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Frontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR, AIP Conference Proceedings Volume 831
Place of Conference
International Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR), Kos, GREECE, SEP 12-17, 2005
Publisher
American institute of physics
Place of Publication
Melville (N.Y.)
Pages
S. 551-553
ISSN/ISBN
0-7354-0323-6
Abstract
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 < 1=0 = 268 +/- 22 eV, > D < 1=1 > 250 eV neutron strength functions S0 = (0.79 +/- 0.03)x 10(4), and S1 = (0.73 +/- 0.05)x10-4 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 [3].