| 摘要 |
PURPOSE:To check slippage of electrons from their orbits while suppressing electrification of the glass bulb inside by generating discharge plasma around electron guns in a hydrogen gas atmosphere. CONSTITUTION:Electron guns are mounted inside a glass bulb of a cathode-ray tube while being evacuated followed by sealing hydrogen gas for performing discharge. In the discharge plasma in the hydrogen gas hydrogen molecules are excited or ionized while colliding with the inside of the glass bulb near the electron guns. Thereby, a reducing reaction to lead oxide, which is one of main components of the glass bulb, is caused for depositing lead on the glass bulb inside while making said inside to be low-resisting. As a result, the glass bulb inside becomes hard to be electrified thus being able to obtain the cathode-ray tube habing little slippage of the electron beams from their orbits. |
