Overview of EXL-50 research progress
XuanLong-50 (EXL-50) is the first medium-size spherical torus (ST) in China, with the toroidal field of 0.5 T at a major radius of 50 cm. Central Solenoid (CS)—free and non-inductive current drive via electron cyclotron resonance heating (ECRH) were the main physics research issue for EXL-50. Plasma...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | Nuclear Fusion |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1741-4326/adf239 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849390293877522432 |
|---|---|
| author | Yuejiang Shi Yumin Wang Bing Liu Xianming Song Shaodong Song Xinchen Jiang Dong Guo Di Luo Xiang Gu Tiantian Sun Xianli Huang Zhi Li Lili Dong Xueyun Wang Gang Yin Mingyuan Wang Wenjun Liu Hanyue Zhao Huasheng Xie Liu Yong Dongkai Qi Bo Xing Jiangbo Ding Chao Wu Lei Li Haijun Zhang Yuanming Yang Xin Zhao Enwu Yang Wenwu Luo Peihai Zhou Lei Han Qing Zhou Hanqing Wang Jiaqi Dong Baoshan Yuan Y.-K. Martin Peng Minsheng Liu the EXL-50 team |
| author_facet | Yuejiang Shi Yumin Wang Bing Liu Xianming Song Shaodong Song Xinchen Jiang Dong Guo Di Luo Xiang Gu Tiantian Sun Xianli Huang Zhi Li Lili Dong Xueyun Wang Gang Yin Mingyuan Wang Wenjun Liu Hanyue Zhao Huasheng Xie Liu Yong Dongkai Qi Bo Xing Jiangbo Ding Chao Wu Lei Li Haijun Zhang Yuanming Yang Xin Zhao Enwu Yang Wenwu Luo Peihai Zhou Lei Han Qing Zhou Hanqing Wang Jiaqi Dong Baoshan Yuan Y.-K. Martin Peng Minsheng Liu the EXL-50 team |
| author_sort | Yuejiang Shi |
| collection | DOAJ |
| description | XuanLong-50 (EXL-50) is the first medium-size spherical torus (ST) in China, with the toroidal field of 0.5 T at a major radius of 50 cm. Central Solenoid (CS)—free and non-inductive current drive via electron cyclotron resonance heating (ECRH) were the main physics research issue for EXL-50. Plasma currents from 50 kA to 180 kA were routinely achieved in EXL-50, with the current flattops sustained for up to or beyond 2 s. The current drive effectiveness on EXL-50 reached as high as 1 A W ^−1 for low-density discharges using 28 GHz ECRH alone for heating power less than 200 kW. The plasma current reached I p > 80 kA for high-density (>5 × 10 ^18 m ^−2 ) discharges with 150 kW 28 GHz ECRH. Higher performance discharge ( I p of about 120 kA and core density of about 1 × 10 ^19 m ^−3 ) was achieved with 150 kW 50 GHz ECRH. The plasma current in EXL-50 was mainly carried by the energetic electrons. The physics mechanisms for the solenoid-free ECRH current drive and the energetic electrons have also been investigated. Preliminary experimental results indicate that 100 kW of lower hybrid current drive waves can drive 20 kA of plasma current. Several boron injection systems were installed and tested in EXL-50, including B _2 H _6 gas puffing, boron powder injection, boron pellet injection. The upgrade of EXL-50, the EXL-50U, has begun experimental research to address these issues of ST proton-boron plasmas over a much wider parameter space. |
| format | Article |
| id | doaj-art-01ca31d4e9344efe8a80edb96194a381 |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-01ca31d4e9344efe8a80edb96194a3812025-08-20T03:41:43ZengIOP PublishingNuclear Fusion0029-55152025-01-0165909200410.1088/1741-4326/adf239Overview of EXL-50 research progressYuejiang Shi0https://orcid.org/0000-0002-9572-3310Yumin Wang1https://orcid.org/0000-0001-5398-884XBing Liu2Xianming Song3Shaodong Song4Xinchen Jiang5Dong Guo6https://orcid.org/0000-0001-6562-8841Di Luo7Xiang Gu8Tiantian Sun9Xianli Huang10Zhi Li11Lili Dong12Xueyun Wang13Gang Yin14Mingyuan Wang15Wenjun Liu16Hanyue Zhao17Huasheng Xie18https://orcid.org/0000-0001-9204-135XLiu Yong19Dongkai Qi20Bo Xing21Jiangbo Ding22Chao Wu23Lei Li24Haijun Zhang25Yuanming Yang26Xin Zhao27Enwu Yang28Wenwu Luo29Peihai Zhou30Lei Han31Qing Zhou32Hanqing Wang33Jiaqi Dong34Baoshan Yuan35Y.-K. Martin Peng36Minsheng Liu37the EXL-50 team38Hebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaHebei Key Laboratory of Compact Fusion , ENN Science and Technology Development Co., Ltd, Langfang 065001, ChinaXuanLong-50 (EXL-50) is the first medium-size spherical torus (ST) in China, with the toroidal field of 0.5 T at a major radius of 50 cm. Central Solenoid (CS)—free and non-inductive current drive via electron cyclotron resonance heating (ECRH) were the main physics research issue for EXL-50. Plasma currents from 50 kA to 180 kA were routinely achieved in EXL-50, with the current flattops sustained for up to or beyond 2 s. The current drive effectiveness on EXL-50 reached as high as 1 A W ^−1 for low-density discharges using 28 GHz ECRH alone for heating power less than 200 kW. The plasma current reached I p > 80 kA for high-density (>5 × 10 ^18 m ^−2 ) discharges with 150 kW 28 GHz ECRH. Higher performance discharge ( I p of about 120 kA and core density of about 1 × 10 ^19 m ^−3 ) was achieved with 150 kW 50 GHz ECRH. The plasma current in EXL-50 was mainly carried by the energetic electrons. The physics mechanisms for the solenoid-free ECRH current drive and the energetic electrons have also been investigated. Preliminary experimental results indicate that 100 kW of lower hybrid current drive waves can drive 20 kA of plasma current. Several boron injection systems were installed and tested in EXL-50, including B _2 H _6 gas puffing, boron powder injection, boron pellet injection. The upgrade of EXL-50, the EXL-50U, has begun experimental research to address these issues of ST proton-boron plasmas over a much wider parameter space.https://doi.org/10.1088/1741-4326/adf239EXL-50non-inductive current drivespherical torus |
| spellingShingle | Yuejiang Shi Yumin Wang Bing Liu Xianming Song Shaodong Song Xinchen Jiang Dong Guo Di Luo Xiang Gu Tiantian Sun Xianli Huang Zhi Li Lili Dong Xueyun Wang Gang Yin Mingyuan Wang Wenjun Liu Hanyue Zhao Huasheng Xie Liu Yong Dongkai Qi Bo Xing Jiangbo Ding Chao Wu Lei Li Haijun Zhang Yuanming Yang Xin Zhao Enwu Yang Wenwu Luo Peihai Zhou Lei Han Qing Zhou Hanqing Wang Jiaqi Dong Baoshan Yuan Y.-K. Martin Peng Minsheng Liu the EXL-50 team Overview of EXL-50 research progress Nuclear Fusion EXL-50 non-inductive current drive spherical torus |
| title | Overview of EXL-50 research progress |
| title_full | Overview of EXL-50 research progress |
| title_fullStr | Overview of EXL-50 research progress |
| title_full_unstemmed | Overview of EXL-50 research progress |
| title_short | Overview of EXL-50 research progress |
| title_sort | overview of exl 50 research progress |
| topic | EXL-50 non-inductive current drive spherical torus |
| url | https://doi.org/10.1088/1741-4326/adf239 |
| work_keys_str_mv | AT yuejiangshi overviewofexl50researchprogress AT yuminwang overviewofexl50researchprogress AT bingliu overviewofexl50researchprogress AT xianmingsong overviewofexl50researchprogress AT shaodongsong overviewofexl50researchprogress AT xinchenjiang overviewofexl50researchprogress AT dongguo overviewofexl50researchprogress AT diluo overviewofexl50researchprogress AT xianggu overviewofexl50researchprogress AT tiantiansun overviewofexl50researchprogress AT xianlihuang overviewofexl50researchprogress AT zhili overviewofexl50researchprogress AT lilidong overviewofexl50researchprogress AT xueyunwang overviewofexl50researchprogress AT gangyin overviewofexl50researchprogress AT mingyuanwang overviewofexl50researchprogress AT wenjunliu overviewofexl50researchprogress AT hanyuezhao overviewofexl50researchprogress AT huashengxie overviewofexl50researchprogress AT liuyong overviewofexl50researchprogress AT dongkaiqi overviewofexl50researchprogress AT boxing overviewofexl50researchprogress AT jiangboding overviewofexl50researchprogress AT chaowu overviewofexl50researchprogress AT leili overviewofexl50researchprogress AT haijunzhang overviewofexl50researchprogress AT yuanmingyang overviewofexl50researchprogress AT xinzhao overviewofexl50researchprogress AT enwuyang overviewofexl50researchprogress AT wenwuluo overviewofexl50researchprogress AT peihaizhou overviewofexl50researchprogress AT leihan overviewofexl50researchprogress AT qingzhou overviewofexl50researchprogress AT hanqingwang overviewofexl50researchprogress AT jiaqidong overviewofexl50researchprogress AT baoshanyuan overviewofexl50researchprogress AT ykmartinpeng overviewofexl50researchprogress AT minshengliu overviewofexl50researchprogress AT theexl50team overviewofexl50researchprogress |