1. The laser-based gain monitoring system of the calorimeters in the Muon g −2 experiment at Fermilab
- Author
-
S.B. Dabagov, A. Chapelain, S. Di Falco, G. Di Sciascio, M. Incagli, A. Boiano, A. Lusiani, D. Cauz, Dariush Hampai, L. K. Gibbons, J.B. Hempstead, G. M. Piacentino, A. Fioretti, A. Anastasi, E. Bottalico, N. Raha, D. W. Hertzog, G. Venanzoni, A.T. Fienberg, R. Di Stefano, Fabrizio Marignetti, C. Gabbanini, Claudio Ferrari, A. Nath, F. Bedeschi, G. Pauletta, K. S. Khaw, S. Mastroianni, G. Corradi, M. Iacovacci, M. W. Smith, Marin Karuza, A. Gioiosa, S. Donati, S. Miozzi, A. Basti, A. Driutti, M. Sorbara, P. Girotti, D.A. Sweigart, Giovanni Cantatore, P. Di Meo, L. Santi, J. Kaspar, Anastasi, A., Basti, A., Bedeschi, F., Boiano, A., Bottalico, E., Cantatore, G., Cauz, D., Chapelain, A. T., Corradi, G., Dabagov, S., Falco, S. D., Meo, P. D., Sciascio, G. D., Stefano, R. D., Donati, S., Driutti, A., Ferrari, C., Fienberg, A. T., Fioretti, A., Gabbanini, C., Gibbons, L. K., Gioiosa, A., Girotti, P., Hampai, D., Hempstead, J. B., Hertzog, D. W., Iacovacci, M., Incagli, M., Karuza, M., Kaspar, J., Khaw, K. S., Lusiani, A., Marignetti, F., Mastroianni, S., Miozzi, S., Nath, A., Pauletta, G., Piacentino, G. M., Raha, N., Santi, L., Smith, M., Sorbara, M., Sweigart, D. A., Venanzoni, G., Falco, S. Di, Meo, P. Di, Sciascio, G. Di, and Stefano, R. Di
- Subjects
sources ,Physics - Instrumentation and Detectors ,Physics::Instrumentation and Detectors ,Detector alignment and calibration methods (lasers, sources, particle-beams) ,FOS: Physical sciences ,01 natural sciences ,030218 nuclear medicine & medical imaging ,law.invention ,High Energy Physics - Experiment ,Nuclear physics ,03 medical and health sciences ,Calorimeters ,High Energy Physics - Experiment (hep-ex) ,0302 clinical medicine ,law ,0103 physical sciences ,Calibration ,Fermilab ,Instrumentation ,Mathematical Physics ,Physics ,Calorimeter ,Muon ,010308 nuclear & particles physics ,Anomaly (natural sciences) ,Monitoring system ,particle-beams) ,Instrumentation and Detectors (physics.ins-det) ,Laser ,muon g-2 ,3. Good health ,Detector alignment and calibration methods (lasers ,High Energy Physics::Experiment ,Order of magnitude - Abstract
The Muon $g-2$ experiment, E989, is currently taking data at Fermilab with the aim of reducing the experimental error on the muon anomaly by a factor of four and possibly clarifying the current discrepancy with the theoretical prediction. A central component of this four-fold improvement in precision is the laser calibration system of the calorimeters, which has to monitor the gain variations of the photo-sensors with a 0.04\% precision on the short-term ($\sim 1\,$ms). This is about one order of magnitude better than what has ever been achieved for the calibration of a particle physics calorimeter. The system is designed to monitor also long-term gain variations, mostly due to temperature effects, with a precision below the per mille level. This article reviews the design, the implementation and the performance of the Muon $g-2$ laser calibration system, showing how the experimental requirements have been met., 33 pages,24 figures. Matches the published version
- Full Text
- View/download PDF