Difference between revisions of "Aluminum Thickness Tests"
| Line 37: | Line 37: | ||
=Photon Physics On= | =Photon Physics On= | ||
| − | + | ====Why is tail 16 cm long?==== | |
Varying Aluminum beamstop thickness | Varying Aluminum beamstop thickness | ||
Revision as of 17:40, 17 October 2017
No Photon Physics
- Where are photons below 300 keV from
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 |  |
 |
|
| 1.5875cm (5/8") |  |
 |
|
| 1.27cm (1/2") |  |
 |
|
| 4.4485cm |  |
 |
|
| 2.22425cm |  |
 |
|
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 |  |
  |
|
| 1.5875cm (5/8") |  |
  |
200px |
| 1.27cm (1/2") |  |
  |
|
| 4.4485cm |  |
  |
|
| 2.22425cm |  |
  |
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