INTERCALIBRATION OF HE-4 AND LI-5 NUCLEAR THERMOMETERS FOR HOT NUCLEI

For hot nuclei with A congruent-to 120, a comparison is made between n uclear temperatures derived from spectral slope parameters for well-ch aracterized equilibrated systems and those derived from state populati on ratios. When suitable account is taken of the deexcitation cascade, the two techniques lead to similar results, confirming the utility of the state ratio method. The general relationship between the measured quantities and the initial temperature for medium to heavy mass hot n uclei is discussed and a calibration of these is presented for measure ments based on He-4 and Li-5 detection.