6533b837fe1ef96bd12a3007
RESEARCH PRODUCT
Alpha decay of the new isotopes207, 208Ac
K. LobergJuha ÄYstöAri JokinenK. J. EskolaJuha UusitaloWladyslaw Henryk TrzaskaMatti LeinoT. Enqvistsubject
PhysicsNuclear and High Energy PhysicsFusionIsotope010308 nuclear & particles physicsEvaporationAnalytical chemistryAlpha (ethology)7. Clean energy01 natural sciencesIon0103 physical sciencesNuclear fusionAlpha decayAtomic physics010306 general physicsLine (formation)description
Two new neutron-deficient isotopes207,208Ac have been produced in fusion reactions with 5.2–5.6 MeV/nucleon40Ar ions on175Lu and identified on the basis of genetic correlations. The fusion evaporation products were separated on-line using a gas-filled magnetic recoil separator. The alpha energy and half-life of208Ac were determined to be (7572±15) keV and (95 −16 +24 ) ms, respectively. A new alpha line with a half-life of (25 −5 +9 ) ms and an energy of (7758±20) keV is assigned to the decay of an isomeric state in208Ac. Another new activity with a half-life of (22 −9 +40 ) ms and an alpha energy of (7712±25) keV is assigned to207Ac.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-06-01 | Zeitschrift f�r Physik A Hadrons and Nuclei |