The development of low currents measuring channel necessary to ensure the operation of the experimental complex based on a linear electron accelerator with energy of 30 MeV at IHEPNP NSC KIPT for fundamental and applied research on the interaction of high-energy electrons with amorphous and single-crystal structures is described. The channel makes it possible to measure currents of the order of 0.1 nA and less, with an accuracy better than 0.1 %, and is connected to an upper-level computer via the USB interface.

The possibility of conversion electrons registration in a wide energy range by the detecting system “planar uncooled silicon detector – metal gadolinium converter” is studied. Research samples of detecting modules have been developed and manufactured. The spectrometric system for registration the energy levels of conversion electrons has been modernized. For the first time all levels of conversion electrons were experimentally registered in the energy range 30…200 keV by the detection system “silicon planar detector – metal gadolinium converter”.