Precise Radiometry: Some Recent Aspects of Fruitful Interaction with Atomic Physics
作者:
G. Brunner,
期刊:
Isotopenpraxis Isotopes in Environmental and Health Studies
(Taylor Available online 1986)
卷期:
Volume 22,
issue 12
页码: 420-424
ISSN:0021-1915
年代: 1986
DOI:10.1080/10256018608623718
出版商: Taylor & Francis Group
关键词: age estimation;atomic models;decay;electron capture;half-time;internal conversion;nuclear physics;polarization;structural chemical analysis;X radiation
数据来源: Taylor
摘要:
Modern radiometric analytics demands a complex consideration of nuclear and electron shell processes, if more pretentious aims are envisaged. As an example the small variation of decay rates of radionuclides presents possibilities for information on chemical situations of decaying atoms. In principle this phenomenon is well known since many years, but now the situation is such that, e.g. in99mTc internal conversion, a full agreement of the difficult experiments and the respective theory was established. The secondary emission of X-rays as a consequence of high excitation of electron shells in combination with nuclear transitions supplies another example for a methodical progress of radiometry. Investigations on51Cr as an electron capture nuclide have shown that chemically induced variations of the Kαto KβX-ray intensity ratio is at least qualitatively understood.
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