High precision experiments with muons and pions often require tracking charged particles with O(100 μm) single-hit resolution, possibly with particle identification capabilities, down to very low momenta (p ≲ 100 MeV/c). In such conditions, the particle trajectories are strongly affected by the interaction with the detector material, and the reconstruction of the kinematic observables consequently deteriorates. A good compromise between resolution and material budget can be obtained with a Time Projection Chamber (TPC), if very light gases and a high-granularity readout are used. In this paper, we present a characterization of the GridPix detector in helium-isobutane gas mixtures, within a TPC with 9 cm maximum drift. Measurements of the main electron drift properties for these gas mixtures are also presented.
Operating the GridPix detector with helium-isobutane gas mixtures for a high-precision, low-mass Time Projection Chamber / Cavoto, G.; Dutsov, C.; Gruber, M.; Hildebrandt, M.; Hume, T. D.; Kaminski, J.; Neuhaus, F.; Papa, A.; Renga, F.; Schmidt-Wellenburg, P.; Schott, M.; Vitali, B.; Voena, C.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 18:10(2023), p. P10035. [10.1088/1748-0221/18/10/P10035]
Operating the GridPix detector with helium-isobutane gas mixtures for a high-precision, low-mass Time Projection Chamber
Cavoto, G.Investigation
;Vitali, B.Membro del Collaboration Group
;Voena, C.Membro del Collaboration Group
2023
Abstract
High precision experiments with muons and pions often require tracking charged particles with O(100 μm) single-hit resolution, possibly with particle identification capabilities, down to very low momenta (p ≲ 100 MeV/c). In such conditions, the particle trajectories are strongly affected by the interaction with the detector material, and the reconstruction of the kinematic observables consequently deteriorates. A good compromise between resolution and material budget can be obtained with a Time Projection Chamber (TPC), if very light gases and a high-granularity readout are used. In this paper, we present a characterization of the GridPix detector in helium-isobutane gas mixtures, within a TPC with 9 cm maximum drift. Measurements of the main electron drift properties for these gas mixtures are also presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
