Determination of mass attenuation coefficient of low-Z dosimetric materials

被引：22

作者：

El-Khayatt, A. M. ^{[1
,2
]}

Ali, A. M. ^{[2
,3
]}

Singh, Vishwanath P. ^{[4
,5
]}

Badiger, N. M. ^{[4
]}

机构：

[1] Al Imam Mohammad Ibn Saud Islamic Univ IMSIU, Dept Phys, Coll Sci, Riyadh, Saudi Arabia

[2] Atom Energy Author, Reactor Phys Dept, NRC, Cairo 13759, Egypt

[3] Jazan Univ, Dept Phys, Fac Sci, Jazan, Saudi Arabia

[4] Karnatak Univ, Dept Phys, Dharwad 580003, Karnataka, India

[5] NPCIL, Hlth Phys Sect, Kaiga Atom Power Stn 3&4, Karwar 581400, India

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 2014年 / 169卷 / 12期

关键词：

MC simulate; gamma; dosimetry; EFFECTIVE ATOMIC NUMBERS; ELECTRON-DENSITIES; ENERGY-ABSORPTION; CROSS-SECTION; MCNP CODE; PHOTON; PROGRAM; BARITE; STEEL; XCOM;

D O I：

10.1080/10420150.2014.988626

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The mass attenuation coefficients of some low-Z dosimetric materials with potential applications in dosimetry, medical and radiation protection have been investigated using the Monte Carlo simulation code Monte Carlo N-Particle (MCNP). Appreciable variations are noted for the mass attenuation coefficient by changing the photon energy. The MCNP-simulated parameters are compared with the experimental data wherever possible and theoretical values through the WinXcom program. The simulated results obtained by MCNP generally agree well with the experiment and WinXcom predictions for various low-Z dosimetric and tissue substitute materials. In addition, the mass attenuation coefficients around the k-edges for low-Z dosimetric materials estimated from the MCNP code agree very well with WinXcom prediction. Finally, the results indicate that this simulation process can be followed to determine the interaction parameters of gamma rays in such low-Z materials for which there are no satisfactory experimental values available.

引用

页码：1038 / 1044

页数：7

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