An apparatus for use in the comparison of the irradiation currents arising from materials located in different sites. (Machine-translation by Google Translate, not legally binding)

摘要

An apparatus for use in the comparison of irradiation intensities from materials located at different sites as a result of their irradiation by a beam of radiation, said apparatus comprising a source of radiation, a means that determines the locations for the material situation irradiate, means for producing signals indicative of the differences in the radiation intensities coming from the different places, including a detector for such radiation and a rotary descrestador comprising two bodies of revolution in different places along its geometric axis. rotation and having a phase difference of 180º, said switch being located between said source of radiation and said places, so that in operation the increases and decreases in the proportion of the section of the beam in which the rays are intercepted, that move towards the sample material, by one of the bodies of revolution , are accompanied respectively by decreases and corresponding increases in the proportion of the section of the beam of rays, in which the rays, which move towards the pattern of the reference material, are intercepted by the other of the bodies of revolution. (Machine-translation by Google Translate, not legally binding)