Details

Autor(en) / Beteiligte

• Acker, A.
• Attié, D.
• Aune, S.
• Ball, J.
• Baron, P.
• Bertrand, Q.
• Besin, D.
• Bey, T.
• Bossù, F.
• Boudouin, R.
• Boyer, M.
• Christiaens, G.
• Contrepois, P.
• Defurne, M.
• Delagnes, E.
• Garçon, M.
• Georges, F.
• Giraud, J.
• Granelli, R.
• Grouas, N.
• Lahonde-Hamdoun, C.
• Lerch, T.
• Mandjavidze, I.
• Meunier, O.
• Moudden, Y.
• Procureur, S.
• Riallot, M.
• Sabatié, F.
• Vandenbroucke, M.
• Virique, E.

Titel

The CLAS12 Micromegas Vertex Tracker

Ist Teil von

• Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2020-03, Vol.957 (C), p.163423, Article 163423

Ort / Verlag

United States: Elsevier B.V

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The Micromegas Vertex Tracker was designed to improve upon the tracking capabilities of the baseline design of the CLAS12 spectrometer in Hall B at Jefferson Laboratory. A Barrel Micromegas Tracker made with six concentric cylinders, each made of three 120∘-sector tiles, surrounds the Silicon Vertex Tracker, and a Forward Micromegas Tracker composed of 6 disks is placed 30 cm downstream of the liquid-hydrogen target. Both trackers sit in a 5 T solenoid magnetic field. All Micromegas elements are based on resistive technology to withstand luminosities up to 1035 cm−2 s−1, as well as on bulk technology to enforce gain uniformity and mechanical robustness. Due to the high magnetic field, dedicated electronics have been designed and displaced ∼2 m away from the detectors. The electronics readout is based on the DREAM ASICs that allow sustained operation up to 20 kHz trigger rate at the maximum luminosity.