PT Journal
AU Hornillos, MBG
   Gorlychev, V
   Caballero, R
   Cortes, G
   Poch, A
   Pretel, C
   Calvino, F
   Tain, JL
   Algora, A
   Agramunt, J
   Cano-Ott, D
   Martinez, T
   Mendoza, E
   Rissanen, J
   Aysto, J
   Jokinen, A
   Eronen, T
   Moore, I
   Penttila, H
TI Monte Carlo Simulations for the Study of a Moderated Neutron Detector
SO Journal of the Korean Physical Society
JI J. Korean Phys. Soc.
PY 2011
BP 1573
EP 1576
VL 59
IS 2
DI 10.3938/jkps.59.1573
LA English
DE Monte Carlo simulations; GEANT4; MCNPX; Beta delayed neutron emission; Neutron detector
AB This work presents the Monte Carlo simulations performed with the MCNPX and GEANT4 codes for the design of a BEta deLayEd Neutron detector, BELEN-20. This detector will be used for the study of beta delayed neutron emission and consists of a block of polyethylene with dimensions 90 x 90 x 80 cm(3) and 20 cylindrical (3)He gas counters. The results of these simulations have been validated experimentally with a (252)Cf source in the laboratory at UPC, Barcelona. Also the first experiment with this detector has been carried out in November 2009 in JYFL, Finland. In this experiment the neutron emission probability after beta decay of the fission products (88)Br, (94,95)Rb, and (138)I has been measured; this data is still under analysis. Simulations with MCNPX and GEANT4 have been performed in order to obtain the efficiency of the BELEN-20 detector for each of the above nuclei using the neutron energy distribution corresponding to each nucleus.
ER