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Title: The Laser Calibration System of the Muon $g-2$ Experiment at Fermilab

Abstract

The Muon $g-2$ experiment, E989, is currently taking data at Fermilab with the aim to improve the experimental error on the muon anomaly by a factor of four and possibly clarify 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 realized 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 performances of the Muon $g-2$ laser calibration system, showing how the experimental requirements have been met.

Authors:
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
Muon g-2
OSTI Identifier:
1546011
Report Number(s):
arXiv:1906.08432; FERMILAB-PUB-19-246-PPD
1740748
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
TBD
Additional Journal Information:
Journal Name: TBD
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Anastasi, A., and et al. The Laser Calibration System of the Muon $g-2$ Experiment at Fermilab. United States: N. p., 2019. Web.
Anastasi, A., & et al. The Laser Calibration System of the Muon $g-2$ Experiment at Fermilab. United States.
Anastasi, A., and et al. Wed . "The Laser Calibration System of the Muon $g-2$ Experiment at Fermilab". United States. https://www.osti.gov/servlets/purl/1546011.
@article{osti_1546011,
title = {The Laser Calibration System of the Muon $g-2$ Experiment at Fermilab},
author = {Anastasi, A. and et al.},
abstractNote = {The Muon $g-2$ experiment, E989, is currently taking data at Fermilab with the aim to improve the experimental error on the muon anomaly by a factor of four and possibly clarify 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 realized 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 performances of the Muon $g-2$ laser calibration system, showing how the experimental requirements have been met.},
doi = {},
journal = {TBD},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}