Publications related to gamma-ray buildup factors

Reprint of the following papers can be requested from H. Hirayama (hideo.hirayama kek.jp).
  1. H. Hirayama:Exposure Buildup Factors of High-Energy Gamma Rays for Water, Concrete, Iron, and Lead, Nucl. Tech. 77(1987)60-67.
  2. Y. Harima, H. Hirayama, T. Ishikawa, Y. Sakamoto, and S. Tanaka:A Comparisonof Gamma-Ray Buildup Factors for Low-Z Material and for Low Energies Using Discrete Ordinates and Point Monte Carlo Methods, Nucl. Sci. Eng., 96(1987)241-252.
  3. H. Hirayama and D. K. Trubey:Effects of Incoherent and Coherent Scattering on Exposure Buildup Factors of Low-Energy Gamma-Rays, Nucl. Sci. Eng. 99(1988) 145.
  4. H. Hirayama, S. Tanaka, S. Sakamoto, K. V. Subbaiah, and Y. Harima: Comparison of Gamma-Ray Point Isotropic Buildup Factors Including Fluorescence and Bremsstrahlung in Lead Using Discrete Ordinates and Point Monte Carlo Methods, J. Nucl. Sci. and Tech. 27(1990)524-534.
  5. Y. Harima and H. Hirayama: Detailed Behavior of Exposure Buildup Factor in Stratified Shields for Plane-Normal and Point Isotropic Sources, Including the Effects of Bremsstrahlung and Fluorescent Radiation, Nucl. Sci. Eng., 113(1993) 367-378.
  6. K. Shin and H. Hirayama: A new Approximating Model for Gamma-Ray Buildup Factors of Stratified Shield, Nucl. Sci. Eng., 118(1994)91-102 (KEK Preprint 94-18).
  7. Y. Namito, H. Hirayama and S. Ban: Effects of Linear Polarization and Doppler Broadening on the Exposure Buildup Factors of Low-Energy Gamma Rays, Nucl. Sci. Eng. 120(1995)199-210.
  8. Shin, K. and Hirayama, H.: Approximating Model for Multilayer Gamma-Ray Buildup Factors by Transmission Matrix Method - Application to Point Isotropic Source Geometry, Nucl. Sci. Eng. , 120(1995)211-222 (KEK Preprint 94-194).
  9. H. Hirayama:Calculation of Gamma-ray Exposure Buildup Factors up to 40 mfp using the EGS4 Monte Carlo Code with a Particle Splitting, J. Nucl. Sci. Technol. 32(1995)1201-1207 (KEK Preprint 95-97).0
  10. H. Hirayama:Application of the EGS4 Monte Carlo Code to the Study of Gamma-Ray Exposure Buildup Factors Up to 40 MFP, Proceedings of 1996 Topical Meeting Radiation Protection & Shielding, No. Falmouth, Massachustts, April 21-25(1996) 516-523.
  11. K. Shin and H. Hirayama: Approximating Model of Multilayer Gamma-Ray Buildup Factors: Application to Thick Shield Problems, Proceedings of 1996 Topical Meeting Radiation Protection \& Shielding, No. Falmouth, Massachustts, April 21-25(1996)524-532.
  12. H. Hirayama, "Effects of the Photon Cross Sections and Energy-Absorption Coefficients of Air to the Gamma-Ray Point Isotropic Exposure Buildup Factors, Nucl. Sci. Eng., 124(1996)258-270.
  13. H. Hirayama and K. Shin:Application of the EGS4 Monte Carlo Code to aStudy of Multilayer Point Isotropic Gamma-Ray Exposure Buildup Factors up tp 40 mfp, Submitted to 1997 International Conference on Radiation Dosimetry and Safety, Taipei, Taiwan, 1997, KEK Preprint 96-175.
  14. H. Hirayama and K. Shin:Application of the EGS4 Monte Carlo Code to a Study of Multilayer Gamma-Ray Exposure Buildup Factors of up to 40mfp, to be published in J. Nucl. Sci. Technol., KEK Preprint 98-165.
  15. H. Hirayama and K. Shin:Description of Multilayer Gamma-Ray Exposure Buildup Factors of up to 40 mfp by the Approximating Model, to be published in J. Nucl. Sci. Technol, KEK Preprint 98-170, October 1998.

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