Measurement of 139-La(n,gamma) Cross Section at n_TOF
Document typeConference report
PublisherAmerican Institute of Physics (AIP)
Rights accessRestricted access - publisher's policy
The capture cross section of the 139La has been measured relative to 197Au standard at n_TOF. We provide here a short description of the experimental apparatus and of the data analysis procedures. The extracted resonance parameters allow to calculate the fundamental nuclear quantities such as average spacing <D>l=0 = 268 ± 22 eV, <D>l=1 < 250 eV neutron strength functions S0 = (0.79 ± 0.03)×10-4, and S1 = (0.73 ± 0.05)×10-4 and the Maxwellian-averaged capture cross section (MACS). The MACS is particularly useful for the determination of the abundance synthesized by the main component of the s process .
CitationCalviño, F. [et al.]. Measurement of 139-La(n,gamma) Cross Section at n_TOF. A: Frontiers in Nuclear Structure, Astrophysics, and Reactions. "FINUSTAR 2005: International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions". Isle of Kos: American Institute of Physics (AIP), 2005, p. 551-553.