• Bulletin of the Korean Chemical Society
• /
• v.28 no.4
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• pp.679-681
• /
• 2007

• Bulletin of the Korean Chemical Society
• /
• v.32 no.10
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• pp.3790-3792
• /
• 2011

• Bulletin of the Korean Chemical Society
• /
• v.30 no.12
• /
• pp.3117-3119
• /
• 2009

• Bulletin of the Korean Chemical Society
• /
• v.33 no.12
• /
• pp.4197-4200
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• 2012

• Bulletin of the Korean Chemical Society
• /
• v.29 no.10
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• pp.2029-2032
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• 2008

• Bulletin of the Korean Chemical Society
• /
• v.26 no.12
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• pp.2075-2077
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• 2005

• Journal of the Korean Society of Radiology
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• v.16 no.7
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• pp.953-960
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• 2022

The measurement of branching ratio of ¹⁶⁷Yb radioactive isotopes from gamma-ray spectrum of ¹⁶⁹Tm(p,3n)¹⁶⁷Yb reaction were performed by using a 100-MeV proton linear accelerator of the Korea Multi-purpose Accelerator Complex (KOMAC). The ¹⁶⁷Yb isotope has a half-life of 17.5 minutes and decays to ¹⁶⁹Tm. The gamma rays generated from the ¹⁶⁷Yb isotope were measured using an HPGe detector gamma ray spectroscopy system. The energy calibration of the detector and the efficiency measurement of the detector were determined using a standard source. The gamma rays of known main energy (62.9, 106.2, 113.3, 143.5 and 176.3 keV) were measured. On the other hand, information about the intensity of the generated gamma rays is very inaccurate. Therefore, in this study, the decay strength of the main gamma rays was accurately measured. Overall, it was different from the previously known results, and in particular, it was found that the intensity of the main decay gamma ray, such as the 113.3 and 106.2 keV gamma ray, was overestimated, and it was found that the gamma ray, such as 62.9, 116.7 and 143.5 keV was underestimated. The present results are considered to be important information in the fields of nuclear fusion, astrophysics and nuclear physics in the future.