| Article | |
| Title | Chapter 19: Injection and Beam Dump Systems |
| Author(s) | Bracco, C (CERN) ; Barnes, M J (CERN) ; Bartmann, W (CERN) ; Calviani, M (CERN) ; Perez, D Carbajo (CERN) ; Carlier, E (CERN) ; Ducimetiere, L (CERN) ; Frankl, M I (CERN) ; Goddard, B (CERN) ; Jowett, J (CERN) ; Lechner, A (CERN) ; Magnin, N (CERN) ; Marcone, A Perillo (CERN) ; Polzin, T (CERN) ; Rizzoglio, V (CERN) ; Senaj, V (CERN) ; Vega, L (CERN) ; Vlachodimitropoulos, V (CERN) ; Wiesner, C (CERN) |
| Publication | 2024 |
| Number of pages | 17 |
| In: | Adv. Ser. Direct. High Energy Phys. 31 (2024) 427-443 |
| In: | The High Luminosity Large Hadron Collider, pp.427-443 |
| DOI | 10.1142/9789811278952_0019 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | CERN LHC |
| Project | CERN HL-LHC |
| Abstract | Some of the elements of the LHC injection and extraction systems will be upgraded or replaced to adapt to the increased beam brightness and intensity of the HL-LHC beams [1; 2]. The injection main protection absorber will be replaced with new hardware which will be able to absorb and withstand 288 HL-LHC bunches in case of an injection kicker failure. The compatibility with injection of 320 bunches (four batches of 80 HL-LHC bunches [3]) was also verified. One auxiliary injection protection collimator in Point 2 will be displaced closer to the interaction point (IP) to increase the acceptance of the ALICE Zero-Degree Calorimeter. The injection kickers, which suffered already from electron cloud, degraded vacuum and beam induced heating while operating with LHC beams, will be upgraded with several modifications to mitigate these effects. The compatibility of the LHC beam dump system with the increased beam intensities of the HL-LHC beams still needs to be fully assessed. However, the dump protection devices, as well as the dump absorber block and its entrance and exit windows needs an upgrade or replacement. The studies include the definition of the possible worst failure scenarios for the extraction and dilution kickers and the consequences on the different dump elements. Finally, the extraction and dilution system will be upgraded to improve its reliability by reducing the risk of erratics, monitoring the status of the system and reacting faster in case of failures. |
| Copyright/License | © 2024 The Editor(s) (License: CC-BY-NC-4.0) |
Corresponding record in: Inspire
Записът е създаден на 2024-08-02, последна промяна на 2024-08-15
