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TY - CONF AU - Segui, L. AU - Alves, H. AU - Aune, S. AU - Beltramelli, J. AU - Bertrand, Q. AU - Combet, M. AU - Dano-Daguze, A. AU - Desforge, D. AU - Dolenc Kittelmann, I. AU - Gougnaud, F. AU - Joannem, T.J. AU - Kebbiri, M. AU - Lahonde-Hamdoun, C. AU - Le Bourlout, P. AU - Legou, Ph. AU - Maillard, O. AU - Marcel, A. AU - Mariette, Y. AU - Marroncle, J. AU - Nadot, V. AU - Papaevangelou, T. AU - Shea, T.J. AU - Tsiledakis, G. ED - Schaa, Volker RW ED - Jansson, Andreas ED - Shea, Thomas ED - Olander, Johan TI - Characterization and First Beam Loss Detection with One ESS-nBLM System Detector J2 - Proc. of IBIC2019, Malmö, Sweden, 08-12 September 2019 CY - Malmö, Sweden T2 - International Beam Instrumentation Conferenc T3 - 8 LA - english AB - The monitoring of losses is crucial in any accelerator. In the new high intensity hadron facilities even low energy beam can damage or activate the materials so the detection of small losses in this region is very important. A new type of neutron beam loss monitor has been developed specifically targeting this region, where only neutrons and photons can be produced and where typical BLM, based on charged particle detection, could not be appropriate because of the photon background due to the RF cavities. The BLM proposed is based on gaseous Micromegas detectors, designed to be sensitive to fast neutrons and with little sensitivity to photons. Development of the detectors presented here has been done to fulfil the requirements of ESS and they will be part of the ESS-BI systems. The detector has been presented in previous editions of the conference. Here we focus on the neutron/gamma rejection with the final FEE and in the first operation of one of the modules in a beam during the commissioning of LINAC4 (CERN) with the detection of provoked losses and their clear separation from RF gammas. The ESS-nBLM system is presented in this conference in a separate contribution. PB - JACoW Publishing CP - Geneva, Switzerland SP - 29 EP - 35 KW - neutron KW - detector KW - linac KW - operation KW - proton DA - 2019/11 PY - 2019 SN - 2673-5350 SN - 978-3-95450-204-2 DO - doi:10.18429/JACoW-IBIC2019-MOBO04 UR - http://jacow.org/ibic2019/papers/mobo04.pdf ER -