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Coordinates: 37°12′37″N 128°39′50″E / 37.2102°N 128.6638°E / 37.2102; 128.6638
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Yemilab
예미랩
Formation2022
TypeGovernmental organisation
PurposeBasic science
HeadquartersDaejeon, South Korea
Location
Coordinates37°12′37″N 128°39′50″E / 37.2102°N 128.6638°E / 37.2102; 128.6638
Director
Kim Yeongduk (ko)
Budget31 billion KRW[1]
Rickinasia/sandbox5
Hangul
예미랩
Hanja
禮美랩
Revised RomanizationYemi Raep
McCune–ReischauerYemi Raep

Yemilab is a subterranean dark matter research facility searching for weakly interacting massive particles and neutrinoless double beta decay and sterile neutrinos. The facility is 1,000 meters under Yemi Mountain and encased in limestone. It has a dedicated experimental area of 3,000 m2[2] making it the sixth largest at time of its opening in 2022.[3] There are 17 separate experimental spaces for relocated equipment from the Yangyang Underground Laboratory (Y2L) along with experimental equipment from various domestic universities and institutes.[4] Yemilab is 400 meters deeper and provides 10 times more space than the Yangyang Underground Laboratory.[5] An addition 6,200 m3 cylindrical pit has been prepared in order to accommodate future experiments.

Timeline and location

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From its establishment in 2013, Center for Underground Physics (CUP) of the Institute for Basic Science had been planning the creation of a deep underground laboratory. Approximately three years later, the search was narrowed to sites under mountains Yemisan (Yemi Mountain) and Dutasan (Duta Mountain) both located in Gangwon Province, South Korea. As Mt. Yemi was already hosting the nation's only operating iron ore mine; owned by SM Handuk Iron Mine Co., Ltd. (SM 한덕철광산업, [ko]);[6] permitting was a non-issue, environmental concerns were minimized, and costs were roughly halved compared to Mt. Duta as an existing 627 m long shaft could be utilized. Both sites offered five times the muon mitigation (or reduction) of Yangyang Underground Laboratory.[7] A 35-year contract was signed between the Institute for Basic Science and the owners of the mine.[8]

Initial funding was secured and construction began in September 2017. The first stage of construction included installation of the man cage and digging of the tunnel and was completion in 2018 and 2020, respectively.[9][10] The second stage was completed in August 2022 and included the 6,200 m3 Large Scintillation Counter, AMoRE Hall which is the second largest space, other spaces for detectors, and support facilities. The New Austrian tunneling method was used for excavation. A majority of rock in the experimental area is composed of limestone with what appeared to be some metamorphic and quartz veins. The total volume of excavation is approximately 65,000 m3. Laboratory facilities are located 700 meters away from active mining. By 2022, construction had cost 32 billion KRW ($22 million).[11]

In 2023, various interior enhancements were completed and then experimental equipment started to be relocated into Yemilab with a completion date of end of 2025.

The ground office is the repurposed former Hambaek Middle and High School located 1.6 km from Yemi Station on the Taebaek Line east of Seoul.[12] The second shaft of the Handuk Mine, which is used to access Yemilab, is a further 2.3 km from the ground office.[13]

Experiments

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AMoRE muon veto system.

The majority of the space is used by the Center for Underground Physics. The remaining 30% to 40% of experimental space[8] is used by the Korea Atomic Energy Research Institute, Korea Institute of Geoscience and Mineral Resources, Korea Meteorological Administration, Kyungpook National University, National Institute for Mathematical Sciences, and SpaceLinthech; a NASA startup.

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The documentary Every Single Dot (모든 것) was filmed at Yemilab and premiered at the 29th Busan International Film Festival. Principal Technical Officer So Jungho collaborated on the film.[15][16]

See also

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References

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  1. ^ "Korea builds underground physics laboratory to look into mysteries of universe". The Korea Times. Yonhap News Agency. 5 October 2022. Retrieved 15 October 2024.
  2. ^ "Korea builds underground physics laboratory to look into mysteries of universe". The Korea Times. Yonhap News Agency. 5 October 2022. Retrieved 24 October 2024.
  3. ^ 윤동 (6 October 2022). "SM한덕철광산업, 정선 '예미랩' 지하실험실 완공···우주 근본입자 '암흑물질' 연구 탄력". 애주경제 (in Korean). Retrieved 24 October 2024.
  4. ^ "World's 6th-largest underground lab completed in eastern province". Korea.net. 7 October 2022. Retrieved 15 October 2024.
  5. ^ "Yemi Lab construction kicks off". Institute for Basic Science. 25 April 2019. Retrieved 24 October 2024.
  6. ^ 성회헌 (6 October 2022). "SM한덕철광산업, '예미랩 지하실험실' 완공…"우주입자 연구실 구축사업 본격하"". CEO Score Daily (in Korean). Retrieved 24 October 2024.
  7. ^ 박강순, 방기문 (10 January 2023). "깊은 지하실험시설 'IBS 정선 예미랩'" (in Korean). Korean Physical Society. Retrieved 24 October 2024.
  8. ^ a b 최준석 (30 September 2020). "[물리학자 열전_ 김영덕 IBS지하실험연구단장] 지하1000미터 우주입자실험연구소를 만드는 중". Choi Joonsuk (in Korean). Naver. Retrieved 24 October 2024.
  9. ^ 이동근 (6 October 2022). "SM그룹 한덕철광산업 '예미랩 지하실험실' 완공 … 암흑물질 연구 '시동'". 뉴스프리존 (in Korean). Retrieved 24 October 2024.
  10. ^ 박성민 (6 October 2022). "한덕철광산업, 암흑물질 추출 지하연구소 1단계 완성". 페로타임즈 (FerroTimes) (in Korean). Retrieved 24 October 2024.
  11. ^ "Korea's deepest underground lap completed to explore mysteries of universe". Pulse. Maekyung Media Group. 6 October 2022. Retrieved 24 October 2024.
  12. ^ 김혜준 (6 October 2022). "SM한덕철광산업, 1km 깊이 정선 '예미랩 지하실험실' 완공". SME Daily (중소기업신문) (in Korean). Retrieved 24 October 2024.
  13. ^ "New Deep Underground Facility (Yemilab) in Jeongseon, Korea" (PDF). 3rd TAU collaboration meeting. Institute for Basic Science. 28 March 2019. Retrieved 15 October 2024.
  14. ^ "강원도 정선 1,000m 지하에서 우주의 비밀을 밝혀낸다". Institute for Basic Science (in Korean). 9 October 2022. Retrieved 24 October 2024.
  15. ^ 권예슬 (31 October 2024). ""과학도 '아직 모른다'는 것이 있다는 점에서 영화적 상상력 얻었죠": 지하 1,000m 지하실험실 배경 영화 「모든 점」 작가와 협업 과학자를 만나다". The Science Times (in Korean). Retrieved 11 November 2024.
  16. ^ "Every Single Dot". Busan International Film Festival. Retrieved 11 November 2024.



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