TF_Antimony#Tellurium.28Te.29_to_Antimony.28Sb.29
Natural Tellurium competing reactions
[math]\gamma + Te-130 \rightarrow Sb-129 + p (4 hour half life)\rightarrow Te-128 + \beta^- [/math]
[math]\gamma + Te-130 \rightarrow Te-129 + n (70 min half life)\rightarrow I-129 + \beta^- [/math]
I-129 is basically stable
[math]\gamma + I-129 \rightarrow Te-128 + p [/math]
[math]\gamma +I-129 \rightarrow I-128 + n (25 min half life)\rightarrow Xe-128 + \beta^- [/math]
Te-128 and Xe-128 are stable
[math]\gamma + Te-128 \rightarrow Sb-127 + p ( 4 sec half life)\rightarrow Te-127 + \beta^-( 9 hour half life)\rightarrow I-127 + \beta^-[/math]
[math]\gamma + Te-128 \rightarrow Te-127 + n (9 hour half life)\rightarrow I-127 + \beta^-[/math]
I-127 is stable
[math]\gamma + Te-126 \rightarrow Sb-125 + p (2 year Half life)\rightarrow Te-125 + \beta^-[/math]
[math]\gamma + Te-126 \rightarrow Te-125 + n[/math]
Te-125 is stable
[math]\gamma + Te-125 \rightarrow Sb-124 + p (60 days half life)[/math]
[math]\gamma + Te-125 \rightarrow Te-124 + n[/math]
Te-124 is stable
[math]\gamma + Te-124 \rightarrow Sb-123 + p [/math]
[math]\gamma + Te-124 \rightarrow Te-123 + n[/math]
Te-123 and Sb-123 are stable
[math]\gamma + Te-122 \rightarrow Sb-121+ p [/math]
[math]\gamma + Te-122 \rightarrow Te-121 + n (20 day half life)[/math]
Sb-121 is stable
9 hour half life to produce it makes this nuclide ignorable