Collimation geometry for different beam energies

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general setup

geometry calculation

beam energy collimator diameter [math]\displaystyle{ \Theta_{critical} }[/math] [math]\displaystyle{ \Theta_{kicker} }[/math] [math]\displaystyle{ \alpha_{collimator} }[/math] [math]\displaystyle{ AC }[/math] [math]\displaystyle{ A_1C_1 }[/math] [math]\displaystyle{ BD }[/math] [math]\displaystyle{ B_1D_1 }[/math] [math]\displaystyle{ A1D1 }[/math] [math]\displaystyle{ FA }[/math] [math]\displaystyle{ GH }[/math]
25 MeV [math]\displaystyle{ \frac{\Theta_{critical}}{2} }[/math] [math]\displaystyle{ 1.17^o }[/math] [math]\displaystyle{ 0.83^o }[/math] [math]\displaystyle{ 2.03^o }[/math] 4.13 cm 6.78 cm 2.92 cm 4.79 cm 9.18 cm > 8.73 cm 75 cm 7.49 cm > 5.08 cm
25 MeV [math]\displaystyle{ \frac{\Theta_{criicalt}}{3} }[/math] [math]\displaystyle{ 1.17^o }[/math] [math]\displaystyle{ 0.83^o }[/math] [math]\displaystyle{ 1.63^o }[/math] 4.13 cm 6.78 cm 1.95 cm 3.20 cm 8.37 cm < 8.73 cm 111 cm 4.99 cm < 5.08 cm
25 MeV [math]\displaystyle{ \frac{\Theta_{critical}}{4} }[/math] [math]\displaystyle{ 1.17^o }[/math] [math]\displaystyle{ 0.83^o }[/math] [math]\displaystyle{ 1.43^o }[/math] 4.13 cm 6.78 cm 1.46 cm 2.40 cm 7.98 cm < 8.73 cm 136 cm 3.74 cm < 5.08 cm
44 MeV [math]\displaystyle{ \frac{\Theta_{critical}}{2} }[/math] [math]\displaystyle{ 0.67^o }[/math] [math]\displaystyle{ 0.47^o }[/math] [math]\displaystyle{ 1.16^o }[/math] 2.35 cm 3.85 cm 1.66 cm 2.72 cm 5.21 cm < 8.73 cm 75 cm 4.26 cm < 5.08 cm
44 MeV [math]\displaystyle{ \frac{\Theta_{critical}}{3} }[/math] [math]\displaystyle{ 0.67^o }[/math] [math]\displaystyle{ 0.47^o }[/math] [math]\displaystyle{ 0.93^o }[/math] 2.35 cm 3.85 cm 1.11 cm 1.82 cm 4.76 cm < 8.73 cm 111 cm 2.84 cm < 5.08 cm
44 MeV [math]\displaystyle{ \frac{\Theta_{critical}}{4} }[/math] [math]\displaystyle{ 0.67^o }[/math] [math]\displaystyle{ 0.47^o }[/math] [math]\displaystyle{ 0.81^o }[/math] 2.35 cm 3.85 cm 0.83 cm 1.36 cm 4.53 cm < 8.73 cm 136 cm 2.13 cm < 5.08 cm


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