The decay of140Pr to levels in140Ce

The decay of¹⁴⁰Pr was investigated by means of a Ge(Li) spectrometer. Excited states of¹⁴⁰Ce at 1,596.2, 1,903.1, 2,348.9, 2,522.5, 3,016.8 and 3,119.6 keV are fed in the beta decay of¹⁴⁰Pr. Spin and parity assignments for all observed levels have been made from electron capture and positon disintegration considerations and gamma branches. The experimental level scheme of¹⁴⁰Ce is compared with the results of shell model calculations forN=82 nuclei.