Radiation analysis apparatus

摘要

A radiation analysis apparatus is provided with circuitry for correcting errors in a pulse-height distribution due to differential non-linearities of the analog-to-digital converter that is employed for digitising the detector signals. Correction is performed by multiplying counts by correction factors so as to form corrected counts constituting a corrected pulse-height spectrum. Correction factors are obtained by supplying to the analog-to-digital converter a known control-measurement detector signal having a known corresponding ideal pulse-height spectrum. Comparison of the pulse-height spectrum actually formed upon supplying the control-measurement detector signal with the ideal pulse-height spectrum provides correction factors that are stored in a memory. Generator signals obtained during radiation analysis lead to counts to be corrected which are supplied to a multiplier together with respective correction factors such that corrected counts are formed constituting a corrected pulse-height distribution being supplied to a display device.