Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5492549 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 7 Pages |
Abstract
A novel technique of direct neutron-multiplicity sorting with a flat-efficiency detector is proposed to resolve the long-standing discrepancy between the Livermore and Saclay data of partial photoneutron cross sections. A flat-response neutron detector with the detection efficiency of 36.5±1.6% over a neutron energy range 0.01-5.0 MeV was developed by optimizing triple-ring configurations of He proportional counters embedded in a polyethylene moderator. The technique forms a foundation of measuring cross sections with x=1â3 for the photonuclear data project of the International Atomic Energy Agency. The methodology of direct neutron-multiplicity sorting and key experimental elements are presented.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Hiroaki Utsunomiya, Ioana Gheorghe, Dan M. Filipescu, Tudor Glodariu, Sergey Belyshev, Konstantin Stopani, Vladimir Varlamov, Boris Ishkhanov, Seitarou Katayama, Daiki Takenaka, Takashi Ari-izumi, Sho Amano, Shuji Miyamoto,