Difference between revisions of "Theory for the Szilard-Chalmers Reaction"

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In 1934 L. Szilard and T. A. Chalmers showed that when Ethyliodide is irradiated with thermal neutrons, a large fraction of the radioactive nuclei created in the process will be present as free iodine atoms or iodine ions.  
 
In 1934 L. Szilard and T. A. Chalmers showed that when Ethyliodide is irradiated with thermal neutrons, a large fraction of the radioactive nuclei created in the process will be present as free iodine atoms or iodine ions.  
  
The bond breakage can typically lead to the following reacions:
+
The bond breakage can typically lead to the following reacions:  
  
'''''<math>1) \quad C_2H_5 \, ^{127}\!I + ^{128}\!I \rightarrow
+
'''''<b>Failed to parse (syntax error): 1) \quad C_2H_5 \, ^{127}\!I + ^{128}\!I \rightarrow C_2H_5 \cdot + ^{127}\!I \cdot + ^{128}\!I \cdot \\</b>'''''  
C_2H_5 \cdot + ^{127}\!I \cdot + ^{128}\!I \cdot \\</math>'''''  
+
 
 +
'''''''<math>1) \quad C_2H_5 \, ^{127}\!I + ^{128}\!I
 +
\rightarrow C_2H_5 \cdot + ^{127}\!I \cdot + ^{128}\!I \cdot</math>
  
 
'''''<math>2) \quad ^{127}\!I \cdot + ^{128}\!I \cdot \rightarrow
 
'''''<math>2) \quad ^{127}\!I \cdot + ^{128}\!I \cdot \rightarrow
 
^{127}\!I ^{128}\!I</math>'''''
 
^{127}\!I ^{128}\!I</math>'''''

Revision as of 14:28, 14 November 2012

As is shown in the discussion of recoil energies in thermal n-capture reactions, chemical bounds can be broken due the recoil energy caused by the prompt γ-emission. This will lead to the creation of free radicals, which is very reactive. Therefore, a long list of new componds can be formed during n capture.

In 1934 L. Szilard and T. A. Chalmers showed that when Ethyliodide is irradiated with thermal neutrons, a large fraction of the radioactive nuclei created in the process will be present as free iodine atoms or iodine ions.

The bond breakage can typically lead to the following reacions:

Failed to parse (syntax error): 1) \quad C_2H_5 \, ^{127}\!I + ^{128}\!I \rightarrow C_2H_5 \cdot + ^{127}\!I \cdot + ^{128}\!I \cdot \\

''[math]1) \quad C_2H_5 \, ^{127}\!I + ^{128}\!I \rightarrow C_2H_5 \cdot + ^{127}\!I \cdot + ^{128}\!I \cdot[/math]

[math]2) \quad ^{127}\!I \cdot + ^{128}\!I \cdot \rightarrow ^{127}\!I ^{128}\!I[/math]