Cryomodule Test Facility (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 consists of two new adjoined buildings - the smaller Compressor Building houses the warm compressors, vacuum pumps, chilled water system and utilities for the entire facility. The larger building houses two Cryomodule Test Stands (CMTS), a test area for RF components and electrical systems, a cleanroom area for particle-free preparation of SRF components, and a control room/office area. The facility houses a 500W at 2 K superfluid cryogenic plant. One of the test stands, CMTS 1, is currently operational for testing cryomodules for the Linac Coherent Light Source-II (LCLS-II) project being built at SLAC Linear Accelerator. The second test stand for the PIP-II Injector Test, which is the R&D program to test the front-end of the proposed PIP-II accelerator, is under construction.
Industrial Building (B1) Test facility
Fermilab’s Industrial Building 1 (IB1) is a cryogenic test facility for superconducting (SC) magnets, SRF cavities, and other particle accelerator components. This facility supports or has supported the Tevatron, the Large Hadron Collider (LHC), and LCLS-II projects, as well as R&D programs for magnet and cavity technologies. The cryogenic test stands of IB1 as well as the supporting cryogenic infrastructure will be seen. The Vertical Magnet Test Facility (VMTF) cryostat can test magnets up to roughly 0.61 m (24 in) in diameter and 3 m (118 in) in length, at currents up to 30 kA, and temperatures down to 1.8 K. The Vertical Cavity Test Facility (VCTF) cryostats VTS-1, 2, and 3 can test bare and dressed cavities at frequencies of 650 MHz, 1.3 GHz, and 3.9 GHz at temperatures below 1.4 K. Additional stands support testing of LHC Interaction Region quadrupole magnets, high temperature superconductor power leads, temperature sensor calibration, and materials testing. The supporting cryogenic infrastructure includes a CTI 1500 liquefier, helium and nitrogen distribution systems, and warm pumping stations for sub atmospheric operations.
Proton Center (PC) 4
PC4 is a beamline enclosure housing a cryogenic system used for prototyping the membrane cryostat technology and the LBNF/DUNE liquid argon system. Tour participants will see the Liquid Argon Purity Demonstrator (LAPD) vessel, a liquid argon filtration system, and the DUNE 35 ton membrane cryostat vessel. The LAPD tank was used to demonstrate the gas argon piston purge technique for removing the initial air contaminant. A liquid argon circulation system with molecular sieve and copper catalyst removes water and oxygen and moves the liquid between the LAPD tank and the 35 ton membrane cryostat vessel. The 35 ton cryostat was used to prototype the membrane cryostat technology and its use to host a high purity scientific experiment. The exterior of the 35 ton membrane cryostat is an open topped hollow concrete cube that serves as the pressure containment structure for the internal membrane and foam insulation. Tour participants must able to climb stairs and can witness the complex cryogenic piping and infrastructure on the top of the 35 ton tank. The LAPD tank is a 3 meter diameter by 3 meter tall foam insulated vessel. The circulation system circulates 40 liter per minute of liquid argon through 80 liter filtration vessels. The 35 ton membrane cryostat has a total volume of 31 cubic meters and a liquid capacity of 38.6 tons of liquid argon. The cryogenic system is not currently in operation. It was last operated in the April of this year.
Short Base Neutrino (SBN) /MicroBooNe
Fermilab’s Short Baseline Program will soon house three independent neutrino beam experiments using specialized LAr cryostats to house Time Projection Chambers to track particles. Each detector/experiment is to sit within the Booster Neutrino Beam (BNB). The intermediate experiment known as MicroBooNe is now operational while the SBN Near Detector (SBND) and SBN Far Detector (SBN-FD) will come online within the next two years.
During this tour we will make a visit to the MicroBooNE facility as well as two new buildings, which will house both future detectors. MicroBooNe’s experimental cryostat contains 170 tons (34,000 gallons) of Liquid argon requiring very high purity. Purity levels for LAr detectors require parts per trillion levels for oxygen and water. Facilities for storage of LAr and LN2, condensers, pumps for circulating LAr from the cryostat and filtering the LAr continuously exist at the MicroBooNe facility. Vessels containing mole sieve and copper are used for filtering LAr at FNAL experiments.
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 consists of two new adjoined buildings - the smaller Compressor Building houses the warm compressors, vacuum pumps, chilled water system and utilities for the entire facility. The larger building houses two Cryomodule Test Stands (CMTS), a test area for RF components and electrical systems, a cleanroom area for particle-free preparation of SRF components, and a control room/office area. The facility houses a 500W at 2 K superfluid cryogenic plant. One of the test stands, CMTS 1, is currently operational for testing cryomodules for the Linac Coherent Light Source-II (LCLS-II) project being built at SLAC Linear Accelerator. The second test stand for the PIP-II Injector Test, which is the R&D program to test the front-end of the proposed PIP-II accelerator, is under construction.
Industrial Building (B1) Test facility
Fermilab’s Industrial Building 1 (IB1) is a cryogenic test facility for superconducting (SC) magnets, SRF cavities, and other particle accelerator components. This facility supports or has supported the Tevatron, the Large Hadron Collider (LHC), and LCLS-II projects, as well as R&D programs for magnet and cavity technologies. The cryogenic test stands of IB1 as well as the supporting cryogenic infrastructure will be seen. The Vertical Magnet Test Facility (VMTF) cryostat can test magnets up to roughly 0.61 m (24 in) in diameter and 3 m (118 in) in length, at currents up to 30 kA, and temperatures down to 1.8 K. The Vertical Cavity Test Facility (VCTF) cryostats VTS-1, 2, and 3 can test bare and dressed cavities at frequencies of 650 MHz, 1.3 GHz, and 3.9 GHz at temperatures below 1.4 K. Additional stands support testing of LHC Interaction Region quadrupole magnets, high temperature superconductor power leads, temperature sensor calibration, and materials testing. The supporting cryogenic infrastructure includes a CTI 1500 liquefier, helium and nitrogen distribution systems, and warm pumping stations for sub atmospheric operations.
Proton Center (PC) 4
PC4 is a beamline enclosure housing a cryogenic system used for prototyping the membrane cryostat technology and the LBNF/DUNE liquid argon system. Tour participants will see the Liquid Argon Purity Demonstrator (LAPD) vessel, a liquid argon filtration system, and the DUNE 35 ton membrane cryostat vessel. The LAPD tank was used to demonstrate the gas argon piston purge technique for removing the initial air contaminant. A liquid argon circulation system with molecular sieve and copper catalyst removes water and oxygen and moves the liquid between the LAPD tank and the 35 ton membrane cryostat vessel. The 35 ton cryostat was used to prototype the membrane cryostat technology and its use to host a high purity scientific experiment. The exterior of the 35 ton membrane cryostat is an open topped hollow concrete cube that serves as the pressure containment structure for the internal membrane and foam insulation. Tour participants must able to climb stairs and can witness the complex cryogenic piping and infrastructure on the top of the 35 ton tank. The LAPD tank is a 3 meter diameter by 3 meter tall foam insulated vessel. The circulation system circulates 40 liter per minute of liquid argon through 80 liter filtration vessels. The 35 ton membrane cryostat has a total volume of 31 cubic meters and a liquid capacity of 38.6 tons of liquid argon. The cryogenic system is not currently in operation. It was last operated in the April of this year.
Short Base Neutrino (SBN) /MicroBooNe
Fermilab’s Short Baseline Program will soon house three independent neutrino beam experiments using specialized LAr cryostats to house Time Projection Chambers to track particles. Each detector/experiment is to sit within the Booster Neutrino Beam (BNB). The intermediate experiment known as MicroBooNe is now operational while the SBN Near Detector (SBND) and SBN Far Detector (SBN-FD) will come online within the next two years.
During this tour we will make a visit to the MicroBooNE facility as well as two new buildings, which will house both future detectors. MicroBooNe’s experimental cryostat contains 170 tons (34,000 gallons) of Liquid argon requiring very high purity. Purity levels for LAr detectors require parts per trillion levels for oxygen and water. Facilities for storage of LAr and LN2, condensers, pumps for circulating LAr from the cryostat and filtering the LAr continuously exist at the MicroBooNe facility. Vessels containing mole sieve and copper are used for filtering LAr at FNAL experiments.