円筒型電極3極管における電極間の相互輻射について

抄録

Some analyses are carried 'out on the axial temperature distribution of cylindrical electrodes of a triode at high temperature, where the imput energy of electrodes is dissipated chiefly by radiation.
The fundamental equations are deduced under the following assumptions.
1: Heat radiation and reflection at electrode surfaces follows Lambert's law.
2: Heat conduction through electrode walls is negligible.
3: Total emissivity of electrode surfaces is independent of temperature.
4: The electrodes are of the same length.
5: The grid is substituted by equivalent imaginary semi-trans parent cylindrical surface of the same dimension as the grid and its transmission is (1-η_g), where η_g is so-called screen factor of the grid.
The equations are as follows.
_??_ where
_??_: Kernel functions of the co-existive Fredholm's integral equations the second kind with parameter r_f/r_p.
Q(Z): heat energy dissipiated from the surface of the electrode at the ultimate state of mutual radiation heating.
Method of numerical solution of these equations is given, and the results are discussed briefly.