Difference between revisions of "Geometry (44 Mev LINAC exit port)"

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=Beam displacement=
 
=Beam displacement=
<math>\delta = 285.75cm\ *\ \tan(0.67^o) = 3.34cm</math><br><br>
+
<math>\Delta = 285.75cm\ *\ \tan(0.67^o) = 3.34cm</math><br><br>
  
 
=Experimental 90 degree exit port geometry=
 
=Experimental 90 degree exit port geometry=
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=Off-axis collimation geometry=
 
=Off-axis collimation geometry=
 
[[File:beam_up_down.png]]<br><br>
 
[[File:beam_up_down.png]]<br><br>
 +
 +
=Off-axis calculation of critical angle =
 +
1) <math>\Delta = 3.34 cm \ \ \longarrow \tan^{-1}\left(\frac{m_ec^2}{E_{beam}}\right) = \frac{0.511\ MeV}{44\ MeV} = 0.67\ ^o</math><br><br>

Revision as of 06:07, 12 May 2010

Critical angle calculation

[math]\Theta = \frac{m_ec^2}{E_{beam}} = \frac{0.511\ MeV}{44\ MeV} = 0.67\ ^o[/math]

Beam displacement

[math]\Delta = 285.75cm\ *\ \tan(0.67^o) = 3.34cm[/math]

Experimental 90 degree exit port geometry

Exit port.png

Off-axis collimation geometry

Beam up down.png

Off-axis calculation of critical angle

1) [math]\Delta = 3.34 cm \ \ \longarrow \tan^{-1}\left(\frac{m_ec^2}{E_{beam}}\right) = \frac{0.511\ MeV}{44\ MeV} = 0.67\ ^o[/math]