepared to support the testing of 8-cavity cryomodules for the LCLS-II project being built at the SLAC National Accelerator Laboratory in California. Both 1.3 and 3.9 GHz cryomodules will be tested in Continuous Wave (CW) mode for LCLS-II. One of its unique features is cryomodule support girders fashioned out of 316L stainless steel to maintain a low ambient magnetic environment which is critical to the operation of state-of-the-art high performance SRF cavities.
PXIE
The second test stand currently houses PXIE, the integrated systems test for the front-end of the proposed PIP-II accelerator. It is expected to accelerate a 2-mA CW beam up to 30 MeV. Currently the Ion Source, Low Energy Beam Transport Line, Radio Frequency Quadrupole, and Medium Energy Transport Line are installed and being commissioned. The major goal of the project is a validation of the PIP-II concept and elimination of technical risks.
The Ion Source is a 30 kV H- ion source designed to operate DC up to 15 mA. A flow of roughly 10 sccm of hydrogen is sent into the body of the ion source. A filament is heated up to provide a flow of electrons which excite various vibrational modes to both disassociate the H2 and to produce the H-.
The LEBT consists of 3 solenoid magnets for focusing the beam diagnostics to measure the beam current and beam shape, and a chopper system which is a fast electrostatic device which kicks beam into an absorber or allows beam to pass. This will be used to define a beam structure that goes to the RFQ.
The RFQ, the Radio Frequency Quadrupole, operates at 162.5 MHz with a nominal voltage of 60 kV. The RFQ does two things, it continually accelerates the beam (from 30 kV up to 2.1 MeV) and focuses the beam along its length. This device is designed to operate in CW (Continuous Wave) mode but can be pulsed.
The MEBT consists of a set of quadrupoles for focusing, dipole correctors for steering the beam, scrapers to eliminate halo particles and beam diagnostics to measure beam current, beam shape (emittance) and the bunch shape, and a set of Buncher cavities which are designed to maintain the 162.5 MHz bunch shape. This line is currently being built up and when complete will connect to a cryomodule of eight Half Wave Resonators and then to a cryomodule with eight Single Spoke Resonators.