Multilevel Resonance Parameters of Plutonium-241

The data previously reported by the authors on the neutron fission and capture cross sections of ²⁴¹Pu have been simultaneously fit with the Adler formalism to obtain multilevel resonance parameters. The neutron energy range of the fit was 0.01 to 100 eV. The ²⁴¹Pu cross sections in the resonance region of neutron energies are complex, and the Adler parameters present an efficient method of representing these cross sections, which are important for plutonium-fueled reactors. The parameters represent the data to an accuracy within the quoted experimental errors.