Abstract
The level scheme of91Nb has been investigated with the reaction90Zr(p, γ)91Nb. Proton energies between 3.0 and 7.2 MeV were used. The γ spectra were taken with Ge(Li) detectors. Primary γ transitions to 36 excited states of91Nb up to 3.8 MeV excitation energy and many secondary γ transitions from the decay of those states were observed, leading to an extension of the known level scheme. The proton binding energy for91Nb was determined as (5167± 5) keV. Eleven γ transitions in90Zr, part of them new, from the competing reaction90Zr(p, p′ γ) were also observed.
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Work supported in part by the National Science Foundation.
I am indebted to Dr. D. M. Van Patter for many helpful and stimulating discussions and for his experimental assistance. I am grateful to Drs. H. L. Scott and R. N. Horoshko for their help in taking data at the tandem accelerator and to Dr. C. P. Swann for his generous help in the measurements at the Bartol machine. I want to thank Dr. K. Stelzer and B. Seim for some interesting discussions. I also want to thank the Berlin group for communicating their91Zr(p, n) data prior to publication.
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Rauch, F. The level scheme of91Nb from the reaction90Zr (p, γ)91Nb. Z. Physik 243, 105–113 (1971). https://doi.org/10.1007/BF01397854
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DOI: https://doi.org/10.1007/BF01397854