| Autor: |
Wang, B. S., Burke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., Saastamoinen, A. |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Phys. Rev. C 100, 064609 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevC.100.064609 |
| Popis: |
The average prompt-fission-neutron multiplicity $\bar{\nu}$ is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate-reaction method has been used for the first time to indirectly determine $\bar{\nu}$ for $^{239}$Pu($n$,$f$) via $^{240}$Pu($\alpha$,$\alpha^{\prime}f$) reactions. A $^{240}$Pu target was bombarded with a beam of 53.9-MeV $\alpha$ particles. Scattered $\alpha$ particles, fission products, and neutrons were measured with the NeutronSTARS detector array. Values of $\bar{\nu}$ were obtained for a continuous range of equivalent incident neutron energies between 0.25--26.25~MeV, and the results agree well with direct neutron measurements. |
| Databáze: |
arXiv |
| Externí odkaz: |
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