Schematic diagram of the experimental setup.
Schematic of the x-ray detection system.
The spectra of 241Am and 57Co over 1024 channels.
The dependence of the energy on the channel number.
The dependence of channel number on the set voltage of the PMT power (a) and the amplification factor of the main amplifier (b).
The dependence of energy resolution on the set voltage of the PMT power.
Waveform of applied voltage and discharge current.
Energy distribution of x rays when the air gaps are set at 3 cm (a) and 8 cm (b).
Energy classification of the measured x rays.
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