層状発光の曲がり現象

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  • Curved Phenomenon of Luminous Layers
  • ソウジョウ ハッコウ ノ マガリ ゲンショウ

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We have studied luminous layers phenomena in Ne by experiments and a Monte Carlo simulation (MCS) method. In our previous paper, we mentioned that the calculated spatial distributions of excitation using MCS are in agreement with the observed spatial emission distributions of visible light. Therefore, it was found that the luminous layers were able to explain by means of the collisional excitation of electrons.<br>This paper describes the curved phenomenon of luminous layers. We performed the precise MCS not only in Ne but also in He, Ar, Kr and Xe under the same gas pressure and gap length condition. The discharge space was divided into 240 sections in the field direction where the length was 1.2cm and 6 sections in the radial direction where the radius of electrode was 0.6cm. Our research paid attention to the spatial distribution of excitation which produces the luminous layers. It was found that these layers are curved like the observed luminous layers. We also investigated the relationship between the spatial distribution of excitation and the collision rates which includes elastic collision νm and excitations νe. We found that the position of drifting electrons are far from the center of the axis, spatial distribution of νm and νe along the electric field direction shifts to the anode. This shows that the net electron energy loss by collision with atoms becomes smaller as the electron lies near the center of the electrodes.<br>We concluded that, if the position of the electron shifts perpendicularly to the direction of the electric field, the elartrnn will suffer the enemy loss as the result of the increase of elastic collision.

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