Altegoer, J. et al. (1999) The trigger system of the NOMAD experiment. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 428 (2-3). pp. 299-316. ISSN 0168-9002 (doi:10.1016/S0168-9002(99)00176-X)
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Publisher's URL: http://dx.doi.org/10.1016/S0168-9002(99)00176-X
The NOMAD trigger system is described in the present paper. It is made up of a large area plastic scintillator veto system, two trigger scintillator planes inside a 0.4 T magnetic field and their associated trigger electronics. Special features of the system consist of the use of proximity mesh photomultipliers which allow the trigger scintillators to operate in the magnetic field, and the use of custom-built VME modules which perform the trigger logic decisions, the signal synchronisation and gate generation, event counting and livetime calculations. This paper also includes a description of each of the NOMAD triggers, with their calculated and measured rates, efficiencies and livetimes.
|Glasgow Author(s) Enlighten ID:||Soler, Prof Paul|
|Authors:||Altegoer, J., Andrle, J., Boyd, S., Cardini, A., Farthouat, P., Ferrari, R., Geppert, D., Gößling, C., Huta, W., Hyett, N., Koch, N., Lanza, A., Long, J., Moorhead, G.F., Pollmann, D., Poulsen, C., Rubbia, A., Schmidt, B., Soler, F.J.P., Steele, D., Varvell, K.E., Weiße, T., Winton, L.J., Yabsley, B.D., and Voullieme, A.|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|