EAST

同

elevated arm stress test, Roos' test

WordNet

1. to, toward, or in the east; "we travelled east for several miles"; "located east of Rome"
2. the cardinal compass point that is at 90 degrees (同)due east, eastward, E
3. the direction corresponding to the eastward cardinal compass point
4. a location in the eastern part of a country, region, or city
5. situated in or facing or moving toward the east

PrepTutorEJDIC

1. 《the~》『東』;(…の)東方,(…の)東部《+『of』+『名』》 / 《the East》『東洋』(the Orient) / 《the East》《米》東部地方 / 『東の』,東方の,東部の;東からの / 『東に』,東方へ

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2023/02/17 16:00:48」(JST)

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EAST

Experimental Advanced Superconducting Tokamak
EAST vacuum vessel
Device type	Tokamak
Location	Hefei, China
Affiliation	Hefei Institutes of Physical Science, Chinese Academy of Sciences
Technical specifications
Major radius	1.85 m (6 ft 1 in)
Minor radius	0.45 m (1 ft 6 in)
Magnetic field	3.5 T (35,000 G)
Heating power	7.5 MW
Discharge duration	102 s
Plasma current	1.0 MA
Plasma temperature	100×106 K
History
Year(s) of operation	2006–present
Preceded by	HT-6M

Experimental Advanced Superconducting Tokamak
Chinese	先进超导托卡马克实验装置
Hanyu Pinyin	xiānjìn chāodǎo tuōkǎmǎkè shíyàn zhuāngzhì
Literal meaning	Advanced Superconducting Tokamak Experimental device
Transcriptions Standard Mandarin Hanyu Pinyin xiānjìn chāodǎo tuōkǎmǎkè shíyàn zhuāngzhì

Technical sketch of EAST

Plasma in EAST

The Experimental Advanced Superconducting Tokamak (EAST), internal designation HT-7U (Hefei Tokamak 7 Upgrade), is an experimental superconducting tokamak magnetic fusion energy reactor in Hefei, China. The Hefei Institutes of Physical Science is conducting the experiment for the Chinese Academy of Sciences. It has operated since 2006.

It is the first tokamak to employ superconducting toroidal and poloidal magnets. It aims for plasma pulses of up to 1,000 seconds.

Since China is a member of the international ITER project, it is hoped that EAST will provide new impetus for its further development.

History

EAST followed China's first superconducting tokamak device, dubbed HT-7, built by the Institute of Plasma Physics in partnership with Russia in the early 1990s.

The project was proposed in 1996 and approved in 1998. According to a 2003 schedule, buildings and site facilities were to be constructed by 2003. Tokamak assembly was to take place from 2003 through 2005.

Construction was completed in March 2006 and on September 28, 2006, "first plasma" was achieved.

According to official reports, the project's budget is CNY ¥300 million (approximately US$37 million), some 1/15 to 1/20 the cost of a comparable reactor built in other countries.

Phase I

On September 28, 2006, first plasma was achieved—the first test lasted nearly three seconds, and generated an electric current of 200 kiloamperes.

By Jan 2007 "the reactor created a plasma lasting nearly five seconds and generating an electric current of 500 kilo amperes".

On November 7, 2010, EAST achieved its first H-mode plasma by LHW alone.

In May 2011, EAST became the first tokamak to successfully sustain H-Mode plasma for over 30 seconds at ~50 million Kelvin.

Phase II

On November 29, 2011, The ribbon-cutting ceremony for EAST auxiliary heating system project was held, signifying EAST's entering of “Phase-II”.

On May 19, 2014, after nearly 20-month-long upgrading break since September 2012, EAST was ready for the first round of experiments in 2014.

By May 2015, EAST was reporting 1 MA currents, and H-mode for 6.4 seconds.

In February, 2016, a plasma pulse was maintained for a record 102 seconds at ~50 million °C. Plasma current of 400kA and a density of about 2.4 x 10¹⁹/m³ with slowly increasing temperature.

On November 2, 2016, EAST became the first tokamak to successfully sustain H-Mode plasma for over a minute at ~50 million °C.

On July 3, 2017, EAST became the first tokamak to successfully sustain H-Mode plasma for over 100 seconds at ~50 million °C.

On November 12, 2018, EAST reached a milestone of 100 million °C electron temperature.

In May, 2021, EAST reached a milestone of 120 million °C electron temperature for 101 seconds.

On December 30, 2021, a long-pulse high-parameter plasma operation of 1056 seconds was realized, which once again created a new world record for the operation of the Tokamak experimental device.

Physics objectives

China is a member of the ITER consortium, and EAST is a testbed for ITER technologies.

EAST was designed to test:

• Superconducting Niobium-titanium poloidal field magnets, making it the first tokamak with superconducting toroidal and poloidal magnets
• Non-inductive current drive
• Pulses of up to 102 seconds with 0.5 MA plasma current
• Schemes for controlling plasma instabilities through real-time diagnostics
• Materials for diverters and plasma facing components
• Operation with β_N = 2 and confinement factor H₈₉ > 2

Tokamak parameters

Tokamak parameters

Toroidal field, Bt	3.5 T
Plasma current, IP	1.0 MA
Major radius, R0	1.85 m
Minor radius, a	0.45 m
Aspect ratio, R/a	4.11
Elongation, κ	1.6–2
Triangularity, δ	0.6–0.8
Ion cyclotron resonance heating (ICRH)	3 MW
Lower hybrid current drive (LHCD)	4 MW
Electron cyclotron resonance heating (ECRH)	None currently (0.5 MW planned)
Neutral beam injection (NBI)	None currently (planned)
Pulse length	1–1000 s
Configuration	Double-null divertor Pump limiter Single null divertor

See also

• ASDEX Upgrade
• China Fusion Engineering Test Reactor (CFETR)
• HL-2M
• List of fusion experiments
• ITER
• Joint European Torus
• JT-60
• KSTAR

External links

• Official website - Official website of EAST Fusion Facility - Chinese Academy of Science
• People's Daily article
• Xinhua article Mar 1 2006 - Note that EAST is not the "world's first experimental nuclear fusion device".
• Xinhua article Mar 24, 2006 Nuke fusion reactor completes test

UpToDate Contents

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English Journal

• Time Course of MERS-CoV Infection and Immunity in Dromedary Camels.

• Meyer B, Juhasz J, Barua R, Das Gupta A, Hakimuddin F, Corman VM, Müller MA, Wernery U, Drosten C, Nagy P.
• Emerging infectious diseases.Emerg Infect Dis.2016 Dec 15;22(12). doi: 10.3201/eid2212.160382. [Epub ahead of print]
• Knowledge about immunity to Middle East respiratory syndrome coronavirus (MERS-CoV) in dromedary camels is essential for infection control and vaccination. A longitudinal study of 11 dam-calf pairs showed that calves lose maternal MERS-CoV antibodies 5-6 months postparturition and are left susceptib
• PMID 27224315

• Effectiveness of partially hydrolyzed rice glutelin as a food emulsifier: Comparison to whey protein.

• Xu X1, Zhong J2, Chen J3, Liu C4, Luo L5, Luo S6, Wu L7, McClements DJ8.
• Food chemistry.Food Chem.2016 Dec 15;213:700-7. doi: 10.1016/j.foodchem.2016.07.047. Epub 2016 Jul 6.
• The emulsifying properties of partially hydrolyzed rice glutelin (H-RG, 2% degree of hydrolysis) were compared to those of whey isolate protein (WPI), a commonly used protein-based emulsifier. The surface load of WPI (1% emulsifier, d32=167.5nm) was 2.8 times lower than that of H-RG (3% emulsifier,
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• Interactions between major chlorogenic acid isomers and chemical changes in coffee brew that affect antioxidant activities.

• Liang N1, Xue W2, Kennepohl P2, Kitts DD3.
• Food chemistry.Food Chem.2016 Dec 15;213:251-9. doi: 10.1016/j.foodchem.2016.06.041. Epub 2016 Jun 16.
• Coffee bean source and roasting conditions significantly (p<0.05) affected the content of chlorogenic acid (CGA) isomers, several indices of browning and subsequent antioxidant values. Principal component analysis was used to interpret the correlations between physiochemical and antioxidant param
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Japanese Journal

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• Intern. Med., 2019
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• Successful Cord Blood Transplantation in a Werner Syndrome Patient with High-risk Myelodysplastic Syndrome

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• Applied Energy 228, 2321-2332, 2018-10-15
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Related Pictures

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★リンクテーブル★

リンク元	「ルース試験」
拡張検索	「EAST1」
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