تقرير
First Use of High Charge States for Mass Measurements of Short-lived Nuclides in a Penning Trap
العنوان: | First Use of High Charge States for Mass Measurements of Short-lived Nuclides in a Penning Trap |
---|---|
المؤلفون: | Ettenauer, S., Simon, M. C., Gallant, A. T., Brunner, T., Chowdhury, U., Simon, V. V., Brodeur, M., Chaudhuri, A., Mané, E., Andreoiu, C., Audi, G., López-Urrutia, J. R. Crespo, Delheij, P., Gwinner, G., Lapierre, A., Lunney, D., Pearson, M. R., Ringle, R., Ullrich, J., Dilling, J. |
سنة النشر: | 2011 |
المجموعة: | Nuclear Experiment Physics (Other) |
مصطلحات موضوعية: | Nuclear Experiment, Physics - Atomic Physics |
الوصف: | Penning trap mass measurements of short-lived nuclides have been performed for the first time with highly-charged ions (HCI), using the TITAN facility at TRIUMF. Compared to singly-charged ions, this provides an improvement in experimental precision that scales with the charge state q. Neutron-deficient Rb-isotopes have been charge bred in an electron beam ion trap to q = 8 - 12+ prior to injection into the Penning trap. In combination with the Ramsey excitation scheme, this unique setup creating low energy, highly-charged ions at a radioactive beam facility opens the door to unrivalled precision with gains of 1-2 orders of magnitude. The method is particularly suited for short-lived nuclides such as the superallowed {\beta} emitter 74Rb (T1/2 = 65 ms). The determination of its atomic mass and an improved QEC-value are presented. Comment: 5 pages, 3 figures |
نوع الوثيقة: | Working Paper |
DOI: | 10.1103/PhysRevLett.107.272501 |
URL الوصول: | http://arxiv.org/abs/1109.3494 |
رقم الأكسشن: | edsarx.1109.3494 |
قاعدة البيانات: | arXiv |
DOI: | 10.1103/PhysRevLett.107.272501 |
---|