Apparatus for the quantitative analysis of substances with the aid of roentgen or cathode rays

摘要

252,207. Dessauer, F., (Assignee of Metallbank und Metallurgische Ges., Akt.- Ges.). May 15, 1925, [Convention date]. R÷ntgen-ray apparatus.-In an apparratus for the quantitative analysis of substances by R÷ntgen rays or cathode rays, by applying. to the tube successively variable voltages and ascertaining the resulting ionization in the gas chamber 3 containing the substance 4, for example an adjustable rheostat, for altering the voltage applied to the tube 1 is coupled with the ionization registration device, consisting in the apparatus shown of a reflector 5 and recording drum 6.