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Viewing cable 07SEOUL3033, KOREA UNVEILS ADVANCED TOKAMAK FUSION TEST DEVICE BUILT

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Reference ID Created Released Classification Origin
07SEOUL3033 2007-10-07 05:50 2011-08-25 00:00 UNCLASSIFIED Embassy Seoul
VZCZCXYZ0000
RR RUEHWEB

DE RUEHUL #3033/01 2800550
ZNR UUUUU ZZH
R 070550Z OCT 07
FM AMEMBASSY SEOUL
TO RUEHC/SECSTATE WASHDC 6871
INFO RHEHAAA/WHITE HOUSE WASHINGTON DC
RUCPDOC/DEPT OF COMMERCE WASHDC 1712
RHEBAAA/DEPT OF ENERGY WASHDC
RUEHBJ/AMEMBASSY BEIJING 3221
RUEHFR/AMEMBASSY PARIS 1562
RUEHKO/AMEMBASSY TOKYO 3361
RUEHNE/AMEMBASSY NEW DELHI 0617
RUEHMO/AMEMBASSY MOSCOW 8296
RUEHBS/USEU BRUSSELS
RUEHUNV/UNVIE VIENNA
UNCLAS SEOUL 003033 
 
SIPDIS 
 
SIPDIS 
 
DEPT FOR STAS, OES/SAT, OES/STC, AND ISN/NESS 
DEPT ALSO FOR EAP/K 
WHITE HOUSE FOR OSTP 
USDOC FOR 4440/IEP/EAP/OPB/WGOLIKE 
USDOC ALSO FOR ITA/TA 
USDOC ALSO NIST FOR SCARPENTER 
USDOE FOR INTERNATIONAL - R. PRICE 
USDOE ALSO FOR OFFICE OF SCIENCE - E. OKTAY 
DEPT PASS TO NRC FOR INTL PROGRAMS 
USMISSION VIENNA FOR IAEA DEL 
 
E.O. 12958: N/A 
TAGS: TRGY ENRG KSCA KNNP KS
SUBJECT: KOREA UNVEILS ADVANCED TOKAMAK FUSION TEST DEVICE BUILT 
WITH U.S. COLLABORATION 
 
 
SUMMARY 
------- 
 
1.  On September 14, President Roh unveiled Korea's cutting-edge 
nuclear fusion plasma chamber, the Korea Superconducting Tokamak 
Advanced Research (KSTAR) device, at the National Fusion Research 
Center outside Daejeon.  Built at a cost of some USD 329 million, 
KSTAR is one of the world's most advanced Tokamaks, using 
superconducting coils and advanced techniques to heat and shape 
plasma.  KSTAR was built using domestic technology, with technical 
assistance from a number of fusion research labs in the United 
States and other countries.  Following testing of its subsystems, 
KSTAR is expected to produce its first plasma by June 2008, and to 
achieve full-scale operations several years later.  KSTAR will play 
an important role in international fusion research, both before and 
after the start-up of the larger-scale International Thermonuclear 
Experimental Reactor (ITER) in Cadarache, France, in 2016.  Comment: 
KSTAR demonstrates both how far Korean science has progressed and 
the extent to which U.S.-Korean scientific collaboration continues 
to play a role in that progress.  End summary. 
 
KSTAR - CENTERPIECE OF KOREAN FUSION RESEARCH 
--------------------------------------------- 
 
2.  The KSTAR Tokamak is the centerpiece of Korea's fusion research 
program.  (Tokamak is a Russian acronym for Toroidal -- or 
doughnut-shaped -- Chamber in Magnetic Coils.  It is a device using 
powerful magnets to confine a plasma -- ionized gases -- to permit 
controlled fusion reactions.)  The Korean government has spent USD 
329 million since 1995 to construct KSTAR and related devices at the 
NFRC, located in Daedeok Innopolis, outside of Daejeon (150 
kilometers south of Seoul).  A ceremony was held on September 14 to 
mark the completion of construction. 
 
3.  Lee Gyeong-su, Director of Fusion Research at Korea's National 
Fusion Research Center (NFRC), told ESTH that NFRC is still testing 
individual KSTAR systems, and that full-scale operation is planned 
to begin by June, 2008.  Once KSTAR is operational, Korea plans to 
spend some USD 37 million annually over eighteen years on fusion 
research.  The goal is to maintain dense, superheated plasmas for 
periods of at least 300 seconds, in order to gather information on 
heating, diagnostic and controlling techniques.  This information 
will feed into the multinational ITER project, in which Korea is a 
founding partner. 
 
4.  Looking further into the future, Korea's "road map" for fusion 
energy development aims to demonstrate the feasibility of fusion 
power generation by 2030; complete the engineering design of a 
fusion reactor by 2035; and begin commercial production of 
electricity using fusion by 2040. 
 
5.  As testament to the importance that the Korean government gives 
to the prospect of fusion energy, President Roh Moo-hyun attended 
the September 14 event, and spoke not once but three times.  He 
lauded the scientists and domestic industries responsible for 
bringing the project to completion, and expressed his hope that 
KSTAR would play a crucial role in allowing Korea to achieve energy 
self-reliance.  (Comment:  With an election coming up, Roh also used 
the occasion to announce that he would seek legislative approval to 
bring scientists from NFRC and other state-run research institutes 
into the government pension scheme, a proposal that provoked smiles 
of approval among those assembled.  End comment.) 
 
COMPARING KSTAR TO EXISTING TOKAMAKS 
------------------------------------ 
 
6.  NFRC says that KSTAR is the world's first Tokamak to use 
highly-efficient niobium-three-tin (Nb3Sn) coils to generate 
magnetic fields.  The principal parameters of the KSTAR Tokamak are: 
major radius 1.8 meters, minor radius 0.5 meters, toroidal field 3.5 
Telsa, plasma current 2.0 MA, plasma temperature range 100-300 
 
million degrees Celsius, and magnet weight 270 tons. 
 
7.  George McKee, a University of Wisconsin fusion scientist who 
provided technical assistance for KSTAR and who attended the 
September 14 ceremony, provided ESTH with his assessment of how 
KSTAR compares to existing Tokamaks: 
 
"KSTAR is a medium-sized Tokamak experiment. Currently, there are 
two larger experiments in the world (JT-60U in Japan and JET in 
Europe), and two comparably-sized experiments (DIII-D in the United 
States, and ASDEX-U in Germany).  But KSTAR will be unique in that 
it employs fully superconducting magnets and implements the latest 
ideas and designs for obtaining the highest performing plasmas 
(so-called "Advanced Tokamak" plasmas).  The EAST Tokamak that has 
just begun operations in Hefei, China, has roughly similar 
parameters to KSTAR and is also superconducting.  However, KSTAR 
employs advanced plasma heating, shaping and current-drive 
capabilities, is somewhat larger, and has advanced control systems 
and a diagnostics suite. The two experiments should complement each 
other quite well." 
 
PREPARING THE WAY FOR ITER -- AND BEYOND 
---------------------------------------- 
 
8.  McKee went on to opine that "KSTAR is poised to be the most 
fruitful experiment in the world in several years to further advance 
both the performance of fusion plasmas and our scientific 
understanding of basic fusion plasma processes....The KSTAR 
experiment will be a crucial experiment for investigating the 
physics of 'long-pulse, high performance' fusion plasmas.  One of 
the major uncertainties in fusion looking forward to ITER and beyond 
is how the high-temperature plasma and the Tokamak vessel interact 
over long time periods (tens of seconds to minutes) while sustaining 
high-temperature, high-pressure plasmas."  Experience shows that 
high performance can be maintained for relatively short periods -- 
several seconds -- but sustaining for longer pulses requires complex 
feedback control of plasma instabilities and the avoidance of 
deleterious plasma-wall interactions. 
 
9.  McKee concluded that "KSTAR will seek to maintain high 
"normalized" performance that should provide very useful scientific 
information and techniques for developing high performance plasmas 
for ITER as well as for extrapolating beyond ITER to fusion 
reactors.  Thus it will continue to be a very relevant and 
pioneering experiment even during the operation of ITER." 
 
U.S. SCIENTISTS DEEPLY INVOLVED 
------------------------------- 
 
10.  The U.S. Department Energy and numerous U.S. research 
institutions have been deeply involved in the design and 
construction of KSTAR.  With two major fusion centers in the U.S. 
(Princeton Plasma Physics Laboratory in New Jersey and General 
Atomic Company in San Diego) taking the lead, this collaboration has 
included scientists from the University of Wisconsin, the University 
of California at Davis, Columbia University, and Oak Ridge National 
Laboratory, among others.  Dr. McKee provided details: 
 
"The U.S. and Korea are engaged in numerous active collaborations 
centered around the KSTAR experiment in the areas of plasma control, 
radio-frequency and microwave-based heating systems, plasma 
stability, and imaging and profile diagnostics. The U.S. Department 
of Energy is providing funding for numerous design studies and 
control system development for the KSTAR experiment.  These 
collaborations take place with U.S. National Laboratories, 
companies, and universities...." 
 
11.   To further emphasize the long-term nature of the U.S.-Korea 
collaboration, Dr. McKee remarked that the KSTAR experiment design 
is based in part on a Tokamak design (Tokamak Physics Experiment, or 
TPX) that was developed in the U.S., with the leadership of 
 
Princeton Plasma Physics Laboratory.  A DOE official later commented 
to ESTH that the TPX design was not built in the United States due 
to a lack of funding, so it was gratifying to see that the design 
proved so useful in the construction of KSTAR. 
 
COMMENT 
------- 
 
12.  Several speakers at the September 14 ceremony, including ITER 
Secretary General-designate Kaname Ikeda, described KSTAR as 
 
SIPDIS 
allowing Korea to assume a leading role in international fusion 
research.  Hopes are high that KSTAR will contribute to hastening 
the day when electricity generation using fusion is shown to be both 
feasible and cost-effective.  Meanwhile, KSTAR's completion 
testifies both to the advances of Korean science over the past four 
decades, and to the continuing vigor and fruitfulness of U.S.-Korean 
scientific collaboration. 
 
VERSHBOW