EJNMMI Physics

Table 1 Gamma-ray and X-ray intensities for ¹⁶¹Tb (only the main gamma-emission lines are shown)

From: Precise activity measurements of medical radionuclides using an ionization chamber: a case study with Terbium-161

Energy (keV) [26]	Emission intensities (%) [27]	s rel. (%)
48.91533	17.73	2.1
45.999	12.779	2.1
74.56669	10.28	1.7
45.2083	7.747	2.2
52.191	3.741	2.0
57.56669	2.066	1.9
53.6353	1.0185	1.9
59.243	0.2002	1.8
87.941	0.1996	1.6
103.065	0.1077	1.5

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