METHOD OF MEASURING RADIOACTIVITY OF TRITIUM TARGET IN SEALED NEUTRON TUBE Russian patent published in 2017 - IPC G01T1/16 

FIELD: physics.

SUBSTANCE: invention relates to the methods of measuring the beta-radioactivity of a tritium target in the sealed (sealed-off) neutron tubes. The essence of the invention lies in the fact that the unknown radioactivity of the tritium target A_unknown in a neutron tube is determined using the obtained beta-current value, according to the formula A_unknown=K_M⋅Iβ, where K_M - the calibration factor, for the determination of which n neutron tubes of this type are taken with the known radioactivity of tritium targets A_Mi, for each tube, the values of the beta-current Iβ_i are recorded and on the basis of the values obtained, K_M is determined by the formula , where , - the average values of the quantities Iβ_I and A_Mi, - the average value of the product of A_Mi and Iβ_i, - the average value of the square Iβ_i.

EFFECT: determining the radioactivity of the tritium target inside the sealed neutron tube without opening the tube body and dismantling the target.

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