RAON is a South Koreanparticle physics laboratory within the Rare Isotope Science Project (RISP) that is being constructed in the outskirts ofDaejeon neighboringSejong, South Korea by theInstitute for Basic Science (IBS). It was expected to be finished by 2021[2][3][4] before getting pushed back to 2025.[5]
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 theKorean word라온 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 andniobium written on the stomach.[9][10]
RAON is aheavy ionparticle 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, includingCERN,Fermilab,TRIUMF, andRiken.[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 inKAIST's Munji Campus, and the Accelerator and ICT Building inKorea University Sejong Campus.[16]
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
The group aims to develop an ultra-sensitive device for measuring the physical properties ofmuons, 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
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
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
^"한국형 중이온가속기 새이름 공모전".Internet Archive WayBack Machine (in Korean). International Science and Business Belt. 13 September 2013. Archived fromthe original on 15 September 2013. Retrieved26 July 2018.
^"Rare Isotope Science Project: What is RAON?".Institute for Basic Science. Retrieved16 July 2018.RAON, the name of the heavy-ion accelerator, is a Korean word meaning "Happy" or "Joyful.
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