Difference between revisions of "TF Natural Te reactions"

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==Te-130(34%)==
 
==Te-130(34%)==
  
<math>\gamma + Te-130 \rightarrow Sb-129 + p \rightarrow Te-128 + \beta^- (4 hour half life)</math>  
+
<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 \rightarrow I-129 + \beta^- (70 min half life)</math>
+
<math>\gamma + Te-130 \rightarrow  Te-129 + n (70 min half life)\rightarrow I-129 + \beta^- </math>
  
 
I-129 is basically stable
 
I-129 is basically stable
 +
 +
Te-129 has an 11/2- excited state that emits a 105 keV photon when it de-excites
  
 
===I-129===
 
===I-129===
 
<math>\gamma + I-129 \rightarrow Te-128 + p </math>  
 
<math>\gamma + I-129 \rightarrow Te-128 + p </math>  
  
<math>\gamma +I-129 \rightarrow  I-128 + n \rightarrow Xe-128 + \beta^- (25 min half life)</math>
+
<math>\gamma +I-129 \rightarrow  I-128 + n (25 min half life)\rightarrow Xe-128 + \beta^- </math>
  
  
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==Te-128(32%)==
 
==Te-128(32%)==
<math>\gamma + Te-128 \rightarrow Sb-127 + p \rightarrow Te-127 + \beta^-\rightarrow I-127 + \beta^-</math>  
+
<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</math>
+
<math>\gamma + Te-128 \rightarrow  Te-127 + n (9 hour half life)\rightarrow I-127 + \beta^-</math>
  
 
I-127 is stable
 
I-127 is stable
  
 
==Te-126(19%)==
 
==Te-126(19%)==
<math>\gamma + Te-126 \rightarrow Sb-125 + p</math>  
+
<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>
 
<math>\gamma + Te-126 \rightarrow  Te-125 + n</math>
 +
 +
Te-125 is stable
  
 
==Te-125(7%)==
 
==Te-125(7%)==
 +
<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
  
 
==Te-124(5%)==
 
==Te-124(5%)==
 +
 +
<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
  
 
==Te-122(2.5%)==
 
==Te-122(2.5%)==
 +
<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
  
 
==Te-123(1%)==
 
==Te-123(1%)==
 +
<math>\gamma + Te-123 \rightarrow  Sb-122+ p ( 2day half life) \rightarrow  Te-122+ \beta^- ( 2day half life)</math>
 +
 +
<math>\gamma + Te-123 \rightarrow  Te-122 + n </math>
  
Yield Problem: Te-120 is only 0.1% of the natural abundance. Highest natural abundance is Te-126 at 19%, then Te-125 at 7%, Te-124 at 5%, Te-122 at 2.5%, Te-123 at 1%.
 
  
 +
Te-122 is stable
  
 +
==I-127==
  
 +
9 hour half life to produce it makes this nuclide ignorable
  
 
[[TF_Antimony#Tellurium.28Te.29_to_Antimony.28Sb.29]]
 
[[TF_Antimony#Tellurium.28Te.29_to_Antimony.28Sb.29]]

Latest revision as of 20:01, 7 December 2023

TF_Antimony#Tellurium.28Te.29_to_Antimony.28Sb.29


Natural Tellurium competing reactions

Te-130(34%)

[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

Te-129 has an 11/2- excited state that emits a 105 keV photon when it de-excites

I-129

[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

Te-128(32%)

[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

Te-126(19%)

[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

Te-125(7%)

[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

Te-124(5%)

[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

Te-122(2.5%)

[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

Te-123(1%)

[math]\gamma + Te-123 \rightarrow Sb-122+ p ( 2day half life) \rightarrow Te-122+ \beta^- ( 2day half life)[/math]

[math]\gamma + Te-123 \rightarrow Te-122 + n [/math]


Te-122 is stable

I-127

9 hour half life to produce it makes this nuclide ignorable

TF_Antimony#Tellurium.28Te.29_to_Antimony.28Sb.29