[Equipment for measuring the optical density of wide-format x-ray films]. / Ustroistvo dlia izmereniia opticheskoi plotnosti shirokoformatnykh rentgenogramm.

ABSTRACT

For qualitative estimation of the dynamics of medical treatment in the patients with pulmonary diseases a device has been produced based on measuring the optical density of X-ray films. This device comprises the optical part of the microphotometer MF-2, a modified microscope stand, with its moving mechanism, electronic circuit with a logarithmic amplifier, control circuit and a double-coordinate-recorder.