β-Delayed Neutron Spectroscopy Using Trapped Radioactive Ions

Yee, R. M.; Scielzo, N. D.; Bertone, P. F.; Buchinger, F.; Caldwell, S.; Clark, J. A.; Deibel, C. M.; Fallis, J.; Greene, J. P.; Gulick, S.; Lascar, D.; Levand, A. F.; Li, G.; Norman, E. B.; Pedretti, M.; Savard, G.; Segel, R. E.; Sharma, K. S.; Sternberg, M. G.; Van Schelt, J.; Zabransky, B. J.

doi:10.1103/PhysRevLett.110.092501

Title: $β$ -Delayed Neutron Spectroscopy Using Trapped Radioactive Ions

Journal Article · Tue Feb 26 00:00:00 EST 2013 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.110.092501· OSTI ID:1454836

Yee, R. M. ^[1]; Scielzo, N. D. ^[2]; Bertone, P. F. ^[3]; Buchinger, F. ^[4]; Caldwell, S. ^[5]; Clark, J. A. ^[3]; Deibel, C. M. ^[6]; Fallis, J. ^[7]; Greene, J. P. ^[3]; Gulick, S. ^[4]; Lascar, D. ^[8]; Levand, A. F. ^[3]; Li, G. ^[9]; Norman, E. B. ^[10]; Pedretti, M. ^[2]; Savard, G. ^[5]; Segel, R. E. ^[11]; Sharma, K. S. ^[7]; Sternberg, M. G. ^[5]; Van Schelt, J. ^[5] more »

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate; Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
McGill Univ., Montreal, QC (Canada). Dept of Physics
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Univ. of Chicago, IL (United States). Dept. of Physics
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Michigan State Univ., East Lansing, MI (United States). Joint Inst. for Nuclear Astrophysics
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Univ. of Manitoba, Winnipeg, MB (Canada). Dept. of Physics and Astronomy
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy
Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division; McGill Univ., Montreal, QC (Canada). Dept of Physics
Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy

Here, a novel technique for β-delayed neutron spectroscopy has been demonstrated using trapped ions. The neutron-energy spectrum is reconstructed by measuring the time of flight of the nuclear recoil following neutron emission, thereby avoiding all the challenges associated with neutron detection, such as backgrounds from scattered neutrons and γ rays and complicated detector-response functions. ¹³⁷I⁺ ions delivered from a ²⁵²Cf source were confined in a linear Paul trap surrounded by radiation detectors, and the β-delayed neutron-energy spectrum and branching ratio were determined by detecting the β^- and recoil ions in coincidence. Systematic effects were explored by determining the branching ratio three ways. Improvements to achieve higher detection efficiency, better energy resolution, and a lower neutron-energy threshold are proposed.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Northwestern Univ., Evanston, IL (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA). Nuclear Science and Security Consortium (NSSC); USDHS; Natural Sciences and Engineering Research Council of Canada (NSERC); National Science Foundation (NSF)

Grant/Contract Number:: NA0000979; AC02-06CH11357; AC52-07NA27344; FG02-98ER41086; 216974; DGE-0638477

OSTI ID:: 1454836

Alternate ID(s):: OSTI ID: 1102357

Journal Information:: Physical Review Letters, Vol. 110, Issue 9; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 30 works

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