Fisson fragment properties and the problem of the pulse height defect

Abstract

The pulse height defect (phd) has been investigated for three different counting gases commonly used in ionization chambers. The phd introduces an underestimation of the kinetic energy of a charged particle detected with an ionization chamber. Thus, in some cases it is of crucial importance to correct for this effect, e.g. When studying fission fragment properties. A new method was used, applying a waveform digitizer, to study the phd. the fission fragment properties from spontaneous fission of 252cf wheredetermined using different counting gases and different ways of correcting for the phd were evaluated. © 2014 atomic energy society of japan.