High-resolution transmission measurements of zirconium" metal samples have been carried out at ORELA using the 80-m flight path and an improved 6 Li-glass scintillation neutron detector. Four different thicknesses of the pura zirconium metal and one sample of zircalloy were used in four separate experiments. The transmission data for these samples were measured at room temperature, and one sample was cooled to liquid nitrogen temperature. These data were analyzed using the multilevel R-matrix computer code SAMMY. The resonance parameters obtained for the 292.4-eV resonance of 91 Zr (including both statistical and systematic uncertainties) are: J*»3 + , E o =292.40±0.10 eV, r n =665±5 meV, r T =131±10 meV, and cc(r n ,r Y )=0.14. The parameters obtained for the 301.1-eV resonance in 96 Zr are: J=1/2 S E o =301.14±0.10 eV, r n =223±7 meV, iy=285±38 meV, and cc(r n ,r Y )=0.80.
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