Mass measurements of neutron-rich isotopes near N=20 by in-trap decay with the ISOLTRAP spectrometer
Tarih
2019Yazar
Herfurth, F.
Ascher, P.
Althubiti, N.
Atanasov, D.
Blaum, K.
Grevy, S.
Kreim, S.
Lunney, D.
Manea, V
Neidherr, D.
Rosenbusch, M.
Schweikhard, L.
Welker, A.
Wienholtz, F.
Wolf, R. N.
Zuber, K.
Cakirli, R. B.
Üst veri
Tüm öğe kaydını gösterÖzet
The masses of Si-34, Mg-33,Mg-34, and Al-34 have been measured with the ISOLTRAP Penning-trap spectrometer at ISOLDE/CERN. The results are in agreement with previous mass measurements and uncertainties have been decreased. The mass of Al-34 was determined in two configurations, one following direct production by the ISOLDE facility, favoring the 4(-) state, expected to be the ground state, second by in-trap decay of Mg-34, followed by recoil-ion trapping, favoring the production of the isomeric 1(+) state. A position-sensitive detector was used to clean the ToF-ICR resonance. In addition, the mass of the refractory doubly magic Si-34 nucleus was directly measured, using the in-trap decay of Mg-34, following two sequential recoil-ion captures. The approach, challenges and conclusions are discussed.
Koleksiyonlar
- Makale [92796]