학술논문
The laser-based gain monitoring system of the calorimeters in the Muon $g-2$ experiment at Fermilab
Document Type
Working Paper
Author
Anastasi, A.; Basti, A.; Bedeschi, F.; Boiano, A.; Bottalico, E.; Cantatore, G.; Cauz, D.; Chapelain, A. T.; Corradi, G.; Dabagov, S.; Di Falco, S.; Di Meo, P.; Di Sciascio, G.; Di Stefano, R.; 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.
Source
JINST 14 P11025 (2019)
Subject
Language
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.
Comment: 33 pages,24 figures. Matches the published version
Comment: 33 pages,24 figures. Matches the published version