| Article | |
| Title | Demonstration of non-local crystal shadowing at the CERN SPS |
| Author(s) | Velotti, F M (CERN) ; Fraser, M (CERN) ; Sota, P A Arrutia (CERN) ; Calviani, M (CERN) ; Di Castro, M (CERN) ; Cettour Cave, S (CERN) ; Donze, M (CERN) ; Esposito, L S (CERN) ; Goddard, B (CERN) ; Kain, V (CERN) ; Matheson, E (CERN) ; Solis Paiva, S A (CERN) ; Seidenbinder, R (CERN) |
| Publication | 2023 |
| Number of pages | 4 |
| In: | JACoW IPAC 2023 (2023) MOPA098 |
| In: | 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA098 |
| DOI | 10.18429/JACoW-IPAC2023-MOPA098 |
| Subject category | Accelerators and Storage Rings |
| Abstract | The main SPS users are the experiments installed in North experimental Area (NA) which are served with a continuous 4.8 s long spill of protons and heavy ions. A third-integer resonant slow extraction is used to provide a uniform, long spill. Such a technique comes at the cost of particles directly hitting the electrostatic septumwires and activating the surrounding of the extraction channel. In recent years, silicon bent crystals have been exploited to shadowthe wires of the septum blade and reduce the beam induced activation.It was then demonstrated the experimental success of local shadowing inthe SPS and a way to further reduce losses with a non-local installation of the crystal. After the last yearly stop, a new Si bent crystal was installed in LSS4 of the SPS. In this paper, the first results from measurements with beam are reported together with limitations and possible upgrades of the present installation. |
| Copyright/License | CC-BY-4.0 |
Corresponding record in: Inspire
ჩანაწერი შექმნილია 2024-01-10, ბოლოს შესწორებულია 2024-01-10
