| Autore/i: | S. Pioli | ||||
| Titolo: | Advanced beam protection systems for high-brightness electron-beam and linac-based Compton sources | ||||
| Numero: | INFN -19-07/LNF | ||||
| Data: | 18-04-2019 | ||||
| PACS: | |||||
| Pubblicato su: | |||||
| PDF file: | INFN-19-07-LNF.pdf | ||||
| URL: | |||||
| Abstract: | The Gamma Beam System (GBS), within the ELI-NP project, under installation in Magurele (RO) by INFN, as part of EuroGammas association, can provide gamma rays that open new possibilities for nuclear photonics and nuclear physics. ELI-GBS gamma rays are produced by Compton backscattering to get monochromaticity (0,1 % bandwidth), high flux (1013 photon/s), tunable directions and energies up to 19 MeV. Such gamma beam is obtained when a high-intensity laser collides a high-brightness electron beam with a repetition rate of 100 Hz in multi-bunch mode with trains of 32 bunches. An advanced high reliability and availability Machine Protection System, compliant with IEC-61508 Functional Safety regulation, has been developed in order to ensure proper automated operation for this challenging facility. Such system operates on different layers of the control system: it is equipped with an EPICS supervisor for on-line monitoring of all subsystems, different beam loss monitors to verify electron beam transport and gamma beam luminosity, a real-time interlock system based on distributed FPGA over EtherCAT to monitor vacuum and RF systems which requires fast response within next RF pulse. |
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