TY - JOUR
T1 - The CLEO III drift chamber
AU - Peterson, D.
AU - Berkelman, K.
AU - Briere, R.
AU - Chen, G.
AU - Cronin-Hennessy, D.
AU - Csorna, S.
AU - Dickson, M.
AU - Von Dombrowski, S.
AU - Ecklund, K. M.
AU - Lyon, A.
AU - Marka, Sz
AU - Meyer, T. O.
AU - Patterson, J. R.
AU - Sadoff, A.
AU - Thies, P.
AU - Thorndike, E. H.
AU - Urner, D.
N1 - Funding Information:
This work was supported by the U.S. National Science Foundation and by the U.S. Department of Energy.
PY - 2002/2/1
Y1 - 2002/2/1
N2 - The CLEO group at the Cornell Electron Storage Ring has constructed and commissioned a new central drift chamber. With 9796 cells arranged in 47 layers ranging in radius from 13.2 to 79 cm, the new drift chamber has a smaller outer radius and fewer wires than the drift chamber it replaces, but allows the CLEO tracking system to have improved momentum resolution. Reduced scattering material in the chamber gas and in the inner skin separating the drift chamber from the silicon vertex detector provides a reduction of the multiple scattering component of the momentum resolution and an extension of the usable measurement length into the silicon. Momentum resolution is further improved through quality control in wire positioning and symmetry of the electric fields in the drift cells which have provided a reduction in the spatial resolution to 88 μm (averaged over the full drift range).
AB - The CLEO group at the Cornell Electron Storage Ring has constructed and commissioned a new central drift chamber. With 9796 cells arranged in 47 layers ranging in radius from 13.2 to 79 cm, the new drift chamber has a smaller outer radius and fewer wires than the drift chamber it replaces, but allows the CLEO tracking system to have improved momentum resolution. Reduced scattering material in the chamber gas and in the inner skin separating the drift chamber from the silicon vertex detector provides a reduction of the multiple scattering component of the momentum resolution and an extension of the usable measurement length into the silicon. Momentum resolution is further improved through quality control in wire positioning and symmetry of the electric fields in the drift cells which have provided a reduction in the spatial resolution to 88 μm (averaged over the full drift range).
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U2 - 10.1016/S0168-9002(01)01737-5
DO - 10.1016/S0168-9002(01)01737-5
M3 - Conference article
AN - SCOPUS:0036475324
VL - 478
SP - 142
EP - 146
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1-2
T2 - 9th International Conference on Instrumentation
Y2 - 19 February 2001 through 23 February 2001
ER -