Difference between revisions of "Conversion TDC to Energy"

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<math>t_n</math>: Neutron time of flight
 
<math>t_n</math>: Neutron time of flight
  
t_{\gamma}: Gamma time of flight
+
<math>t_{\gamma}</math>: Gamma time of flight
  
 
d: Distance between detector and target.  
 
d: Distance between detector and target.  

Revision as of 18:48, 31 October 2008

Calculation

[math]t_n[/math]: Neutron time of flight

[math]t_{\gamma}[/math]: Gamma time of flight

d: Distance between detector and target.

d for polarized case: dpol = 91.25 inches = 231.775 cm.

d for unpolarized top detector: dunpol_top=96.25 inches = 244.745 cm.

d for unpolarized side detector: dunpol_side=91.39 inches = 232.131 cm.


[math]t_n-t_{\gamma}=\frac{d}{v}-\frac{d}{c}=d(\frac{1}{v}-\frac{1}{c}[/math])

=> [math]v=\frac{1}{\frac{t_n-t_{\gamma}}{d}-\frac{1}{c}}[/math]


[math]\beta_n=\frac{v}{c}[/math]

[math]\gamma_n=\sqrt{\frac{1}{1-\beta^2}}[/math]

[math]E_{tot}=M_n\gamma_nc^2[/math]

[math]E_k=E_{tot}-M_nc^2[/math]

Data

For data go to Link below:

[1]