EYE-LENS DOSE COEFFICIENTS:  A SIMULATION STUDY COMPARING OPERATIONAL DOSE USING MCNP AND GEANT4 MONTE CARLO SIMULATION CODES

Mohammed K. Saeed1, Abdullah Ali M. Asiri2

 

The aims of this work include evaluating the capability of the GEANT4 Monte Carlo code to describe electron dose coefficients for eye-lens using ICRU tissue cylindrical phantoms and comparing the results with Monte Carlo N-Particle (MCNP) and MCNPXTM data retrieved from the literature. A few years back, the International Commission on Radiological Protection (ICRP) issued a statement to lower the eye dose occupational annual dose limit. Therefore, efforts have increased globally in this regard using dose simulation to calculate the eye-lens dose coefficients.

Materials and methods. Three scattering models provided by GEANT4 (Urban, Wentzel-VI and Goudsmit-Saunderson) were used in this work to calculate the electron eye-lens dose coefficients.

Results. It became clear from this study that choosing of the scattering model has a strong influence for electron energies at 1 MeV and below.

Conclusion. The use of the Urban scattering model with GEANT4 may be preferred as it was earlier reported to best represent experimental measurements. However, the description of electron dose coefficients at 3 mm depth deserves further consideration at these energies levels.

Department of Radiological Sciences, Applied Medical Sciences College, Najran University. Najran, Saudi Arabia.

Keywords: GEANT4, scattering models, eye-lens dose coefficients, Hp(3).

 


Corresponding author: Mohammed K. Saeed, e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript

 

For citation: Mohammed K. Saeed, Abdullah Ali M. Asiri. Eye-lens dose coefficients:  a simulation study comparing operational dose using MCPR and GEANT4 Monte Carlo simulation codes. REJR 2021; 11(4):122-128. DOI: 10.21569/2222-7415-2021-11-4-122-128.

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Received:        12.10.21 Accepted:       02.12.21