Aluminum Thickness Tests

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No Photon Physics

Where are photons below

Varying Aluminum beamstop thickness

Tantalum thickness of 0.0508cm

All electron physics turned on

No photon physics turned on

Chamber and Tracker matter is vacuum

1 Radiation Length of Aluminum is 8.897cm

Aluminum Thickness Photon Kinetic Energy Spectrum Z Position of Photon Creation Volume of Photon Creation
8.897cm 1RadLengthAl.png OneRadLengthAl ZPos.png OneRadLengthAl Volume.png
1.5875cm (5/8") Five eighths inch Al.png Five eighths inch Al ZPos.png Five eighths inch Al Volume.png
1.27cm (1/2") Half inch Al.png Half inch Al ZPos.png Half inch Al Volume.png
4.4485cm Half Rad Length Al.png Half Rad Length Al ZPos.png Half Rad Length Al Volume.png
2.22425cm One quarter Rad Length Al.png One quarter Rad Length Al ZPos.png One quarter Rad Length Al Volume.png

Note: Volume 1 = Target, Volume 2 = Beamstop, Volume 3 = Tracker, Volume 4 = Chamber, Volume 5 = else

Conclusion

Without photon physics active and vacuum in the tracker and chamber, I cannot say whether electrons are making it though the target and beamstop.

Photon Physics On

Why is tail
16 cm long?

Varying Aluminum beamstop thickness

Tantalum thickness of 0.0508cm

All electron physics turned on

All photon physics turned on

Chamber and Tracker matter is vacuum

1 Radiation Length of Aluminum is 8.897cm

Aluminum Thickness Photon Kinetic Energy Spectrum Z Position of Photon Creation Volume of Photon Creation
8.897cm 1RadLengthAl PhotonPhysOn.png PhotonPhysOn oneRadLengthAl ZPos.png PhotonPhysOn oneRadLengthAl ZPos Grass.png PhotonPhysOn oneRadLengthAl Volume.png
1.5875cm (5/8") PhotonPhysOn five eighths inch Al.png PhotonPhysOn five eighths inch Al ZPos.png PhotonPhysOn five eighths inch Al ZPos Grass.png 200px
1.27cm (1/2") PhotonPhysOn Half inch Al.png PhotonPhysOn Half inch Al ZPos.png PhotonPhysOn Half inch Al ZPos Grass.png PhotonPhysOn Half inch Al Volume.png
4.4485cm PhotonPhysOn Half Rad Length Al.png PhotonPhysOn Half Rad Length Al ZPos.png PhotonPhysOn Half Rad Length Al ZPos Grass.png PhotonPhysOn Half Rad Length Al Volume.png
2.22425cm PhotonPhysOn one quarter Rad Length Al.png PhotonPhysOn one quarter Rad Length Al Zpos.png PhotonPhysOn one quarter Rad Length Al Zpos Grass.png 200px

Note: Volume 1 = Target, Volume 2 = Beamstop, Volume 3 = Tracker, Volume 4 = Chamber, Volume 5 = else

Conclusion

Photon Physics On with Air in Chamber and Tracker

Varying Aluminum beamstop thickness

Tantalum thickness of 0.0508cm

All electron physics turned on

All photon physics turned on

Chamber and Tracker matter is air (70% Nitrogen, 30% Oxygen)

1 Radiation Length of Aluminum is 8.897cm

Aluminum Thickness Photon Kinetic Energy Spectrum Z Position of Photon Creation Volume of Photon Creation
8.897cm 200px 200px 200px
1.5875cm (5/8") 200px 200px 200px
1.27cm (1/2") 200px 200px 200px
4.4485cm 200px 200px 200px
2.22425cm 200px 200px 200px

Note: Volume 1 = Target, Volume 2 = Beamstop, Volume 3 = Tracker, Volume 4 = Chamber, Volume 5 = else

Conclusion

TriMev Simulations

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