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- the working principle of liquid helium cryocondensation pump is strong absorptive force between 4.2k cryogenic surface and gas molecules . the pump has great advantage in large instant pumping speed under high gas load, large working pressure range, high & neat ultimate vacuum
利用4.2k低溫面對(duì)氣體的物理吸附機(jī)制實(shí)現(xiàn)高氣載下瞬時(shí)大抽速的液氦低溫冷凝泵，具有工作壓強(qiáng)范圍寬、能獲得清潔真空環(huán)境的特點(diǎn)。 - liquid helium cryocondensation pump has great advantages in large pumping speed, working pressure range and high ultimate pressure, etc . it's more excellent than any other vacuum pump . it can meet the vacuum requirement of nbi and can improve the transportation efficiency . the development of neutral beam injection ( nbi ) system in the world, the structure of nbi system used on the ht-7 device of asipp was introduced in the thesis
液氦低溫冷凝泵是利用低溫面對(duì)氣體有強(qiáng)吸附能力的原理，實(shí)現(xiàn)抽氣的真空獲得設(shè)備，它具有抽速大、工作壓強(qiáng)范圍寬、極限真空度高等一系列優(yōu)點(diǎn)，是普通真空設(shè)備無法比擬的，作為中性束注入系統(tǒng)的主抽泵，它能滿足中性束注入系統(tǒng)對(duì)大抽速的要求，提高中性束的傳輸效率。