Abstract
The sensitivity of coupled neutron-photon transport simulations to the underlying nuclear data is studied for oil-well logging applications using MCNP4C. First of all the results obtained with the JEF-2.2, ENDF/B-VI.5, and JENDL-3.2 data libraries are compared. Subsequently, the impact of several nuclides is determined by varying their total neutron cross section as well as their total photon production cross section. Finally, the photon production cross sections and the neutron cross sections are modified per reaction channel in order to discover the most important nuclear reactions playing a role in C/O-logging. The results presented in this paper are preliminary.
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