Abstract
The main goal of the KLOE experiment at the Frascati DAΦNE φ - factory is the study CP violation in kaon decays. The tracking device of the experiment is a drift chamber whose dimensions, 4 m of diameter and 3.3 m length, provide a large acceptance volume for the decay products of low momentum KL (λL = 3.4 m). A complete stereo geometry with 12.582 cells arranged in 58 layers guarantees a high and uniform efficiency in the reconstruction of the charged KL decays. Very light materials have been chosen both for the drift medium, a helium-based gas mixture, and for the mechanical structure, made of carbon fiber, to minimize multiple scattering and conversion of low-energy photons. The design requirements, the adopted solutions together with the calibration procedure and the tracking performances of the drift chamber are discussed.
Original language | English |
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Pages (from-to) | 138-141 |
Number of pages | 4 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 478 |
Issue number | 1-2 |
DOIs | |
State | Published - 1 Feb 2002 |
Event | 9th International Conference on Instrumentation - Vienna, Austria Duration: 19 Feb 2001 → 23 Feb 2001 |
Keywords
- Drift chamber
- Resolution
- Tracking
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation