1. Design and development of Ionization Profile Monitor for the Cryogenic sections of the ESS Linac
- Author
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P. Le Bourlout, G. Tauzin, R. Tarkeshian, Cyrille Thomas, Caroline Lahonde-Hamdoun, F. Benedetti, Fabio Belloni, Yannick Mariette, Jacques Marroncle, G. Coulloux, J. P. Mols, Francoise Gougnaud, Victor Nadot, L. Scola, P. Abbon, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
- Subjects
Physics::Instrumentation and Detectors ,QC1-999 ,Nuclear engineering ,[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph] ,Particle beam measurements ,Electron ,Linear proton accelerators ,01 natural sciences ,7. Clean energy ,Linear particle accelerator ,law.invention ,law ,0103 physical sciences ,Neutron ,Spallation ,Strip detector ,Particle beam ,010302 applied physics ,Physics ,010308 nuclear & particles physics ,Detector ,Particle accelerator ,Beam diagnostic ,MCP ,Physics::Accelerator Physics ,Beam (structure) - Abstract
International audience; Saclay CEA/IRFU is working for the delivery of five Non-Invasive Profile Monitors in the frame of the in-kind contribution agreement signed with the European Spallation Source. Neutrons will be produced by spallation reactions of 2 GeV proton beam impinging on a Tungsten target. To accelerate protons a powerful linear accelerator of 5MW is under construction. Diagnostic devices are mandatory tools for the tuning and protection of the machine. The non-invasive profile monitors provide a measurement of the beam profile in transverse directions to the beam propagation. This project raises several physical and technical challenges including low signal detection of ions or electrons, profile distortions induced by the beam Space Charge effect and non-uniformities of electric field. Simulation and model of the critical aspects of the detector have been performed in order to prove the performance and the feasibility of the detector. A series of prototypes has been built with different readout types, and tested in real conditions at the 3MeV proton accelerator IPHI. All of them show some advantages and drawbacks revealed by the tests in real beam conditions. In this paper we present the results of the tests for the various configuration readout systems to agree with the model and simulation of the detector. In concluding remarks, we will discuss the performance of the prototypes and point out the camerabased one to be the more suitable for the final design.Key words: Beam diagnostic / Linear proton accelerators / MCP / Strip detector / Particle beam measurements
- Published
- 2019