Abstract
We have investigated the photoneutron cross section of the isotopes
Nd-148,Nd-150, Sm-154, and Gd-154,Gd-160 close to the neutron emission
threshold in photoactivation experiments at the superconducting
Darmstadt electron linear accelerator S-DALINAC. Naturally composed
targets were activated with a high-intensity bremsstrahlung beam at
various energies and the reaction yields have been determined by
measuring the activity of the produced radioactive isotopes with HPGe
detectors. The results are compared to two different statistical model
calculations.
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