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Experiences from the operation tests with the ITER model pump

机译：ITER型号泵的运行测试经验

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Within the development work for ITER (International Thermonuclear Experimental Reactor), the test bed TIMO (Test facility for the ITER model pump) was built at Forschungszentrum Karlsruhe. The aim of this test facility is to check the suitability of the 1:2 ITER torus model cryopump under all aspects of operation. This model pump is the result of extensive preliminary examinations focusing on different aspects of cryosorption vacuum pump operation in the ITER fuel cycle. To pump out the required plasma exhaust gas flow of 120 (Pa·m~3)/s, which essentially consists of all mix hydrogen isotopes as well as helium and various impurities, the pump surfaces cooled to 5 K were coated with activated charcoal embedded in an inorganic cement. Apart from all the gases which are condensed at the operation temperature of 5 K, helium as well as hydrogen isotopes are fixed on the activated charcoal-coated pump area of 4 m~2 by means of sorption.
机译：在ITER（国际热核实验反应堆）的开发工作中，在卡尔斯鲁厄（Forschungszentrum Karlsruhe）建造了试验台TIMO（用于ITER模型泵的测试设施）。该测试设备的目的是在所有操作方面检查1：2 ITER环型低温泵的适用性。该型号泵是对ITER燃料循环中低温吸附真空泵运行的不同方面进行广泛初步检查的结果。为了抽出所需的120（Pa·m〜3）/ s的等离子废气流，该流量基本上由所有混合氢同位素以及氦气和各种杂质组成，冷却至5 K的泵表面涂有活性炭在无机水泥中。除了在5 K的工作温度下冷凝的所有气体外，氦气和氢同位素还通过吸附固定在4 m〜2的活性炭涂层泵面积上。

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