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1. IntroductionThe pellet injection has been proposed as a fueling means of stable fusion reactor for the future,with which the plasma density distribution in discharge can be controlled, the confinement behaviorimproved and the density limit raised. In addition,various complex phenomena produced by the pelletplajsma interactions can make the pellet injection tobe used as a plajsma diagnosis, such ajs CCD photographing, being able to provide ifs an effective wayto understand the plasma physic… 相似文献
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一、引言 涡轮分子泵是一种较先进的泵,它具有工作范围宽,运行方便,在10~(-3)托以上工作时抽速稳定,能获得准无油的超高真空等优点。尤其是对于要求预先获得高或超高真空然后在10~(-3)~10~(-4)托的连续气流下工作的场合特别适用,因此它被广泛地运用于受控核聚变装置的油气系统,国外几乎所有的聚变装置如PLT,JFT-2,D-Ⅲ,TFTR,ALCATOR等均采用涡轮分子泵为主体泵的抽气系统,中国环流器一号装置HL-1也是如此,本装置以F-450分子泵为主抽气泵,已获得 1× 10~(-8)托的干净的本底实空,而后在10~(-4)托的气压下长期工作要求数百小时… 相似文献
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氢及其同位素固态小球的高速注入——弹丸加料是近十几年来受控核聚变研究中发展起来的一项新技术。它是将氢及其同位素(氘、氚)冷却成毫米量级固态小球,然后以高速注入到核聚变等离子体中实现燃料在等离子体芯部 相似文献
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The preliminary design of a multi-barrels pellet injector with cycle refrigerator as an advanced plasma-fuelling tool for HL-2A tokamak has been proposed. The design aims at precise temperature control, easy operation with high reliability and high flexibility. GM-cycle refrigerator and pipe-gun structure have been employed to produce 25 pellets in 25 gun barrels simultaneously and the design aims. have been accomplished. Prime design principle, engineering parameters, structure and layout of the cryostat components as well as calculation of heat load for the cryostat are presented. 相似文献
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