Monte Carlo simulation of response function for a NaI(Tl) detector for gamma rays from 241Am/Be source

Energy calibration of gamma spectra in plastic scintillators using Compton kinematics

“…[5][6][7][8][9][10]). Because the most important physical processes have been taken into account in these simulations, results have shown very good agreement with experimental data.…”

Design by Monte Carlo method of a thermal neutron device using a 241Am/9Be source and high-density polyethylene moderator

“…Isotopic neutron sources of (α,n) type, as 241 Am/ 9 Be employed in this work, have found many applications, especially in scientific re search and in calibration field. The 241 Am isotope is a strong α particle emitter and mixed with Beryllium produces neutrons through the 9 Be (α,n) 12 C reaction (Vitorelli et al, 2005). The neutron spectrum emitted by a 241 Am/ 9 Be source lie down between 0.8 and 10 MeV, with a mean energy of 3.2 MeV (Vega Carrillo and Martinez Ovalle, 2016).…”

Study of volume fractions on biphasic stratified regime using gamma ray

“…The GEB is a special treatment provided in the MCNPX code (card FTn) option has been used to fit the full energy peak shape of the PHD, the GEB parameters have been set taking into account the resolution of the detector by the FWHM provided by radioactive sources [12][13][16][17][18][19], for this it must to be inserted into the input file (INP), the mathematical model of the detector. A set of measurements were performed in order to determine the energy resolution curve of the real NaI(Tl) scintillator detector (crystal + housing + photomultiplier tube material equivalent) used for this work, and the curve's coefficients were introduced in the function provided by the MCNPX code that fits a Gaussian to the spectrum to make the proper corrections [12][13]19].…”