The CLAS12 Forward Tagger

A. Acker, D. Attié, S. Aune, J. Ball, P. Baron, M. Bashkanov, M. Battaglieri*, R. Behary, F. Benmokhtar, A. Bersani, Q. Bertrand, D. Besin, T. Bey, P. Black, P. Bonneau, F. Bossù, R. Boudouin, M. Boyer, P. Campero Rojas, A. CasaleA. Celentano, R. Cereseto, A. Ciarma, F. Cipro, G. Charles, G. Christiaens, P. Contrepois, M. Cook, A. D'Angelo, R. De Vita, M. Defurne, E. Delagnes, E. Fanchini, S. Fegan, J. Fleming, A. Filippi, M. Garçon, F. Georges, K. L. Giovanetti, D. I. Glazier, R. Granelli, N. Grouas, K. Hicks, A. Hoebel, S. M. Hughes, C. Lahonde, L. Lanza, M. Leffel, T. Lerch, T. Lemon, K. Livingston, A. Manco, I. Mandjavidze, H. S. Mann, B. McKinnon, O. Meunier, R. Miller, G. Miní, Y. Mouden, P. Musico, M. Osipenko, G. Ottonello, F. Parodi, E. Pasyuk, P. Pollovio, F. Pratolongo, S. Procureur, R. Puppo, C. Rossi, M. Riallot, M. Ripani, A. Rizzo, F. Sabatié, C. Salgado, G. D. Smith, D. Sokhan, I. Stankovic, M. Taiuti, A. Trovato, M. Vandenbroucke, V. Vigo, E. Virique, D. Watts, C. Wiggins, N. Zachariou, L. Zana

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This document presents the technical layout and the performance of the CLAS12 Forward Tagger (FT). The FT, composed of an electromagnetic calorimeter based on PbWO4 crystals (FT-Cal), a scintillation hodoscope (FT-Hodo), and several layers of Micromegas trackers (FT-Trk), has been designed to detect electrons and photons scattered at polar angles from 2 to 5 and to meet the physics goals of the hadron spectroscopy program and other experiments running with the CLAS12 spectrometer in Hall B.

Original languageEnglish
Article number163475
Number of pages18
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Early online date21 Jan 2020
Publication statusPublished - 11 Apr 2020

Bibliographical note

© 2020 Published by Elsevier B.V. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.


  • APD
  • Electromagnetic calorimeter
  • Gas tracking detector
  • Hadron spectroscopy
  • Hodoscope
  • Low-Q electron scattering
  • MicroMegas
  • PbWO
  • Plastic scintillator
  • SiPM
  • WLS fibers

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