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

$β$ -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; UC Berkeley
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.

View Accepted Manuscript (DOE)

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

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

OSTI ID:: 1454836

Alternate ID(s):: OSTI ID: 1102357

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

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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