期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2015.12.041
关键词
Electron spectroscopy; Background subtraction; Energy reconstruction; Internal conversion coefficient; Silicon detector
类别
资金
- UK Science and Technology Facilities Council
- Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator Based Physics) [213503]
- European Research Council under the SHESTRUCT project [203481]
- GAMMAPOOL network
- STFC [ST/L005689/1, ST/L005670/1, ST/F012039/1, EP/D002257/1, ST/J000094/1] Funding Source: UKRI
- Science and Technology Facilities Council [EP/D002257/1, ST/L005689/1, ST/F012039/1, ST/J000094/1, ST/L005670/1] Funding Source: researchfish
A non-reference based method to determine internal conversion coefficients using the SAGE spectrometer is carried out for transitions in the nuclei of Sm-154, Sm-152 and Yb-166. The Normalised-Peak-to-Gamma method is in general an efficient tool to extract internal conversion coefficients. However, in many cases the required well-known reference transitions are not available. The data analysis steps required to determine absolute internal conversion coefficients with the SAGE spectrometer are presented. In addition, several background suppression methods are introduced and an example of how ancillary detectors can be used to select specific reaction products is given. The results obtained for ground-state band E2 transitions show that the absolute internal conversion coefficients can be extracted using the methods described with a reasonable accuracy. In some cases of less intense transitions only an upper limit for the internal conversion coefficient could be given. (C) 2016 Elsevier B.V. All rights reserved.
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