Title :
Track resolution measurements for a time projection chamber with gas electron multiplier readout
Author :
Karlen, Dean ; Poffenberger, Paul ; Rosenbaum, Gabe ; Carnegie, Robert ; Dixit, Madhu ; Mes, Hans ; Sachs, Kirsten ; Martin, Jean-Pierre
Author_Institution :
Victoria Univ., BC, Canada
Abstract :
We present measurements of track resolution from two gas electron multiplier TPC prototypes under study in Canada. The results are from measurements of cosmic rays using relatively large rectangular pads that rely on diffusion to spread the charge across more than one pad per row. Results with magnet fields up to 5.3 Tesla are shown and compared to Monte Carlo simulations. This represents the first demonstration of the tracking capabilities of a GEM TPC in magnetic fields.
Keywords :
Monte Carlo methods; cosmic ray apparatus; electron multiplier detectors; particle track visualisation; time projection chambers; 5.3 T; Monte Carlo simulations; cosmic ray measurements; future linear collider; gas diffusion; gas electron multiplier readout; relatively large rectangular pads; time projection chamber; track resolution; tracking capabilities; Charge measurement; Current measurement; Electron multipliers; Ionization; Large-scale systems; Magnetic field measurement; Magnetic fields; Prototypes; Time measurement; Wire;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2003 IEEE
Print_ISBN :
0-7803-8257-9
DOI :
10.1109/NSSMIC.2003.1352099
