抄録
In an argon-discharge tube which is of the same structure as the fluorescent lamp but contains no mercury drop and has no fluorescent film, impurity gases are produced in the course of lighting. These gases were confirmed to be CO and CO2 by the spectroscopic and mass-spectroscopic methods. They are considered to be liberated from the cathode material.
It is assumed from the above that the impurity gases which are apt to appear in the fluorescent lamp during lighting, are CO and CO2 and that these gases are decomposed to carbon and oxygen and deposited on the wall, affecting the lumen maintenance of the fluorescent lamp.
