An ion trap for β-delayed neutron spectrum measurement
32nd Annual CNS Conference - 2011 June 05-08

Presented at:
32nd Annual CNS Conference
2011 June 05-08
Niagara Falls, Canada
Session Title:
Fuel, Spent Fuel, Decommissioning and the Environment

Nicholas Scielzo (Lawrence Livermore National Laboratory)
Ryan Yee (University of California, Berkeley)
Gang Li (McGill University)
Ralph Segel (Northwestern University)
Peter Bertone (Argonne National Laboratory)
Fritz Buchinger (McGill University)
Jason Clark (Argonne National Laboratory)
John Crawford (McGill University)
Daniel Lascar (Northwestern University)
Johnathon Schelt (University of Chicago)
Anthony Levand (Argonne National Laboratory)
Marisa Pedretti (Lawrence Livermore N   


The trap has an open geometry which allows four sets of radiation detectors covering a substantial potion of solid angle. In combination with Microchannel Plate (MCP) detector and plastic scintillator detector, BPT is able to measure the beta delayed neutron spectrum to 1% level.


A Beta decay Paul Trap (BPT) has been constructed at Argonne National Laboratory for the precise beta decay measurement. We have demonstrated the capability of producing and transferring a low-energy, bunched, and isotopically pure ions beam. In the trap, ions are cooled to sub-eV energies, and confined in a volume of less than 1 mm3.

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