Application of Pade approximation for calculation of epithermal neutron self-shielding factors of some materials dealing with Doppler broadening effects.
The Pade approximation method has been applied to calculate the epithermal neutron self-shielding factors for some materials used as a comparator in k(0)-standardization method. It includes a Doppler broadening effect correction. Based on an assumption of an isotropic neutron field, the epithermal neutron self-shielding factors in foils and wires of Co, Mo, Zr and Au were calculated. The present method has the advantage of accuracy as well as being less time consuming for calculation. The extensions of this method to obtain the factors for different materials with many resonances could be performed with ease. The obtained values are compared with previous values and their experimental values.
Phuong
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HT
Department of Nuclear Physics, University of Natural Sciences of HoChiMinh city, 227 Nguyen Van Cu Str., Dist.5, HCM city, Vietnam. htphuong.oarai@gmail.com
Nhon
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MV
Trang
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Ishitsuka
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