The neutron long counter NERO for studies of beta-delayed neutron emission in the r-process

J. Pereira; P. Hosmer; G. Lorusso; P. Santi; A. Couture; J. Daly; M. Del Santo; T. Elliot; J. Goerres; C. Herlitzius; K. -L. Kratz; L. O. Lamm; H. Y. Lee; F. Montes; M. Ouellette; E. Pellegrini; P. Reeder; H. Schatz; F. Schertz; L. Schnorrenberger; K. Smith; E. Stech; E. Strandberg; C. Ugalde; M. Wiescher; A. Woehr

doi:10.1016/j.nima.2010.02.262

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arXiv · 1007.4998

The neutron long counter NERO for studies of beta-delayed neutron emission in the r-process

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Abstract

The neutron long counter NERO was built at the National Superconducting Cyclotron Laboratory (NSCL), Michigan State University, for measuring beta-delayed neutron-emission probabilities. The detector was designed to work in conjunction with a beta-decay implantation station, so that beta decays and beta-delayed neutrons emitted from implanted nuclei can be measured simultaneously. The high efficiency of about 40%, for the range of energies of interest, along with the small background, are crucial for measuring beta-delayed neutron emission branchings for neutron-rich r-process nuclei produced as low intensity fragmentation beams in in-flight separator facilities.

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J. Pereira, P. Hosmer, G. Lorusso, P. Santi, A. Couture, J. Daly, M. Del Santo, T. Elliot, J. Goerres, C. Herlitzius, K. -L. Kratz, L. O. Lamm, H. Y. Lee, F. Montes, M. Ouellette, E. Pellegrini, P. Reeder, H. Schatz, F. Schertz, L. Schnorrenberger, K. Smith, E. Stech, E. Strandberg, C. Ugalde, M. Wiescher, A. Woehr. 2010-07-28. The neutron long counter NERO for studies of beta-delayed neutron emission in the r-process. https://doi.org/10.1016/j.nima.2010.02.262

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