| 摘要 |
FIELD: physics.SUBSTANCE: method of detecting ionising radiation is based on the ionisation effect, which involves use of at least one ionisation cell to the electrodes of which an electric potential difference is applied; ionising radiation is detected through continuous measurement of electric current flowing through the ionisation cell, wherein the volume V of the ionisation cell is selected according to defined relationships which link the average free path before ionisation of current carriers knocked out by a quantum of penetrating radiation; the average number of current carriers knocked out by a quantum of penetrating radiation; the equilibrium concentration of current carriers in the semiconductor at given measurement temperature; a coefficient equal to the ratio of the amplitude of the detected, depending on the equipment used and mathematical signal processing techniques, to noise level, wherein for subsequent processing, independent amplification of a signal from each ionisation cell is performed using field effect.EFFECT: high detector sensitivity.2 dwg |
