The Auger effect in physical and biological research

The Auger effect in physical and biological research
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物理和生物研究中的俄歇效应

DOI:
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发表时间:
2008
影响因子:
2.6
通讯作者:
D. Charlton
D. Charlton
中科院分区:
医学3区
文献类型:
--
作者:
Hooshang Nikjoo;D. Emfietzoglou;D. Charlton

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目的:本文报道了125 I和124 I无辐射跃迁物理学的进展以及新的俄歇谱。我们报告的进展,蒙特卡罗轨道结构模拟的低能电子包括大多数电子释放的衰变大多俄歇发射体。材料和方法:电子俘获(EC)和内转换(IC)的输入数据来自各种物理数据库。用Monte Carlo方法模拟俄歇电子能谱。类似地,使用蒙特卡罗轨道结构方法产生电子轨道。结果:给出了放射性核素124 I和125 I的EC、IC和结合能(BE)数据。对于每一个放射性核素125 I和124 I的个别衰变的电子光谱的一些例子。由于大多数俄歇电子是低能量和短程的,数据和简短的讨论,最近的蒙特卡罗轨道结构的发展,在凝聚介质和他们的准确性。结论:俄歇发射放射性核素的电子簇射衰变中电子能谱计算的准确性取决于是否有准确的物理数据。这些库中存在许多空白,需要对分析方法和蒙特卡罗计算进行详细比较,以改进计算方法。在电子径迹的模拟方面,虽然现在已经有了改进的亚千电子伏液态水电子相互作用截面模型,但还需要更多的实验数据来进行基准测试。此外,还需要在线提供俄歇谱计算的数据和程序,供学生和研究人员使用。
Purpose: The paper reports on progress in physics of radiationless transitions and new Auger spectra of 125I and 124I. We report progress in Monte Carlo track structure simulation of low energy electrons comprising majority electrons released in decay most Auger emitters. Materials and methods: The input data for electron capture (EC) and internal conversion(IC) were obtained from various physics data libraries. Monte Carlo technique was used for the simulation of Auger electron spectra. Similarly, electron tracks were generated using Monte Carlo track structure methods. Results: Data are presented for the EC, IC and binding energy (BE) of radionuclides 124I and 125I. For each of the radionuclides 125I and 124I some examples of electron spectra of individual decays are given. Because most Auger electrons are low energy and short range, data and a short discussion are presented on recent Monte Carlo track structure development in condensed media and their accuracy. Conclusions: Accuracy of electron spectra calculated in the decay of electron shower by Auger emitting radionuclides depends on availability of accurate physics data. There are many gaps in these libraries and there is a need for detailed comparison between analytical method and Monte Carlo calculations to refine the method of calculations. On simulation of electron tracks, although improved models for sub-keV electron interaction cross sections for liquid water are now available, more experimental data are needed for benchmarking. In addition, it is desirable to make data and programs for calculations of Auger spectra available online for use by students and researchers.
DOI: 10.1118/1.596927
发表时间: 1992-11-01
期刊: MEDICAL PHYSICS
影响因子: 3.8
作者:
HOWELL, RW
通讯作者: HOWELL, RW
Thallium-201:剂量测定的实验和理论放射生物学方法。
DOI: --
发表时间: 1983
期刊: Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子: --
作者:
Kassis,AI;Adelstein,SJ;Haydock,C;Sastry,KS
通讯作者: Sastry,KS
俄歇过程的生物物理方面——综述。
DOI: 10.3109/02841869609104028
发表时间: 1996
期刊: Acta oncologica (Stockholm, Sweden)
影响因子: --
作者:
Hofer,KG
通讯作者: Hofer,KG