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Encyclopedia > KSTAR

The KSTAR, or Korean Superconducting Tokamak Advanced Reactor is a magnetic fusion device being built at the Korea Basic Science Institute in Daejon, South Korea. It is intended to study aspects of magnetic fusion energy which will be pertinent to the ITER fusion project as part of that country's contribution to the international ITER effort. The project was approved in 1995 but construction was delayed by the East Asian financial crisis which weakened the South Korean economy considerably; however the project is now back on track and first plasma is scheduled for mid- to late- 2006. A magnet levitating above a high-temperature superconductor (with boiling liquid nitrogen underneath), demonstrating the Meissner effect. ... A split image of the largest tokamak in the world, the JET, showing hot plasma in the right image during a shot. ... Fusion typically refers to the merging of two or more entities into a single one: In physics and technology nuclear fusion is the combination of two atomic nuclei into a single nucleus, usually the isotopes of hydrogen, Deuterium and Tritium. ... Daejeon Metropolitan City is a metropolitan city in the centre of South Korea, and the capital of South Chungcheong Province. ... Magnetic Fusion Energy (MFE) is a sustained nuclear fusion reaction in a plasma that is contained by magnetic fields. ... Cutaway of the ITER Tokamak Torus in casing. ... The East Asian financial crisis was a financial crisis that started in July 1997 in Thailand and affected currencies, stock markets, and other asset prices in several Asian countries, many considered East Asian Tigers. ... Look up plasma in Wiktionary, the free dictionary. ...


KSTAR will be one of the first research tokamaks in the world to feature fully superconducting magnets, which again will be of great relevance to ITER as this will also use SC magnets. The KSTAR magnet system consists of 16 niobium-tin direct current toroidal field magnets, 10 niobium-tin alternating current poloidal field magnets and 4 niobium-titanium alternating current poloidal field magnets. It is planned that the reactor will study plasma pulses of up to 20 seconds duration until 2011, when it will be upgraded to study pulses of up to 300 seconds duration. The reactor vessel will have a major radius of 1.8m, a minor radius of 0.5m, a maximum toroidal field strength of 3.5 tesla, and a maximum plasma current of 2 mega-amps. As with other tokamaks, heating and current drive will be initiated using neutral beam injection, ion cyclotron resonance heating (ICRH), RF heating and electron cyclotron resonance heating (ECRH). Inital heating power will be 8 megawatts from neutral beam injection upgradeable to 24MW, 6MW from ICRH upgradeable to 12MW, and at present undetermined heating power from ECRH and RF heating. The experiment will use both hydrogen and deuterium fuels but not the deuterium-tritium mix which will be studied in ITER. Cutaway of the ITER Tokamak Torus in casing. ... General Name, Symbol, Number niobium, Nb, 41 Chemical series transition metals Group, Period, Block 5, 5, d Appearance gray metallic Atomic mass 92. ... General Name, Symbol, Number tin, Sn, 50 Chemical series poor metals Group, Period, Block 14, 5, p Appearance silvery lustrous gray Atomic mass 118. ... Direct current (DC or continuous current) is the continuous flow of electricity through a conductor such as a wire from high to low potential. ... A torus. ... General Name, Symbol, Number niobium, Nb, 41 Chemical series transition metals Group, Period, Block 5, 5, d Appearance gray metallic Atomic mass 92. ... General Name, Symbol, Number tin, Sn, 50 Chemical series poor metals Group, Period, Block 14, 5, p Appearance silvery lustrous gray Atomic mass 118. ... City lights viewed in a motion blurred exposure. ... Niobium-titanium (Nb3Ti) is an alloy of niobium and titanium, used industrially as a type II superconductor wire for superconducting magnets. ... City lights viewed in a motion blurred exposure. ... The tesla (symbol T) is the SI derived unit of magnetic flux density (or magnetic induction). ... AMP is a three-letter abbreviation with multiple meanings, as described below: AMP, the capitalised letter version of Amp, In biology, the nucleotide adenosine monophosphate As a flavour enhancer, the nucleotide adenosine monophosphate AngryMutantPenguin, a famous fan of The Elder Scrolls In computing, the MPEG-2, Layer 3 (MP3) audio... An ion is an atom, group of atoms, or subatomic particle that normally is electrically neutral and achieve their status as an ion by loss (and addition) of an electron. ... A pair of Dee electrodes with loops of coolant pipes on their surface at the Lawrence Hall of Science. ... The Tacoma Narrows Bridge (shown twisting) in Washington collapsed spectacularly, under moderate wind, in part because of resonance. ... Rough plot of Earths atmospheric transmittance (or opacity) to various wavelengths of electromagnetic radiation, including radio waves. ... Properties The electron is a lightweight fundamental subatomic particle that carries a negative electric charge. ... A pair of Dee electrodes with loops of coolant pipes on their surface at the Lawrence Hall of Science. ... The Tacoma Narrows Bridge (shown twisting) in Washington collapsed spectacularly, under moderate wind, in part because of resonance. ... The megawatt (symbol: MW) is a unit for measuring power corresponding to one million (106) watts. ... General Name, Symbol, Number hydrogen, H, 1 Chemical series nonmetals Group, Period, Block 1, 1, s Appearance colorless Atomic mass 1. ... Deuterium, also called heavy hydrogen, is a stable isotope of hydrogen with a natural abundance in the oceans of one atom in 6400 of hydrogen (see VSMOW; the abundance changes slightly from one kind of natural water to another). ... Deuterium, also called heavy hydrogen, is a stable isotope of hydrogen with a natural abundance in the oceans of one atom in 6400 of hydrogen (see VSMOW; the abundance changes slightly from one kind of natural water to another). ... Tritium (symbol T or 3H) is a radioactive isotope of hydrogen. ... Cutaway of the ITER Tokamak Torus in casing. ...


External links

  • KSTAR homepage
  • US KSTAR homepage
  • KSTAR Project Status PDF (caution: 1.6MB large file)

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