Lawrence Berkeley National Laboratory
Measurement of 139La(p,x) cross sections from 35–60 MeV by stacked-target activation
- Author(s): Morrell, JT
- Voyles, AS
- Basunia, MS
- Batchelder, JC
- Matthews, EF
- Bernstein, LA
- et al.
Published Web Locationhttps://doi.org/10.1140/epja/s10050-019-00010-0
© 2020, Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature. A stacked-target of natural lanthanum foils (99.9119% 139La) was irradiated using a 60 MeV proton beam at the LBNL 88-Inch Cyclotron. 139La(p,x) cross sections are reported between 35–60 MeV for nine product radionuclides. The primary motivation for this measurement was the need to quantify the production of 134Ce. As a positron-emitting analogue of the promising medical radionuclide 225Ac, 134Ce is desirable for in vivo applications of bio-distribution assays for this emerging radio-pharmaceutical. The results of this measurement were compared to the nuclear model codes TALYS, EMPIRE and ALICE (using default parameters), which showed significant deviation from the measured values.