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2 results on '"Meo P. Di"'

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

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2. The laser control of the muon g −2 experiment at Fermilab

Author

G. Corradi, A. Lusiani, Marin Karuza, S.B. Dabagov, J. Kaspar, D. W. Hertzog, A. Boiano, G. Di Sciascio, Claudio Ferrari, Fabrizio Marignetti, O. Escalante, Franco Bedeschi, C. Gabbanini, A. Nath, Saverio Avino, S. Mastroianni, A. Fioretti, R. Di Stefano, L. Santi, A. Anastasi, A. Anastasio, M. Incagli, Dariush Hampai, M. Iacovacci, A. Driutti, M. W. Smith, S. Ceravolo, G. Venanzoni, A.T. Fienberg, G. Piacentino, A. Basti, P. Di Meo, A. Gioiosa, G. Pauletta, N. Raha, Gianluca Gagliardi, Giovanni Cantatore, D. Cauz, D. Moricciani, Anastasi, A., Anastasio, A., Avino, S., Basti, A., Bedeschi, F., Boiano, A., Cantatore, G., Cauz, D., Ceravolo, S., Corradi, G., Dabagov, S., Meo, P. Di, Driutti, A., Sciascio, G. Di, Stefano, R. Di, Escalante, O., Ferrari, C., Fienberg, A. T., Fioretti, A., Gabbanini, C., Gagliardi, G., Gioiosa, A., Hampai, D., Hertzog, D. W., Iacovacci, M., Incagli, M., Karuza, M., Kaspar, J., Lusiani, A., Marignetti, F., Mastroianni, S., Moricciani, D., Nath, A., Pauletta, G., Piacentino, G. M., Raha, N., Santi, L., Smith, M. W., Venanzoni, G., Di Meo, P., Di Sciascio, G., Di Stefano, R., and Nath, Atanu

Subjects
Physics::Instrumentation and Detectors, muon beam, 01 natural sciences, law.invention, Data acquisition, Optics, muon, laser, control systems, Instrumentation, laser,optics, calorimetry, muon beam, law, muon, 0103 physical sciences, Calibration, CALIBRATION SYSTEM, Fermilab, 010306 general physics, control systems, Mathematical Physics, Trigger concepts and system, Physics, (hardware and software), Trigger algorithm, Millisecond, Muon, Anomalous magnetic dipole moment, Control and monitor systems online, 010308 nuclear & particles physics, business.industry, Control and monitor systems online, Trigger concepts and systems (hardware and software), Trigger algorithms, Detector, PHYSICS OF ELEMENTARY PARTICLES AND FIELDS, Laser Calibration, FPGA, Trigger algorithms, Laser, optics, laser, Trigger concepts and systems (hardware and software), High Energy Physics::Experiment, Trigger concepts and systems (hardware andsoftware), business, calorimetry
Abstract

The Muon g - 2 Experiment at Fermilab is expected to start data taking in 2017. It will measure the muon anomalous magnetic moment, a mu = (g mu - 2)/2 to an unprecedented precision: the goal is 0.14 parts per million (ppm). The new experiment will require upgrades of detectors, electronics and data acquisition equipment to handle the much higher data volumes and slightly higher instantaneous rates. In particular, it will require a continuous monitoring and state- of- art calibration of the detectors, whose response may vary on both the millisecond and hour long timescale. The calibration system is composed of six laser sources and a light distribution system will provide short light pulses directly into each crystal (54) of the 24 calorimeters which measure energy and arrival time of the decay positrons. A Laser Control board will manage the interface between the experiment and the laser source, allowing the generation of light pulses according to specific needs including detector calibration, study of detector performance in running conditions, evaluation of DAQ performance. Here we present and discuss the main features of the Laser Control board.

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