E. Surrey, A. Benn, I. Jenkins, M. Porton, W. Timmis
{"title":"注入器设计对DEMO中性束优化的影响","authors":"E. Surrey, A. Benn, I. Jenkins, M. Porton, W. Timmis","doi":"10.1109/SOFE.2011.6052258","DOIUrl":null,"url":null,"abstract":"The requirements for neutral beam injection (NBI) on DEMO are assessed and the consequences for the design of the injectors discussed. Optimization of current drive requires NBI within a 2m × 2m envelope in the plasma poloidal cross section at large tangency radii. This is compatible with beamlines of 20m length and moderate high voltage stand-off distances between injectors. However, q-profile control will necessitate at least three beamlines of different injector types and may not be compatible with shinethrough power limits. Material irradiation studies show that there is no significant design issue for radial distances greater than 3m from the tokamak wall.","PeriodicalId":393592,"journal":{"name":"2011 IEEE/NPSS 24th Symposium on Fusion Engineering","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The influence of injector design on neutral beam optimisation for DEMO\",\"authors\":\"E. Surrey, A. Benn, I. Jenkins, M. Porton, W. Timmis\",\"doi\":\"10.1109/SOFE.2011.6052258\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The requirements for neutral beam injection (NBI) on DEMO are assessed and the consequences for the design of the injectors discussed. Optimization of current drive requires NBI within a 2m × 2m envelope in the plasma poloidal cross section at large tangency radii. This is compatible with beamlines of 20m length and moderate high voltage stand-off distances between injectors. However, q-profile control will necessitate at least three beamlines of different injector types and may not be compatible with shinethrough power limits. Material irradiation studies show that there is no significant design issue for radial distances greater than 3m from the tokamak wall.\",\"PeriodicalId\":393592,\"journal\":{\"name\":\"2011 IEEE/NPSS 24th Symposium on Fusion Engineering\",\"volume\":\"32 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-06-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 IEEE/NPSS 24th Symposium on Fusion Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SOFE.2011.6052258\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE/NPSS 24th Symposium on Fusion Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SOFE.2011.6052258","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The influence of injector design on neutral beam optimisation for DEMO
The requirements for neutral beam injection (NBI) on DEMO are assessed and the consequences for the design of the injectors discussed. Optimization of current drive requires NBI within a 2m × 2m envelope in the plasma poloidal cross section at large tangency radii. This is compatible with beamlines of 20m length and moderate high voltage stand-off distances between injectors. However, q-profile control will necessitate at least three beamlines of different injector types and may not be compatible with shinethrough power limits. Material irradiation studies show that there is no significant design issue for radial distances greater than 3m from the tokamak wall.
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