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98:, LBNF/hosted by Fermilab: Scientists with the Deep Underground Neutrino Experiment (DUNE) hope to revolutionize our understanding of the role neutrinos play in the creation of the universe. The Long-Baseline Neutrino Facility (LBNF) will shoot a beam of neutrinos from Fermilab in Batavia, Illinois, 800 miles through the earth to detectors deep underground at Sanford Lab in Lead, South Dakota.
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129:: The Majorana Demonstrator uses 40 kilograms of pure germanium crystals enclosed in deep-freeze cryostat modules to answer one of the most challenging and important questions in physics: are neutrinos their own antiparticles? If the answer is yes, it will require rewriting the Standard Model of Particles and Interactions, our basic understanding of the physical world.
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LUX was determined to be the most sensitive dark matter detector in the world. The
Majorana experiment is searching for a rare type of radioactive decay called “neutrinoless double-beta decay.” If this phenomenon were detected, it could confirm that neutrinos are their own antiparticles and provide clues as to why matter prevailed over antimatter.
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where it awaits the treatment process. The water, pumped from the deepest drifts of the
Sanford Lab and the tailing-laden reservoir of Grizzly Gulch, is filtered through multiple systems that clean dirt, minerals and toxins from the water, making it safe to return to natural stream systems. Once treated, the water is released into
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The first two major physics experiments located on the 4850 Level were the Large
Underground Xenon (LUX) experiment and the Majorana Demonstrator experiment. LUX is housed in the same cavern that was excavated for Ray Davis's experiment in the 1960s. In October 2013, after an initial run of 80 days,
356:
closed in 2002, the
National Science Foundation (NSF) had already considered the facility as a possible future site for the United States’ Deep Underground Science and Engineering Laboratory (DUSEL). In 2006, the facility's namesake T. Denny Sanford donated $ 70 million to the facility, Barrick Gold
270:
These LBCs use germanium detectors housed in lead brick containers to screen materials, identifying ionizing radiation released by a material over time as its radioactive elements decay. This counting process helps researchers decide which types of materials are best-suited for their experiments. It
257:
This state-of-the-art laboratory features a 72,000-gallon (272,549 liters) water tank, which serves as additional shielding from cosmic radiation; and a water-deionization system, cleanroom and control room for researchers. The researchers outfitted the Davis Cavern with a xenon purification system,
304:
Sanford Lab monitors the health of these streams, counting fish and macro invertebrate populations and tests for contaminants. For this regulation, in 2019, the WWTP was recognized for the eleventh consecutive year by the South Dakota
Department of Environment and Natural Resources (DENR) for their
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A consortium agreement between LBC owners allows the counters to be available to other universities and partners, creating opportunities for collaborative research. While the counters are dedicated to supporting high-priority experiments, the consortium allows those counters to also be used for all
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and encompasses 223 acres on the surface and 7,700 acres underground. The surface property includes both the Yates Campus and the Ross Campus, named respectively for the Yates and Ross Shafts, which provide access to underground areas. The property was donated by
Homestake's parent company, Barrick
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Formalized in the spring of 2014, the
Sanford Science Education Center (SSEC) is a partnership between the Sanford Underground Research Facility, Black Hills State University and the Sanford Lab Homestake Visitor Center. The SSEC is committed to developing and facilitating rich, innovative learning
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Since
Sanford Lab began operating in 2008, billions of gallons of water have been treated at the Waste Water Treatment Plant (WWTP). To keep naturally-infiltrating water from accumulating underground, approximately 700 gallons of water per minute are pumped from underground to a surface reservoir
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Homestake carved out more than 370 miles of underground shafts, drifts and ramps, and
Sanford Lab currently maintains about 12 miles for science activities. The main level for science is the 4850 Level, which can be accessed through the Yates and Ross shafts. At 1,490 meters, SURF is the deepest
119:: The Enhanced Geothermal Systems (EGS) Collab Project is a collaboration of eight national laboratories and six universities who are working to improve geothermal technologies. EGS conducts field experiments to better understand and model rock fracturing and other elements of geothermal energy.
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On the 4850 Level, the Black Hills State
University Underground Campus (BHUC) houses Sanford Lab's low-background counting facility—a class-1,000 cleanroom containing several ultra-sensitive low background counters (LBCs) used to assay materials for ultra-sensitive experiments—and an adjoining
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The Surface Assembly Laboratory (SAL) is a 780 square-foot laboratory with a class-1000 clean room. This laboratory provides space for researchers to clean and assemble parts of their experiments, before transporting them underground. To accommodate these processes, the SAL includes aluminum
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CASPAR: The Compact Accelerator System for Performing Astrophysical Research (CASPAR) collaboration uses a low-energy accelerator (50 foot long) to better understand how chemical elements are produced in the Universe and at what rate and how much energy is produced during the process. The
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construction of the accelerator begun around 2015 and achieved first beam in 2017. In spring of 2021, the CASPAR experiment was mothballed due to excavations starting nearby. The accelerator was disassembled and put into storage. The research group plans to return to SURF in the future.
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In December 2010, the National Science Board decided not to fund further design of DUSEL. However, in 2011 the Department of Energy, through the Lawrence Berkeley National Laboratory, agreed to support science operations at the lab. Today, Sanford Lab operations are funded by the
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Sanford Lab also hosts public outreach events, including Deep Talks Science for Everyone series and a city-wide science festival, Neutrino Day, which draws 1,500 attendees annually. While public tours of the facility are not available, in 2015, Sanford Lab built the
182:., a pioneer in neutrino research, built a solar neutrino detector deep underground at Sanford Lab. When he discovered only a third of what had been predicted, he inadvertently created what came to be called the “solar neutrino problem.” Other experiments—
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Sanford Lab's depth, rock stability and history make it ideal for sensitive physics experiments that need to escape high energy cosmic radiation from the sun. Additionally, the facility is used for researchers studying geology, biology and engineering.
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In 2017, the Deep Underground Neutrino Experiment (DUNE) collaboration held a groundbreaking on the 4850 Level of Sanford Lab to mark the start of excavation for the Long-Baseline Neutrino Facility, which will host the international DUNE experiment.
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experiences and preparing the next generation of scientists, engineers, mathematicians and educators. The SSEC lends support to Sanford Lab's Education and Outreach programs, BHSU's Underground Campus and the Sanford Lab Homestake Visitor Center.
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DUGL: For several years, the Deep Underground Gravity Laboratory used 20 seismometers strategically placed on the surface and on several levels of Sanford Lab from the 300 to the 485 Levels. Placed in a grid, the seismometers monitored
254:(LUX), operated from 2013 to 2016. The Davis Cavern gave the experiment the environment it needed to become the most sensitive dark matter detector in the world, a spot it held for more than one year after it was decommissioned.
160:, giving researchers a 3-Dimensional seismic picture that was used to inform the design of future gravitational wave detectors. DUGL, which was decommissioned in 2017, was a Laser Interferometer Gravitational-Wave Observatory (
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kISMET: The kISMET (permeability (k) and Induced Seismicity Management for Energy Technologies) drilled and cored five 50-meter deep boreholes to learn more about rock structure. The experiment was a precursor to EGS Collab.
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Corporation made a land donation and state legislation formed the South Dakota Science and Technology Authority (SDSTA), a quasi-government entity. These developments culminated with the creation of Sanford Lab in 2007.
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GEOXTM: GEOXTM hopes to create the world's largest, deepest network of underground fiber-optic strain and temperature sensors and tiltmeters to measure the movement of rock systems in the underground laboratory.
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In May 2016, the Large Underground Xenon experiment (LUX) completed its experimental run. Although it didn't detect dark matter, it was declared the most sensitive dark matter detector in the world at the time.
989:
Mount, B. J.; Thomas, K. J.; Oliver-Mallory, K. C.; Lesko, K. T.; Schnee, R. W.; Henning, R.; MacLellan, R. F.; Guerra MBB; Busch, M.; Christofferson, C. D.; Wilkerson, J. F.; Xu, W.; Mei, D. (2017).
210:. Overlooking the ridge of the 1,000-foot-deep Open Cut, the visitor center promotes public appreciation of Lead's rich mining history and an understanding of the science advancing at Sanford Lab.
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202:(BHSU). The program provides resources for regional educators including 9 assembly programs, 13 curriculum modules and 12 field trips in an effort to promote STEM education.
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also provides data to researchers, allowing them to calculate how much radioactivity they can expect to see coming from their materials over the life of an experiment.
109:: LUX-ZEPLIN (LZ) is a next-generation dark matter detector that replaced the LUX experiment deep underground at Sanford Lab. The experiment continues the search for
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Transparent Earth: The project is developing a deep seismic observatory for scientific investigations, sensor technology development and safety at the Sanford Lab.
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servers, electronics and the experiment itself. All these are in service once again for the next-generation dark matter experiment, LUX-ZEPLIN (LZ).
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workspace can be used for a variety of disciplines. The facility is managed by Black Hills State University and houses five operational LBCs.
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physics research, biology, geology and engineering. There are currently 28 active research projects housed within the facility.
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underground laboratory in the U.S. For experiments on the 4850 Level, the average rock overburden is approximately 4,300
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113:(Weakly Interacting Massive Particles) using a detector that is 30 times larger and 100 times more sensitive than LUX.
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Sanford Lab is managed by the South Dakota Science and Technology Authority (SDSTA). SURF operations are funded by the
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Even though there were 3 recipients of the Nobel Prize in Physics in 2002, Davis’s share was one-fourth of the prize.
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and T. Denny Sanford in 2009. The underground dedication took place in a space now designated as Governor's Corner.
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After an extensive dewatering process, the 4850 Level of Sanford Lab was dedicated by South Dakota Governor
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The facility is housed at the previous Homestake Gold Mine, a deep underground gold mine founded during the
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sheeting; air locks; a hoist; a 12-foot-deep pit for large assembly projects; and a radon-reduction system.
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50:. The deepest underground laboratory in the United States, it houses multiple experiments in areas such as
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Two main underground campuses, the Davis Campus and the Ross Campus, host experiments on the 4850 Level.
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in Japan—vindicated Davis's work, earning him a one-fourth share of the Nobel Prize in Physics in 2002.
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581:"CASPAR Accelerator // Institute for Structure and Nuclear Astrophysics // University of Notre Dame"
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Within the Davis Campus is the Davis Cavern, which originally housed Dr. Raymond Davis Jr.'s
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452:"Sanford Underground Research Facility Overview | Sanford Underground Research Facility"
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619:"Underground neutrino experiment sets the stage for deep discovery about matter | ORNL"
1118:"Sanford Lab dedicated 4,850 feet underground | Sanford Underground Research Facility"
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The Education and Outreach program is a collaborative venture between Sanford Lab and
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73:. The State of South Dakota also contributed nearly $ 70 million to the project.
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and was redesigned and enlarged for dark matter experiments. The first, the
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directly. The measurements' discrepancy with the flux predicted from the
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1069:"Waste Water Treatment Plant | Sanford Underground Research Facility"
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Gold, to the SDSTA for use as a dedicated research facility in 2006.
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966:"BHSU Underground Campus | Sanford Underground Research Facility"
915:"Anything but abandoned | Sanford Underground Research Facility"
476:"Going deep for science | Sanford Underground Research Facility"
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collaborations and academic users when there is space to spare.
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1142:"MAJORANA Demonstrator | Sanford Underground Research Facility"
695:"World's most sensitive dark matter detector completes search"
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837:"K-12 STEM education | Sanford Underground Research Facility"
329:. The operation, also known as the Davis experiment, allowed
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Dame, Marketing Communications: Web // University of Notre.
667:"Transparent Earth | Sanford Underground Research Facility"
939:"The Davis Campus | Sanford Underground Research Facility"
864:"Public outreach | Sanford Underground Research Facility"
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July 21; Stacey 401-863-3766, 2016 Media contact: Kevin.
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34:
Sanford Underground Research Facility's Yates Headframe
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1094:"Sanford Lab's wastewater treatment plant recognized"
18:
Deep Underground Science and Engineering Laboratory
301:within a few hundred yards of the discharge pipe.
991:"Black Hills State University Underground Campus"
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733:"kISMET | Sanford Underground Research Facility"
643:"GEOXTM | Sanford Underground Research Facility"
585:Institute for Structure and Nuclear Astrophysics
325:in 1876. In the late 1960s, the mine hosted the
605:"CASPAR collaboration disassembles accelerator"
262:Black Hills State University Underground Campus
757:"DUGL | Sanford Underground Research Facility"
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40:Sanford Underground Research Facility (SURF)
27:Underground laboratory in Lead, South Dakota
1612:Science and technology in the United States
717:: CS1 maint: numeric names: authors list (
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208:Sanford Lab Homestake Visitor Center
399:Laboratori Nazionali del Gran Sasso
888:"Sanford Science Education Center"
345:led to Davis's development of the
252:Large Underground Xenon experiment
69:and through a $ 70M donation from
46:, is an underground laboratory in
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810:"The Nobel Prize in Physics 2002"
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532:"The LZ Dark Matter Experiment"
171:Davis's solar neutrino detector
1098:Rapid City Journal Media Group
1008:10.1016/j.apradiso.2017.02.025
995:Applied Radiation and Isotopes
222:SURF is located in the former
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1632:Lawrence County, South Dakota
409:Boulby Underground Laboratory
404:Sudbury Neutrino Observatory
200:Black Hills State University
184:Sudbury Neutrino Observatory
1617:National Science Foundation
1092:Lab, Erin Broberg Sanford.
288:Waste Water Treatment Plant
279:Surface Assembly Laboratory
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370:U.S. Department of Energy
248:Solar Neutrino Experiment
176:Solar Neutrino Experiment
63:U.S. Department of Energy
1622:Underground laboratories
503:"Fermilab | LBNF | Home"
333:to measure the flux of
233:meters water equivalent
347:solar neutrino problem
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194:Education and outreach
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323:Black Hills Gold Rush
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127:Majorana Demonstrator
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327:Homestake experiment
1423:Kimballton aka KURF
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394:Kamioka Observatory
224:Homestake Gold Mine
164:) related project.
77:Scientific Research
1193:44.352°N 103.751°W
1146:www.sanfordlab.org
1122:www.sanfordlab.org
1073:www.sanfordlab.org
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970:www.sanfordlab.org
943:www.sanfordlab.org
919:www.sanfordlab.org
868:www.sanfordlab.org
841:www.sanfordlab.org
786:"Raymond Davis Jr"
671:www.sanfordlab.org
647:www.sanfordlab.org
480:www.sanfordlab.org
456:www.sanfordlab.org
331:Raymond Davis, Jr.
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186:in Canada and the
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48:Lead, South Dakota
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91:Under development
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71:T. Denny Sanford
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1196: /
1184:103°45′04″W
1001:: 130–133.
790:www.bnl.gov
362:Mike Rounds
86:Experiments
52:dark matter
44:Sanford Lab
1606:Categories
1468:LSM/Fréjus
1295:(↕⤡
1243:shielding)
1181:44°21′07″N
1151:2019-04-26
1127:2019-04-26
1103:2019-04-26
1078:2019-04-26
1054:2019-04-26
1030:2019-04-26
975:2019-04-26
948:2019-04-26
924:2019-04-26
897:2019-04-26
873:2019-04-26
846:2019-04-26
819:2019-04-26
795:2019-04-26
766:2019-04-26
742:2019-04-26
704:2019-04-26
676:2019-04-26
652:2019-04-26
628:2019-04-26
590:2019-04-26
565:2019-04-26
560:Energy.gov
541:2019-04-26
536:lz.lbl.gov
512:2019-04-26
485:2019-04-26
461:2019-04-26
435:References
343:luminosity
117:EGS Collab
107:LUX-Zeplin
1391:(↔
1342:CallioLab
1274:(↔
1171:Home page
352:When the
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1017:28314507
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388:See also
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218:Facility
140:Previous
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1513:Soledar
1408:Kamioka
309:History
1528:Soudan
1498:SNOLAB
1327:Boulby
1312:Baksan
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1271:ANDES
1021:S2CID
415:Notes
111:WIMPs
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1573:WIPP
1558:SURF
1453:LSBB
1438:LNGS
1393:4000
1372:CJPL
1297:2800
1276:4800
1013:PMID
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