IAEA Nuclear Data Section

Aggregated Delayed Neutron Spectra

Detailed information about experiment is presented in Annals of Atomic Energy
Short discription of the data base:
  1. Source of primary neutron: accelerator based reaction T(p,n) in polyethylene block
  2. Detector of delayed neutron spectra: He-3 spectrometer
  3. Time of sample irradiation: short irradiation (tir=20 s) and long irradiation (tir=120 s)
  4. Method of measurements: cyclic irradiation of sample and measurements of delayed neutron spectra in time windows (indicated in tables)
  5. Processing of the data (see the reference paper)
  6. The database can be used as a benchmark for validation of both delayed neutron spectra from individual precursors and for delayed neutron spectra for group data.
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Excel

Origin plots

All short and long windows de-4 and10kev
gr1 0-2s long
gr1 o12-2s 120 long full
gr1 short 0.12-1s
gr2 2-12s long 120s
gr2 short 1-2 20s irrad
gr3 12-22s long 120s
gr3 short 2-3s 20s
gr4 22-32s long 120s
gr4 short 3-4s 20s
gr5 32-152s long120s
gr5 short 4-44s 20s

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Origin viewer


Pdf plots

All plots as pdf
Short Irradiation
dEn = 4 keV
Short Irradiation
dEn = 10 keV
Long Irradiation
dEn = 4 keV
Long Irradiation
dEn = 10 keV