Article

WinXCom—a program for calculating X-ray attenuation coefficients

Technical University of Denmark, Lyngby, Capital Region, Denmark
Radiation Physics and Chemistry (Impact Factor: 1.19). 10/2004; 71(3):653-654. DOI: 10.1016/j.radphyschem.2004.04.040
27 Followers
 · 
2,010 Views
  • Source
    • "is the fractional abundance of constituent element i, n i is the total number of atoms and P j n j is the total number of atoms present in the molecular formula, A i and z i are the atomic weight and atomic number, respectively. ðl=qÞ i is the mass attenuation coefficient obtained from the WinXCom program [28] "
    [Show abstract] [Hide abstract]
    ABSTRACT: Soda lime glasses doped with CeO2, Nd2O3 and MnO2 were prepared. Thermoluminescence (TL) properties, such as glow curves and linearity of TL response on irradiation dose were investigated. Results showed that the TL properties depended on the type and concentration of the dopants. Samples were selected to calculate energy trap depth parameters. To design materials for radiation dosimetry, physical properties, ion concentration, elastic properties and effective atomic numbers are important. Theoretical bond compression models were used to determine the elastic moduli for comparison with experimental values. Results show fair agreement between theoretical and experimental measurements. The high elastic moduli of the glass samples indicated high rigidity and stability of the glass matrix structure.
    Materials and Design 09/2015; 80:20-27. DOI:10.1016/j.matdes.2015.05.002 · 3.50 Impact Factor
  • Source
    • "Theoretical values of mass attenuation coefficients were also calculated using a computer programme, namely WinXCom, which was initially developed by Berger and Hubbell and later modified to window version by Gerward et al [30]. In the present study, experimental results are in good agreement with theoretical values within estimated errors except of the results for "
    [Show abstract] [Hide abstract]
    ABSTRACT: Different gamma radiation interaction parameters has been measured experimentally for the prepared diaspore-flyash concretes at 59.54, 662, 1173 and 1332 keV using narrow-beam transmission geometry and results are found to be in good agreement with theoretical values computed with a computer programme, WinXCom. The radiation exposure rate and absorbed dose rate for the gamma radiation with and without shielding of diaspore-flyash concretes have been determined using linear attenuation results. The results show that on average, there is reduction of 95%, 53% and 40% in dose rate for gamma sources (241)Am, (137)Cs and (60)Co, respectively with diaspore-flyash concretes as shielding material. Other health physics parameters namely equivalent dose, effective dose, gamma flux and energy fluence rate have also been determined.
    Journal of Radiological Protection 05/2015; 35(2):401-414. DOI:10.1088/0952-4746/35/2/401 · 1.32 Impact Factor
  • Source
    • "The m/ρ values of the alloys were calculated by using mixture rule (ðm=ρÞ alloy ¼ ∑ n i w i ðm=ρÞ i ) where w i is the proportion by weight and ðm=ρÞ i is mass attenuation coefficient of the i th element by using WinXcom (Gerward et al., 2004). The effective atomic numbers of the alloys were calculated by the ratio of the effective atomic cross section (σ a ) and electronic cross section (σ e ) of the alloys (Singh et al., 2002). "
    [Show abstract] [Hide abstract]
    ABSTRACT: The mass attenuation coefficients, µ/ρ and effective atomic numbers, Zeff of some carbon steel and stainless steel alloys have been calculated by using Geant4, MCNP simulation codes for different gamma ray energies, 279.1 keV, 661.6 keV, 662 keV, 1115.5 keV, 1173 keV and 1332 keV. The simulation results of Zeff using Geant4 and MCNP codes have been compared with possible available experimental results and theoretical WinXcom, and good agreement has been observed. The simulated µ/ρ and Zeff values using Geant4 and MCNP code signifies that both the simulation process can be followed to determine the gamma ray interaction properties of the alloys for energies wherever analogous experimental results may not be available. This kind of studies can be used for various applications such as for radiation dosimetry, medical and radiation shielding.
    Radiation Physics and Chemistry 01/2015; 106:255-260. DOI:10.1016/j.radphyschem.2014.07.002 · 1.19 Impact Factor
Show more

Preview

Download
201 Downloads
Available from