CMS Phase 2 Tracker, Service Channels and Services
Filenius, Axel (2018)
Metropolia Ammattikorkeakoulu
2018
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2018052510345
https://urn.fi/URN:NBN:fi:amk-2018052510345
Tiivistelmä
The objective of this Bachelor’s thesis was to study and design the CMS Phase 2 Tracker services and service channels. The Tracker will receive an update on 2025 and due to this it is necessary to redesign the services and their ideology as whole.
The study was carried out as follows. Firstly, the old Tracker service design was examined and studied to find out what ideas could be reused and what should be avoided. Secondly, many preliminary designs were made to sort out the benefits of different ideas and to see which design would be a good baseline to start building on. Thirdly, a complete service distribution was carried out based on the design idea that was chosen as the baseline. Fourthly, a 3D model representation of the distribution was created to study possible conflicts with other areas of the CMS detector. Fifthly, a new space distribution for CMS barrel and CMS endcaps was proposed due to discovering that the space currently allocated for the services is not large enough. Sixthly, simulations were made to study the environmental aspects of the services to find out suitable materials for service channels that will be constraining all of the services. Finally, simulation results were examined, and proposals were made for further studies. The study will be continued in September 2018 and will be constantly evolving until the Phase 2 Tracker update has been finished.
The studies conducted for this thesis helped in the development of the Phase 2 Tracker, and the results so far have been helpful for the project as whole. It is not possible to determine yet if the distribution and 3D designs made now will remain as they are. Most likely changes need to be made due to more elements being added, or some elements being removed or changed. In conclusion the thesis proved to be meaningful, but the study still needs to be continued as the Phase 2 Tracker upgrade evolves in the upcoming years.
The study was carried out as follows. Firstly, the old Tracker service design was examined and studied to find out what ideas could be reused and what should be avoided. Secondly, many preliminary designs were made to sort out the benefits of different ideas and to see which design would be a good baseline to start building on. Thirdly, a complete service distribution was carried out based on the design idea that was chosen as the baseline. Fourthly, a 3D model representation of the distribution was created to study possible conflicts with other areas of the CMS detector. Fifthly, a new space distribution for CMS barrel and CMS endcaps was proposed due to discovering that the space currently allocated for the services is not large enough. Sixthly, simulations were made to study the environmental aspects of the services to find out suitable materials for service channels that will be constraining all of the services. Finally, simulation results were examined, and proposals were made for further studies. The study will be continued in September 2018 and will be constantly evolving until the Phase 2 Tracker update has been finished.
The studies conducted for this thesis helped in the development of the Phase 2 Tracker, and the results so far have been helpful for the project as whole. It is not possible to determine yet if the distribution and 3D designs made now will remain as they are. Most likely changes need to be made due to more elements being added, or some elements being removed or changed. In conclusion the thesis proved to be meaningful, but the study still needs to be continued as the Phase 2 Tracker upgrade evolves in the upcoming years.