EAST装置锂化壁下低杂波等离子体温度行为研究

徐经翠; 王福地; 吕波; 沈永才; 李颖颖; 符佳; 石跃江; Sanggon Lee; M. Bitter; K. Hill

doi:10.7498/aps.61.145203

摘要

在EAST全超导托卡马克归一化半径r/a 0.6区域内部, 在高功率低混杂波电流驱动辅助加热下,以及第一壁锂化处理条件下, 在低混杂波注入中期观测到电子温度剖面和离子温度剖面变平的现象. 利用X射线弯曲晶体光谱仪诊断系统,并结合其他相关诊断系统研究了在第一壁锂化条件下, 以及EAST低杂波放电位形下,电子温度剖面和离子温度的剖面行为. 研究结果表明:电子温度剖面和离子温度剖面变平的现象是由于第一壁锂化处理技术对从等离子体边界流向第一壁的粒子流产生了影响,使得边界粒子再循环模式受到抑制, 这种低再循环模式的存在引起了温度剖面的变化.同时观察到离子温度和电子温度彼此接近的现象, 这是由于随着等离子体密度的增加,电子与离子之间的碰撞行为加剧所产生的结果.

关键词:

温度剖面 /
低再循环 /
锂化壁

Abstract

It is observed that the profiles of ion and electron temperatures become broader within a region of r/a 0.6 on experimental advanced superconducting tokamak with high-power lower hybrid wave heating and lithium wall coating. It is found that the above phenomena are related to the low recycling at the first wall as a result of the lithium wall coating. The lithium wall coating affects the plasma particles coming from the plasma boundary to the first wall, thereby causing a reduction in recycling. The low recycling causes the temperature profiles to change. It is also found that the electron and ion temperatures approach to each other as a result of high collision rate between electrons and ions when the plasma density increases.

Keywords:

作者及机构信息

1.
中国科学院等离子体物理研究所, 合肥 230031;

2.
National Fusion Research Institute, 52 Eoeun-Dong, Yusung-Gu, Daejeon 305-333, Korea;

3.
Princeton Plasma Physics Laboratory, P. O. Box 451, Princeton, NJ 08543-0451, USA

基金项目: 国家自然科学基金(批准号: 10975155, 11175208, 10990212) 和科技部国际热核实验堆专项(批准号: 2012GB101000, 2011GB101000, 2011GB107000)资助的课题.

Authors and contacts

1.
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;

2.
National Fusion Research Institute, 52 Eoeun-Dong, Yusung-Gu, Daejeon 305-333, Korea;

3.
Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, NJ 08543-0451, USA

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 10975155, 11175208, 10990212), and National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2012GB101000, 2011GB101000, 2011GB107000).

参考文献

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[2]	Hu L Q, Wan B N, Hu C D, Liu B H, Wu Z W, Huang J, Rowan W L, Huang H, Gentle K, HT-7 Teams 2004 Rev. Sci. Instrum. 75 3496
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[5]	Ono M, Bell M G, Bell R E, Kaita R, Kugel H W, LeBlanc B P, Canik J M, Diem S, Gerhardt S P, Hosea J, Kaye S, Mansfield D, Maingi R, Menard J, Paul S F, Raman R, Sabbagh S A, Skinner C H, Soukhanovskii V, Taylor G, NSTX Research Team 2010 Fusion Eng. Des. 85 882
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[15]	Troyon F, Gruber R, Saurenmann H, Semenzato S, Succi S 1984 Plasma Phys. Contr. F 26 209
[16]	Shimomura Y, Aymar R, Chuyanov V A, Huguet M, Matsumoto H, Mizoguchi T, Murakami Y, Polevoi A R, Shimada M, ITER Joint Cent Team, ITER Home Teams 2001 Nucl. Fusion 41 309
[17]	Porcelli F, Boucher D, Rosenbluth M N 1996 Plasma Phys. Contr. F 38 2163
[18]	Greenwald M, Terry J L, Wolfe S M, Ejima S, Bell M G, Kaye S M, Neilson G H 1988 Nucl. Fusion 28 2199
[19]	Xu G S, Wan B N, Li J G, Gong X Z, Hu J S, Shan J F, Li H, Mansfield D K, Humphreys D A, Naulin V, EAST Teams, International Collaborators 2011 Nucl. Fusion 51 072001
[20]	Wan B N, EAST Teams, HT-7 Teams, International Collaborators 2009 Nucl. Fusion 49 104011
[21]	Huang Q C, Luo J R, Wang H Z, Li C 2006 Acta Phys. Sin. 55 281 (in Chinese) [黄勤超, 罗家融, 王华忠, 李翀 2006 物理学报 55 281]
[22]	Shi Y J, Wang F D, Wan B N, Bitter M, Lee S, Bak J, Hill K, Fu J, Li Y Y, Zhang W, Ti A, Ling B L 2010 Plasma Phys. Contr. F 52 085014
[23]	Bitter M, Hill K W, Roquemore A L, Beiersdorfer P, Kahn S M, Elliott S R, Fraenkel B 1999 Rev. Sci. Instrum. 70 292
[24]	Bitter M, Hill K W, Stratton B, Roquemore A L, Mastrovito D, Lee S G, Bak J G, Moon M K, Nam U W, Smith G, Rice J E, Beiersdorfer P, Fraenkel B S 2004 Rev. Sci. Instrum. 75 3660
[25]	Lee S G, Bak J G, Bitter M, Hill K, Nam U W, Kim Y J, Moon M K 2004 Rev. Sci. Instrum. 75 3693
[26]	Lee S G, Bak J G, Nam U W, Moon M K, Cheon J K 2007 Rev. Sci. Instrum. 78 063504
[27]	Huang J, Wan B N, Li J G, Gong X Z, Zhang X D, Wu Z W, Zhou Q, HT-7 Teams 2006 Nucl. Fusion 46 262

施引文献

[1]	Zhou Q, Wan B N, Wu Z W, Huang J 2005 Chin. Phys. 14 2539
[2]	Hu L Q, Wan B N, Hu C D, Liu B H, Wu Z W, Huang J, Rowan W L, Huang H, Gentle K, HT-7 Teams 2004 Rev. Sci. Instrum. 75 3496
[3]	Ding B J, Shan J F, Liu F K, Fang Y D, Wei W, Wu Z W, Chen Z Y, Xu H D, Wang M, Jiang M, Zhang G R, Huang F, Zhao Y P, Kuang G L 2006 Chin. Phys. 15 2989
[4]	Shi Y J, Wan B N, Chen Z Y, Hu L Q, Lin S Y, Ruan H L, Qian J P, Zhen X J, Ding B J, Kuang G L, Li J G, HT-7 Teams 2005 Chin. Phys. 14 1193
[5]	Ono M, Bell M G, Bell R E, Kaita R, Kugel H W, LeBlanc B P, Canik J M, Diem S, Gerhardt S P, Hosea J, Kaye S, Mansfield D, Maingi R, Menard J, Paul S F, Raman R, Sabbagh S A, Skinner C H, Soukhanovskii V, Taylor G, NSTX Research Team 2010 Fusion Eng. Des. 85 882
[6]	Maingi R, Kaye S M, Bell R E, Biewer T M, Chang C S, Gates D A, Gerhardt S P, Hosea J, LeBlanc B P, Meyer H, Mueller D, Park G Y, Raman R, Sabbagh S A, Stevenson T A, Wilson J R 2010 Nucl. Fusion 50 064010
[7]	Maingi R, Osborne T H, LeBlanc B P, Bell R E, Manickam J, Snyder P B, Menard J E, Mansfield D K, Kugel H W, Kaita R, Gerhardt S P, Sabbagh S A, Kelly F A, NSTX Research Team 2009 Phys. Rev. Lett. 103 075001
[8]	Maingi R, Bell R E, Canik J M, Gerhardt S P, Kaye S M, LeBlanc B P, Osborne T H, Bell M G, Fredrickson E D, Lee K C, Menard J E, Park J K, Sabbagh S A, NSTX Research Team 2010 Phys. Rev. Lett. 105 135004
[9]	Zuo G Z, Hu J S, Li J G, Luo N C, Hu L Q, Fu J, Chen K Y, Ti A, Zhang L L 2010 Plasma Sci. Technol. 12 646
[10]	Hu J S, Wang X M, Li J H, Wu J H, Chen Y, Wang H Y, Yang D W, Luo N C, Li S F, Li G Y, Wang L, Yu Y W, Dou R C, Hu Q S, Bao L M, Zhao Y P, Li J G, EAST Vacuum Wall Conditioning Group 2009 Fusion Eng. Des. 84 2167
[11]	Mansfield D K, Roquemore A L, Schneider H, Timberlake J, Kugel H, Bell M G, NSTX Research Team 2010 Fusion Eng. Des. 85 890
[12]	Zakharov L E, Gorelenkov N N, White R B, Krasheninnikov S I, Pereverzev G V 2004 Fusion Eng. Des. 72 149
[13]	Dimits A M, Bateman G, Beer M A, Cohen B I, Dorland W, Hammett G W, Kim C, Kinsey J E, Kotschenreuther M, Kritz A H, Lao L L, Mandrekas J, Nevins W M, Parker S E, Redd A J, Shumaker D E, Sydora R, Weiland J 2000 Phys. Plasmas 7 969
[14]	Wakatani M, Mukhovatov V S, Burrell K H, Connor J W, Cordey J G, Esipchuk Y V, Garbet X, Lebedev S V, Mori M, Toi K, Wolfe S M, Boucher D, Chudnovskii A N, DeBoo J C, Houlberg W A, Kaye S M, Miura Y, Ogawa Y, Osipenko M V, Ryter F, Takizuka T, Bateman G, Bracco G, Campbell D J, Carlstrom T N, Dnestrovski Y N, Fujita T, Fukuyama A, Gohil P, Greenwald M J, Hoang T, Hogeweij G M D, Hubbard A E, Kardaun O J W F, Kinsey J E, Konings J A, Marinucci M, Martin Y R, Mikkelsen D R, Ongena J, Osborne T H, Perkins F W, Polevoi A R, Rosenbluth M N, Schissel D P, Snipes J A, Stubberfield P M, Synakowski E J, Taroni A, Thomsen K, Turner M F, Uckan N A, Valovic M, Vlad G, Waltz R E, Weiland J, Zohm H, Post D E, Uckan N A, Azumi M, Ivanov N, Sauthoff N R, Wakatani M, Nevins W M, Shimada M, van Dam J 1999 Nucl. Fusion 39 2175
[15]	Troyon F, Gruber R, Saurenmann H, Semenzato S, Succi S 1984 Plasma Phys. Contr. F 26 209
[16]	Shimomura Y, Aymar R, Chuyanov V A, Huguet M, Matsumoto H, Mizoguchi T, Murakami Y, Polevoi A R, Shimada M, ITER Joint Cent Team, ITER Home Teams 2001 Nucl. Fusion 41 309
[17]	Porcelli F, Boucher D, Rosenbluth M N 1996 Plasma Phys. Contr. F 38 2163
[18]	Greenwald M, Terry J L, Wolfe S M, Ejima S, Bell M G, Kaye S M, Neilson G H 1988 Nucl. Fusion 28 2199
[19]	Xu G S, Wan B N, Li J G, Gong X Z, Hu J S, Shan J F, Li H, Mansfield D K, Humphreys D A, Naulin V, EAST Teams, International Collaborators 2011 Nucl. Fusion 51 072001
[20]	Wan B N, EAST Teams, HT-7 Teams, International Collaborators 2009 Nucl. Fusion 49 104011
[21]	Huang Q C, Luo J R, Wang H Z, Li C 2006 Acta Phys. Sin. 55 281 (in Chinese) [黄勤超, 罗家融, 王华忠, 李翀 2006 物理学报 55 281]
[22]	Shi Y J, Wang F D, Wan B N, Bitter M, Lee S, Bak J, Hill K, Fu J, Li Y Y, Zhang W, Ti A, Ling B L 2010 Plasma Phys. Contr. F 52 085014
[23]	Bitter M, Hill K W, Roquemore A L, Beiersdorfer P, Kahn S M, Elliott S R, Fraenkel B 1999 Rev. Sci. Instrum. 70 292
[24]	Bitter M, Hill K W, Stratton B, Roquemore A L, Mastrovito D, Lee S G, Bak J G, Moon M K, Nam U W, Smith G, Rice J E, Beiersdorfer P, Fraenkel B S 2004 Rev. Sci. Instrum. 75 3660
[25]	Lee S G, Bak J G, Bitter M, Hill K, Nam U W, Kim Y J, Moon M K 2004 Rev. Sci. Instrum. 75 3693
[26]	Lee S G, Bak J G, Nam U W, Moon M K, Cheon J K 2007 Rev. Sci. Instrum. 78 063504
[27]	Huang J, Wan B N, Li J G, Gong X Z, Zhang X D, Wu Z W, Zhou Q, HT-7 Teams 2006 Nucl. Fusion 46 262

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