Radioactivity Quench Curve Spreadsheet Application Using Microsoft Excel. You will become acquainted with general spreadsheet menus, formula entries, calculations, copy functions and data regression.
Radioactivity is caused by nuclear emission of high energy particles.
These are deliberately added to radioactive samples to make possible the measurement of low levels of radioactivity. In order to determine the true rate of disintegration, one must account for the quenching and the efficiency of energy conversion for electrons at each energy level. This is done by performing a calibration standard. The sample is serially diluted with an experimental solution and scintillation liquid is added. Also, the CPM for each sample are measured, which when divided by the known DPM, yields the efficiency of conversion of DPM to CPM for that particular quenching factor.