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《Nuclear Fusion and Plasma Physics》 1985-01
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QIAN Jiapu TAO Shihui SHAO Xianhua(Southwestern Institute of Physics, Leshan, Sichuan, China)  
A hot surface ionization detector is described in this paper. The hot surfaces in the detector are made of tungsten filaments and the ion collector is a tungsten wire grid around the hot filaments. To prevent alkali metal vapor from condensing on the wires, the tungsten wires are heated to 400℃. The insulator among 4 electrodes of the detector is inserted in a enclosed metal envelope. By means of a labyrinth packing, electric conducting layer can not form on the insulator. The detector has been applied to quick measurement of the density of an alkali metal vapor jet. Some experimental results of the detector for a supersonic lithium vapor jet are given.
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1 QIAN Jiapu TAO Shihui CHEN Kaiqin;A LARGE APERTURE SUPERSONIC LITHIUM VAPOR JET NEUTRALIZER[J];Nuclear Fusion and Plasma Physics;1981-03
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