Performance of the AFS vertex detector at the CERN ISR

Conference · Tue Apr 28 04:00:00 EDT 1981

OSTI ID:6018125

Botner, O; Burkert, V; Cockerill, D

The central detector of the Axial Field Spectrometer (AFS) is a cylindrical drift chamber using a bicycle-wheel geometry. Its design has been optimized for jet-like events with high track densities. This is accomplished through a high degree of azimuthal segmentation (4/sup 0/ sectors) with up to 42 space points per track, using measurements of drift time and charge division. Particle identification in the non-relativistic region is obtained by (dE/dx) sampling. The detector is operated in an inhomogeneous magnetic field at event rates of typically 5 x 10/sup 5/ collisions per second. Preliminary results will be presented on the detector performance achieved after one year of operation at the ISR.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• OSTI ID: 6018125
• Report Number(s): BNL-30196; CONF-810351-6; ON: DE82002824
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
CERN ISR
CONFIGURATION
CYLINDRICAL CONFIGURATION
DATA
DRIFT CHAMBERS
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
NUMERICAL DATA
PARTICLE IDENTIFICATION
PERFORMANCE
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RESOLUTION
SPECIFICATIONS
STORAGE RINGS