Tritium measuring device with radon discrimination function

The invention relates to the technical field of nuclear radiation detection, and provides a tritium measurement device with a radon discrimination function, the tritium measurement device comprises a gas ionization chamber, a current amplification circuit, a pulse amplification circuit and a signal processing circuit, a collector of the gas ionization chamber is connected with the current amplification circuit, a current signal in the gas ionization chamber is measured after being amplified, and the signal processing circuit is connected with the pulse amplification circuit. Measurement signals comprise current signals of tritium beta particles and radon alpha particles, a high-voltage electrode of the gas ionization chamber passes through a blocking capacitor and then is connected with a pulse amplification circuit, and pulse signals generated by the radon alpha particles are measured. The device is convenient to realize in structure, only comprises one detection device, can measure and discriminate the rado