Abstract
The neutron transmission through 91 Zr was measured at both the 80 and 200 m stations of ORELA and, in combination with a capture measurement at .the 40 m. station, has resulted in resolved resonance parameters below. 20 keV bombarding , energy. The average s-wave resonance parameters obtained were as follows: the average level spacing <D). = 640� 120 eV,. the neutron strength function 104S~ = O�36�0�10 and the average radiative width <r,). = 140�8 meV. For p waveS, the average parameters were: <D)p = 300� 50 eV, 104 SI =5' 7 � 1'0 and <r,)p = 220� 12 meV. A correlation between p-wave reduced neutron widths and radiative widths is found which is attributed to valence neutron transitions.
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