A new cylindrical drift chamber is currently under construction for the MEG II experiment. The chamber is meant to track low momentum positrons from μþ decays to search for μþ -eþ γ events. The detector is segmented in very small drift cells, placed in stereo configuration and operated in a helium–isobutane gas mixture. The use of thin aluminium wires and light gas mixture set the total radiation length of the chamber to only 1:6 103X0 per track turn allowing for a momentum resolution of $120 keV/c.
A new cylindrical drift chamber for the MEG II experiment / Baldini, A. M.; Baracchini, E.; Berretta, L.; Bianucci, S.; Cavoto, Gianluca; Chiarello, G.; Chiri, C.; Cei, F.; Corvaglia, A.; Dussoni, S.; Fahrni, D.; Galli, L.; Grancagnolo, F.; Grassi, M.; Hofer, A.; Hildebrandt, M.; Ignatov, F.; Miccoli, A.; Nicolò, D.; Orsini, A.; Panareo, M.; Pepino, A.; Pinto, C.; Piredda, G.; Signorelli, G.; Raffaelli, F.; Recchia, L.; Renga, F.; Ripiccini, Emanuele; Tassielli, G.; Tazzioli, A.; Tenchini, F.; Venturini, M.; Voena, C.; Zullo, A.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 824:(2016), pp. 589-591. [10.1016/j.nima.2015.10.103]
A new cylindrical drift chamber for the MEG II experiment
CAVOTO, GianlucaMembro del Collaboration Group
;RIPICCINI, EMANUELEMembro del Collaboration Group
;Voena, C.;
2016
Abstract
A new cylindrical drift chamber is currently under construction for the MEG II experiment. The chamber is meant to track low momentum positrons from μþ decays to search for μþ -eþ γ events. The detector is segmented in very small drift cells, placed in stereo configuration and operated in a helium–isobutane gas mixture. The use of thin aluminium wires and light gas mixture set the total radiation length of the chamber to only 1:6 103X0 per track turn allowing for a momentum resolution of $120 keV/c.| File | Dimensione | Formato | |
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