The monitoring electronics of the laser calibration system in the Muon g-2 experiment

Year: 2019

Authors: Anastasi A.; Anastasio A.; Avino S.; Bedeschi F.; Boiano A.; Cantatore G.; Cauz D.; Ceravolo S.; Corradi G.; Dabagov S.; Di Falco S.; Di Meo S.; Donati S.; Driutti A.; Di Sciascio G.; Di Stefano R.; Escalante O.; Ferrari C.; Fioretti A.; Gabbanini C.; Gagliardi G.; Gioiosa A.; Hampai D.; Iacovacci M.; Incagli M.; Karuza M.; Lusiani A.; Marignetti F.; Mastroianni S.; Moricciani D.; Nath A.; Pauletta G.; Piacentino G. M.; Raha N.; Santi L.; Smith M. W.; Venanzoni G.

Autors Affiliation: INFN, Lab Nazl Frascati, Frascati, Italy; INFN, Sez Napoli, Naples, Italy; INFN, Sez Trieste, Trieste, Italy; INFN, GC Udine, Trieste, Italy; INFN, Sez Roma Tor Vergata, Rome, Italy; INFN, Sez Pisa, Pisa, Italy; CNR, Ist Nazl Ott, Pisa, Italy; Scuola Normale Super Pisa, Pisa, Italy; Univ Napoli Federico II, Naples, Italy; Univ Rijeka, Rijeka, Croatia; Univ Cassino, Cassino, Italy; Univ Udine, Udine, Italy; Univ Trieste, Trieste, Italy; Univ Molise, Pesche, Italy; CNR, Ist Nazl Ott, Pozzuoli, Italy

Abstract: The new Muon g-2 experiment at Fermilab (E989) will measure the muon anomaly a𝜇 = (g𝜇 -2)/2 to an uncertainty of 16 x 10−11 (0.14 ppm). The experiment is running with a positive muon beam. The decay positrons are detected by 24 electromagnetic calorimeters placed on the inner radius of the magnetic storage ring. As the gain fluctuation of each calorimeter channel must be corrected to a few parts in 104, a state-of-art laser calibration system has been realized which provides short laser pulses to the calorimeters. The monitoring of these light signals is done by specific photo-detectors read by a specialized Monitoring Electronics, which is organized in devoted crates and performs the full data acquisition of the calibration signals starting from pre-amplification, then digitization and finally transfer of the information. Here we describe few key elements of the whole system, namely the single readout channel of the Monitoring Board.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 936      Pages from: 372  to: 373

More Information: This research was supported by EU Horizon 2020 Research and Innovation Program under the Marie Sklodowska-Curie Grant Agreement No. 690385 and No. 734303.
KeyWords: Laser calibration, Calorimetry, Front-end, DAQ
DOI: 10.1016/j.nima.2018.10.128

Citations: 3
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