The U.S. Department of Energy and CERN establish contributions for next-generation experiments and scientific infrastructure located both at CERN and in the United States
Prototype detectors for the Deep Underground Neutrino Experiment under construction at CERN. Photo: Maximilien Brice, CERN
The United States Department of Energy (DOE) and the European Organization for Nuclear Research (CERN) last week signed three new agreements securing a symbiotic partnership for scientific projects based both in the United States and Europe. These new agreements, which follow from protocols signed by both agencies in 2015, outline the contributions CERN will make to the neutrino program hosted by Fermilab in the United States and the U.S. Department of Energy’s contributions to the High-Luminosity Large Hadron Collider upgrade program at CERN.
Researchers, engineers and technicians at CERN are currently designing detector technology for the U.S. neutrino research program hosted by Fermilab. Neutrinos are nearly massless, neutral particles that interact so rarely with other matter that trillions of them pass through our bodies each second without leaving a trace. These tiny particles could be key to a deeper understanding of our universe, but their unique properties make them very difficult to study. Using intense particle beams and sophisticated detectors, Fermilab currently operates three neutrino experiments (NOvA, MicroBooNE and MINERvA) and has three more in development, including the Deep Underground Neutrino Experiment (DUNE) and two short-baseline experiments on the Fermilab site, one of which will make use of the Italian ICARUS detector, currently being prepared for transport from CERN.
The Long Baseline Neutrino Facility will provide the infrastructure needed to support DUNE both on the Fermilab site in Illinois and at the Sanford Underground Research Facility in South Dakota. Together, LBNF/DUNE represent the first international megascience project to be built at a DOE national laboratory.
The first agreement, signed last week, describes CERN’s provision of the first cryostat to house the massive DUNE detectors in South Dakota, which represent a major investment by CERN to the U.S.-hosted neutrino program. This critical piece of technology ensures that the particle detectors can operate below a temperature of minus 300 degrees Fahrenheit, allowing them to record the traces of neutrinos as they pass through.
The CMS detector on the Large Hadron Collider at CERN. Photo: CERN
The agreement also formalizes CERN’s support for construction and testing of prototype DUNE detectors. Researchers at CERN are currently working in partnership with Fermilab and other DUNE collaborating institutions to build prototypes for the huge subterranean detectors which will eventually sit a mile underground at the Sanford Underground Research Facility in South Dakota. These detectors will capture and measure neutrinos generated by Fermilab’s neutrino beam located 800 miles away. The prototypes developed at CERN will test and refine new methods for measuring neutrinos, and engineers will later integrate this new technology into the final detector designs for DUNE.
The agreement also lays out the framework and objectives for CERN’s participation in Fermilab’s Short Baseline Neutrino Program, which is assembling a suite of three detectors to search for a hypothesized new type of neutrino. CERN has been refurbishing the ICARUS detector that originally searched for neutrinos at INFN’s Gran Sasso Laboratory in Italy and will ship it to Fermilab later this spring.
More than 1,700 scientists and engineers from DOE national laboratories and U.S. universities work on the Large Hadron Collider (LHC) experiments hosted at CERN. The LHC is the world’s most powerful particle collider, used to discover the Higgs boson in 2012 and now opening new realms of scientific discovery with higher-energy and higher-intensity beams. U.S. scientists, students, engineers and technicians contributed critical accelerator and detectors components for the original construction of the LHC and subsequent upgrades, and U.S. researchers continue to play essential roles in the international community that maintains, operates and analyzes data from the LHC experiments.
The second agreement concerns the next phase of the LHC program, which includes an upgrade of the accelerator to increase the luminosity, a measurement of particle collisions per second. Scientists and engineers at U.S. national laboratories and universities are partnering with CERN to design powerful focusing magnets that employ state-of-the-art superconducting technology. The final magnets will be constructed by both American and European industries and then installed inside the LHC tunnel. The higher collision rate enabled by these magnets will help generate the huge amount of data scientists need in order to search and discover new particles and study extremely rare processes.
American experts funded by DOE will also contribute to detector upgrades that will enable the ATLAS and CMS experiments to withstand the deluge of particles emanating from the LHC’s high-luminosity collisions. This work is detailed in the third agreement. These upgrades will make the detectors more robust and provide a high-resolution and three-dimensional picture of what is happening when rare particles metamorphose and decay. Fermilab will be a hub of upgrade activity for both the LHC accelerator and the CMS experiment upgrades, serving as the host DOE laboratory for the High-Luminosity LHC Accelerator Upgrade and the CMS Detector Upgrade projects.
These are the folks from the 1969 Federal Summer Employment Program for Youth. Keith Coiley is in the second row, sixth from the left. For names of everyone pictured, visit the photo database. Photo: Fermilab
When I first started out here, in 1970, I worked with the farm crew. They had us going around cleaning out a lot of the barns after the farmers who were here on the land left. Hindsight being 20/20, there was a lot of really neat stuff that we threw away: We weren’t trying to preserve history or anything like that. We just wanted the barns cleaned out. For one, we needed a place to store the hay that we were growing for the buffalo.
That was some of the hardest work I ever did. We had a barn that we had stacked to the rafters with hay. But some of the baled hay hadn’t dried enough, and it spontaneously combusted. We came in the next day, and all that was left was the barn’s foundation.
I was also one of the people who cut the grass. It was more difficult than I had realized. The lab was just starting, and the equipment they had was just awful. The grass was very tall, and we had these push mowers. You’d go two feet and they’d clog up. It was similar with raking: They gave us garden rakes instead of a grass rakes. We finally got a riding mower that summer, and we were supposed to take turns using it. There were three guys that were messing around with it — fighting over it — and at some point they all bailed while it was running, and the mower ran into a tree. It was wrecked.
That was the first time I’d seen people get fired from the lab. They asked only a few of us to come back that summer. I was asked to come back, and I guess the rest is kind of history.
It was during the springtime month of May that Fermilab celebrated its first Arbor Day. It also received the name Fermi National Accelerator Laboratory in May, during a dedication attended by Laura Fermi. DZero observed its first collisions in May. Read on for more May milestones.
Robert Betz shows the prairie to Robert R. Wilson.
May 1974: Prairie restoration begins
In May 1974, the lab began its efforts to restore the prairie that once occupied the site by planting several small plots of native plants. The project was directed by an Advisory Committee led by Robert Betz of Northeastern Illinois University, along with people from the Morton Arboretum, the Illinois Chapter of The Nature Conservancy and the Cook County Forest Preserves. They were assisted by the lab Prairie Committee, which was composed of interested lab employees. In June 1975, the lab planted the first 13 acres of native prairie on the land encircled by the Main Ring using seeds from the first lab plots, Morton Arboretum and the prairie remnant at Markham, Illinois.
Fermilab Director Pier Oddone and Deputy Director Young-Kee Kim get ready for the groundbreaking.
May 1, 2009: NOvA detector building groundbreaking
NOvA (NuMI Off-Axis Electron Neutrino Appearance) was the successor to MINOS. NOνA scientists use a 300-ton particle detector at Fermilab (the near detector) and a 14,000-ton detector in northern Minnesota (the far detector) to study neutrino oscillations. NOvA began construction of the far detector building in Ash River, Minnesota on May 1, 2009.
Robert R. Wilson helps plant a tree at the lab’s first Arbor Day celebration.
May 2, 1969: First Arbor Day
Lab director Robert R. Wilson sought to preserve and enhance the natural beauty of the lab site, which he accomplished in part by rerouting certain roads on site to preserve some of the largest trees and working with lab staff to plant trees at the lab’s first annual Arbor Day celebration, held just six months after the NAL staff finished moving to the site.
Robert R. Wilson watches as his sculpture is moved into place.
May 9, 1978: Acqua Alle Funi sculpture erected
Lab director Robert R. Wilson designed the hyperbolic obelisk sculpture that stands in the reflection pond in front of Wilson Hall. Wilson, with assistance from lab staff, had worked on the sculpture since January.
The Sloan Digital Sky Survey telescope is located in located at Apache Point Observatory in southeast New Mexico.
May 9, 1998: Sloan Digital Sky Survey receives first light
Fermilab has played a key role in the Sloan Digital Sky Survey, an international effort that uses a telescope based in New Mexico to create detailed maps of the universe. The telescope began its observations on May 9, 1998, and Fermilab director John Peoples served as its director from 1998 to 2003.
Laura Fermi, Enrico Fermi’s widow, speaks at the dedication.
May 11, 1974: Dedication of the lab
On a windy day in May 1974, Atomic Energy Commission (AEC) Chair Dixy Lee Ray dedicated the National Accelerator Laboratory as the Fermi National Accelerator Laboratory. In 1969, the AEC had announced its decision to name the lab in honor of Nobel Prize-winning Italian physicist Enrico Fermi, famous for producing the world’s first controlled, self-sustaining nuclear chain reaction at the University of Chicago in 1942 and for naming the neutrino. The wartime work of Fermi and other physicists had led to the creation of the AEC and the national laboratory system. Enrico Fermi’s widow, Laura Fermi, spoke at the event.
The DZero detector comes out of its hall.
May 12, 1992: DZero observes first collisions
When planning for DZero began in 1983, it was envisioned as an experiment that would complement CDF by observing and analyzing proton-antiproton collisions using different techniques. DZero received formal funding approval in early 1985, construction began in July 1985, and the experiment began detecting proton-antiproton collisions on May 12, 1992. DZero, an international collaboration of, at its peak, more than 600 physicists from 18 countries, would become one of Fermilab’s flagship experiments.
The NuMI target shaft tunnel undergoes construction.
May 31, 2000: NuMI groundbreaking ceremony
On a stormy day in May, Fermilab held the groundbreaking ceremony for the NuMI (Neutrinos at the Main Injector) beam. The NuMI beam used the Main Injector proton beam to strike a carbon target and generate the world’s most intense beam of neutrinos, a key part of Fermilab’s move towards focusing on neutrino physics. The beam was completed in 2005.