RAON

RAON is a South Korean particle physics laboratory within the Rare Isotope Science Project (RISP) that is being constructed in the outskirts of Daejeon neighboring Sejong, South Korea by the Institute for Basic Science (IBS). It was expected to be finished by 2021[2][3][4] before getting pushed back to 2025.[5]

Rare Isotope Science Project: RAON
중이온가속기건설구축사업단: 라온
TypeGovernmental organisation
PurposeBasic science
HeadquartersDaejeon, South Korea
Location
Coordinates36.4785°N 127.3715°E / 36.4785; 127.3715
Director
Kwon Myeun
Budget
1.4523 trillion KRW [1]
Websiterisp.ibs.re.kr/html/risp_en/
RAON
Hangul
Revised RomanizationRaon
McCune–ReischauerRaon
Rare Isotope Science Project (RISP)
Hangul
Hanja
Revised RomanizationJungion Gasokgi Geonseolguchung Saeopdan
McCune–ReischauerChungion Kasokki Kŏnsŏlguch'ung Saŏptan

Name

The name Rare isotope Accelerator complex for ON-line experiment or RAON, was selected through a contest open to the public in 2012.[6] RAON comes from the Korean word 라온 meaning "happy" or "joyful".[7] Among 639 entries, the winning name was actually Raonhaje (라온하제) meaning "happy tomorrow" but was shortened for easier pronunciation.[8] RAON is also the name of their chemical element mascot with atomic number 41 and niobium written on the stomach.[9][10]

Type

RAON is a heavy ion particle accelerator that will include both isotope separation on-line (ISOL) and in-flight fragmentation (IF) methods, and aims to be the first to use both.[11][12] The superconducting linear accelerator will have a maximum beam power of 400 kW, and projectile fragmentation will be powered by a 200 MeV/u uranium beam in the IF system. The ISOL system will have a H- cyclotron of 70 kW.[13]

Due to the complexity of the project, RAON's researchers are working in collaboration with a number of other accelerator research groups, including CERN, Fermilab, TRIUMF, and Riken.[14]

The cost is estimated at 1.4523 trillion KRW (roughly US$1.4 billion) in which 460.2 billion KRW is for device construction, 635 billion KRW for facility construction, and 357.1 billion KRW for land purchase. The size of the site is 652,066 m2 with a total floor area of 130,144 m2.[1] In additional to the primary accelerator site under construction in Shindong (신동), RISP has the ISOL Off-line Test Facility in Yuseong-gu,[15] Superconducting Radio Frequency test facility in KAIST's Munji Campus, and the Accelerator and ICT Building in Korea University Sejong Campus.[16]

Research
Image of the site taken from a drone in August 2018.
The entrance of RAON complex in May 2021.

Nuclear science

Research areas in the field of nuclear science include the study of the origin of elements and evolution of stars, nuclear force and structure, nuclear reactions, and nuclear science theory.

  • Korea Broad acceptance Recoil spectrometer and Apparatus (KOBRA): Study the production of nuclear structures and rare isotopes through the collisions of nuclei of rare isotopes and stable atoms
  • Large Acceptance Multi-Purpose Spectrometer (LAMPS): Observe the high density states of substances resulting from collisions of neutron-rich rare isotopes
  • Nuclear Data Production System (NDPS): Produce precise atomic nuclear reaction data on rare isotope nuclear materials and high-speed neutrons

Physical science

The group aims to develop an ultra-sensitive device for measuring the physical properties of muons, and study the properties of new materials, including semiconductors, nano-magnetic materials, high-temperature superconductors, and topological insulators.

  • Muon Spin Relaxation (μSR): Use muons to research superconductivity, nano-magnetism, and topological insulation through measuring local electromagnetic properties

Atomic and molecular science

In these fields, they aim to precisely measure rare isotope mass and develop atomic manipulation technology, develop micro-measurement technology for atomic structures, and find the precise measurements of basic physical constants.

  • Mass Measurement System (MMS): Categorize rare isotopes and find new atoms through precise mass measurements
  • Collinear Laser Spectroscopy (CLS): Categorize rare isotopes and know their nuclear characteristics through the changes in their shapes and atomic energy levels

Biomedical science

Research the application of rare isotopes in cancer treatment.[11][17][18]

  • Beam Irradiation System (BIS): Develop biomedical techniques for cancer treatment by exposing biological tissue samples to heavy-ion or rare isotope beams to selectively destroy cells and modify DNA

Timeline
  • 2009: The National Science and Technology Council confirms the International Science and Business Belt plans, which include RISP.
  • 2010: The heavy-ion accelerator pre-planning study was completed in June.[19]
  • 2011: A conceptual design study was completed in February. In December, the Rare Isotope Science Project officially launched.[20][19]
  • 2012: The basic plan to establish RAON was completed
  • 2013: In June the technical design report for RAON was completed[19] and the basic plan to establish RAON was modified.
  • 2014: The basic plan was confirmed in May[19] and the facility construction plan commenced in December.
  • 2015: The basic plan was modified in April[19] and the facility construction plan was completed in December.
  • 2018: RAON installation begins[1]
  • 2020: Completion of building construction[1]
  • 2025: Completion of RAON construction[5]

See also
Wikimedia Commons has media related to RAON.

References
  1. Beyond Basic Science: Korean heavy-ion accelerator, RAON A major big-science facility of the International Science and Business Belt (PDF). Brochure (English ed.). Rare Isotope Science Project. 2016. pp. 22–23. Retrieved 8 August 2018.{{cite book}}: CS1 maint: others (link)
  2. "RISP". risp.ibs.re.kr. Retrieved 9 June 2018.
  3. www.etnews.com (14 October 2012). "한국형 중이온가속기 이름 '라온'". 대한민국 IT포털의 중심! 이티뉴스 (in Korean). Retrieved 9 June 2018.
  4. "Intro. 노벨상 향한 대장정 스타트, 중이온가속기 라온 | d라이브러리" (in Korean). Retrieved 9 June 2018.
  5. 고광본 (2 February 2021). "MB 대선공약·최대 기초과학 프로젝트 '중이온가속기' 끝없는 표류". Sedaily (in Korean). Retrieved 3 February 2021.
  6. "한국형 중이온가속기 새이름 공모전". Internet Archive WayBack Machine (in Korean). International Science and Business Belt. 13 September 2013. Archived from the original on 15 September 2013. Retrieved 26 July 2018.
  7. "Rare Isotope Science Project: What is RAON?". Institute for Basic Science. Retrieved 16 July 2018. RAON, the name of the heavy-ion accelerator, is a Korean word meaning "Happy" or "Joyful.
  8. "RAON, the name of the heavy-ion accelerator, is a native Korean word meaning "Happy" or "Joyful"". Internet Archive WayBack Machine (in Korean). International Science and Business Belt. Archived from the original on 26 July 2018. While preserving its intention, the name selected for the Grand Prize was modified slightly for easy pronunciation and international use, thus giving rise to RAON, the new name for the Korean heavy-ion accelerator.
  9. "중이온가속기건설구축사업단". ko-kr.facebook.com (in Korean). Retrieved 4 August 2018.
  10. "과학벨트 핵심연구시설 '라온 중이온가속기' 캐릭터 선보여" (in Korean). Retrieved 4 August 2018.
  11. 권, 예슬; 최, 영준 (2018). 이, 현경 (ed.). "과학동아" (in Korean). Vol. 390. 과학동아. pp. 94–121. ISSN 1228-3401. {{cite magazine}}: Cite magazine requires |magazine= (help)
  12. "Beyond Basic Science". RISP. Institute for Basic Science. 2016. Archived from the original (PDF) on 16 July 2018. Retrieved 16 July 2018.
  13. Kim, J.; Kim, D.; Kim, M.; Song, J.; Yun, C.; Kim, S.; Wan, W. (18–21 June 2012). Design study of in-flight fragment separator for rare isotope science project in Korea (PDF). 12th Heavy Ion Accelerator Technology Conference (HIAT2012). Chicago, Illinois USA. pp. 20–22. Retrieved 7 August 2018.
  14. "MOU체결 현황". RAON (in Korean). Rare Isotope Science Project. Archived from the original on 6 June 2020. Retrieved 8 August 2018.
  15. Lee, Jin-ho; Kang, Byoung-hwi; Woo, Hyung-joo; Hironobu, Ishiyama; Seo, Chang-seog; Park, Sung-jong; Kim, Jong-won; Jeong, Sun-chan; Yuon, Min-young (4–6 November 2015). "Poster Presentations (Utilization) PU-16 Development and Operation Status for ISOL Off-line Test Facility of RISP" (PDF). 19th International Conference on Accelerators and Beam Utilizations ICABU2015 November 4–6, 2015, Gyeongju HICO, Korea. 19th International Conference on Accelerators and Beam Utilizations (ICABU2015). Gyeongju, Korea. p. xv. Retrieved 12 September 2018.
  16. "The RISP of IBS-Korea University to cooperate on accelerator research and expert training". Rare isotope Accelerator complex for ON-line experiments. Institute for Basic Science. 23 April 2013. Archived from the original on 21 January 2019. Retrieved 21 January 2019.
  17. Beyond Basic Science: Korean heavy-ion accelerator, RAON A major big-science facility of the International Science and Business Belt (PDF). Brochure (English ed.). Rare Isotope Science Project. 2016. pp. 18–19. Retrieved 8 August 2018.{{cite book}}: CS1 maint: others (link)
  18. Ahn, Jung Keun; An, Dong Hyun; Baek, Kwang-yun; Baek, Seung Won; Bahng, Jung-bae; Bak, Sang-in; Chang, Dae-sik; Cheon, Byunggu; Cheoun, Myung-ki; Cho, Dong-hyun; Cho, Hee-suk; Choi, Bong Hyuk; Choi, Chang-il; Choi, Chul Jin; Choi, Eun-mi; Choi, Han-woo; Choi, Hyo-jung; Choi, Kwang-yang; Choi, Min Sik; Choi, Seonho (August 2012). "1-7". Baseline Design Summary. Rare Isotope Science Project. pp. 16–18. Retrieved 8 August 2018.
  19. Lee, Jaehyung (October 2017). "중이온가속기 장치구축사업" (PDF) (in Korean): 2. Retrieved 2 October 2018. {{cite journal}}: Cite journal requires |journal= (help)
  20. Kim, Jong Won. Status of the Rare Isotope Science Project in Korea (PDF). LINAC 12. Tel-Aviv, Israel. pp. 455–457. ISBN 978-3-95450-122-9. Retrieved 2 October 2018. The project is funded and officially started in the end of 2011.
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