Calculation of Gamma-Ray Buildup Factors up to Depths of 100 mfp by the Method of Invariant Embedding, (II) : Improved Treatment of Bremsstrahlung
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概要
- 論文の詳細を見る
An improved method to calculate the gamma-ray buildup factors including bremsstrahlung has been developed. The exposure buildup factors with bremsstrahlung were computed by the present method for lead, iron and water at the source energy of 10.0 MeV up to depths of 100 mfp. The accuracy of the present method was checked by comparison with the calculations by use of EGS4. Excellent agreement was obtained between the calculations by both methods about the exposure buildup factors per energy (energy spectrum of transmitted photons) for lead up to depths of 10 mfp and the ratio of the exposure buildup factor with bremsstrahlung to that without bremsstrahlung for lead, iron and water up to depths of 40 mfp. It is confirmed that the present method has an accuracy sufficient to be used to the generation of an improved set of gamma-ray buildup factors including bremsstrahlung.
- 一般社団法人 日本原子力学会の論文
- 2003-04-25
著者
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Hirayama H
High Energy Accelerator Research Organization
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Hirayama Hideo
High Energy Accelerator Research Organization
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SHIMIZU Akinao
The Wakasa Wan Energy Research Center
関連論文
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- Description of Multilayered Gamma-Ray Exposure Buildup Factors up to 40 mfp by the Approximating Model
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- Validity of the Four-Parameter Empirical Formula in Approximating the Response Functions for Gamma-ray, Neutron, and Secondary Gamma-ray Skyshine Analyses
- Development of Angular Eigenvalue Method for Radiation Transport Problems in Slabs and Its Application to Penetration of Gamma Rays
- Calculation of Gamma-Ray Buildup Factors up to Depths of 100 mfp by the Method of Invariant Embedding, (I) : Analysis of Accuracy and Comparison with Other Data
- Calculation of Gamma-Ray Buildup Factors up to Depths of 100 mfp by the Method of Invariant Embedding, (II) : Improved Treatment of Bremsstrahlung
- Comparison of Line Beam Response Function for Gamma-ray Skyshine Analysis Based on Single Scattering Method with the Monte Carlo Calculations
- Calculation of Gamma-ray Exposure Buildup Factors up to 40mfp using the EGS4 Monte Carlo Code with a particle Splitting
- Validity of the Four-Parameter Empirical Formula in Approximating the Response Functions for Gamma-ray, Neutron, and Secondary Gamma-ray Skyshine Analyses
- Calculation of Gamma-Ray Buildup Factors up to Depths of 100 mfp by the Method of Invariant Embedding, (II) : Improved Treatment of Bremsstrahlung