Studies of 213g, mRa and 214g, mRa by α and γ decay

The decay of ^{213, 214}Ra was studied by α-γ and γ-γ coincidence measurements. The nuclei were produced in the reactions ¹⁷⁰Er(⁴⁸Ca, xn)^218-x Ra and ¹⁷⁰Er(⁵⁰Ti, 3n)²¹⁷Th and subsequent α decay of ²¹⁷Th to ²¹³Ra. Evaporation residues recoiling out of the target were separated in-flight by the velocity filter SHIP and implanted into a position-sensitive 16-strip PIPS detector in order to study their subsequent decays. Associated γ-rays were detected by a four-fold Ge-Clover detector. In the present work we extracted new and improved data for ^{213, 214}Ra including isomeric transitions. The results are discussed and compared with previously published data.