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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Effective atomic number and electron density of some biologically important lipids for electron, proton, alpha particle and photon interactions
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Effective atomic number and electron density of some biologically important lipids for electron, proton, alpha particle and photon interactions

机译：用于电子，质子，α粒子和光子相互作用的一些生物学上重要脂质的有效原子数和电子密度

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摘要

X-ray, y-ray and charged particle interaction parameters of biomolecules are useful in medical diagnosis and radiation therapy as exposure to radiations can cause energy of photons and charged particles to be deposited in body through various interaction processes. With this in view, the effective atomic number (Z(eff)) and electron density (N-eff) of some biologically important lipids for X-ray, y-ray and charged particle interactions were studied in the energy range 10 key-500 MeV using logarithmic interpolation method. A non-monotonic variation in Zeff values was observed for protons and alpha particles in low and intermediate energy regions respectively whereas a sudden increase in Z(eff) was observed for electron interaction in higher energy region. Z(eff) values were maximum in higher energy region for total electron interactions whereas maximum of Z(eff) for total alpha particle interactions were at relatively lower energies. Highest Z(eff) values were found at lower energy region of photoelectric absorption dominance for photon interactions. Variation in N-eff seems to be similar to variation in Z(eff) as they are inter-related.
机译：生物分子的X射线，Y射线和带电粒子相互作用参数可用于医学诊断和放射治疗，因为暴露于辐射可能导致光子和带电粒子通过各种相互作用过程沉积在体内的能量。用这种看法，在能量范围10键-500中研究了一些生物学上重要的脂质的一些生物学上重要脂质的有效原子序数（Z（Eff））和电子密度（n-eff） MEV使用对数插值方法。对于低和中间能量区域的质子和α颗粒，观察到Zeff值的非单调变化，而在更高能量区域中观察到Z（Eff）的突然增加，以便电子相互作用。对于总电子相互作用的较高能量区域，Z（Eff）值最大，而总α颗粒相互作用的最大Z（EFF）在相对较低的能量下。在光电相互作用的光电吸收优势的较低能量区域下发现最高Z（EFF）值。 N-EFF的变化似乎与Z（EFF）的变化类似，因为它们是与之相关的。

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