Abstract
In the last decade benchmark experiments and simulations, together with newly obtained neutron cross section data, have pointed out deficiencies in evaluated data files of W isotopes. The role of W as a fundamental structural material in different nuclear applications fully justifies a new evaluation of 182, 183, 184, 186 W neutron resonance parameters. In this regard transmission and capture cross section measurements on natural and enriched tungsten samples were performed at the GELINA facility of the EC-JRC-IRMM. A resonance parameter file used as input in the resonance shape analysis was prepared based on the available literature and adjusted in first instance to transmission data.
Highlights
An accurate knowledge of neutron induced cross sections of tungsten is important in different fields, from nuclear astrophysics to neutron dosimetry, to fission and fusion technology
The role of W as a fundamental structural material in different nuclear applications fully justifies a new evaluation of 182, 183, 184, 186W neutron resonance parameters. In this regard transmission and capture cross section measurements on natural and enriched tungsten samples were performed at the GELINA facility of the EC-JRC-IRMM
Several benchmark experiments in the last decade have pointed out deficiencies and discrepancies in evaluated data files; a rather recent evaluation in the fast neutron range, performed by Capote et al (2007), underlined that no significant improvement in quality seems to be possible without new measurements [2]
Summary
An accurate knowledge of neutron induced cross sections of tungsten is important in different fields, from nuclear astrophysics to neutron dosimetry, to fission and fusion technology. In the last decade benchmark experiments and simulations, together with newly obtained neutron cross section data, have pointed out deficiencies in evaluated data files of W isotopes.
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