Properties of the lighest known caesium isotopes 114118Cs
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abstract
Neutron-deficient caesium isotopes with mass numbers from 114 to 118 have been studied at the ISOLDE facility. Half-lives have been determined from counting of -particles, -delayed protons, and -rays. A short-lived isomer (T 1 2 = 0.7 sec) in 116Cs has been observed and the new delayed-particle precursors 116Cs (protons and -particles), 115Cs (protons), and 114Cs (protons and -particles) have been identified. Coincidences between delayed particles and -rays have been measured for 118Cs (p and ) and 116Cs (p). A search for the possible proton-radioactive isotope 113Cs has been performed and an upper limit for its production yield is given. 1978.