[en] The design features of the KEDR drift chamber are described. The 1 m long and 1 m outer diameter cylindrical chamber consists of seven radial super layers. The multiwire drift cell contains six sense wires with a distance of 4.5 mm. The maximum drift distance is 30 mm. Measurements of spatial resolution and aging tests were performed using DME gas with a prototype. The resolution averaged over drift distance has a value of 40 μm. The relative gain drop is equal to 45%/(C/cm). This would correspond to 2% pulse height decrease per year at a gas gain of 10⁵ and flux of the charged particles of 1 kHz/cm². (orig.)

[en] For Υ-meson study at the VEhPP-4M the KEDR detector with the aerogel Cherenkov counters used for particle identification is developed. The aerogel thickness is 10 cm, its area in a counter is 20x20 cm. Each counter is tracked by two photo-recievers operating in strong magnetic fields. The detector contains 180 Cherenkov counters. Photo-recievers consist of a planar electorn-optical converter and a vacuum phototriode. 4 refs.; 1 fig.; 1 tab

[en] The 1 m long and 1 m outer diameter chamber consists of 42 layers. The chamber is based on a jet type cells with drift distance of 30 mm. The measurements of the spatial and dE/dx resolution were performed with DME gas with the cosmic particles. The resolution averaged over the drift distance is equal to 110 μm while dE/dx resolution is 8.2%

[en] The 1 m long and 1 m outer diameter KEDR drift chamber consists of 42 layers. The chamber is based on a jet type cell. In addition to drift time measurements, pulse height measurements will provide particle separation by dE/dx. The measurements of the spatial resolution and the effects of the end plates on resolution and aging tests were performed using prototypes filled with DME gas. The resolution averaged over the drift distance has a value of 40 μm. The relative gain drop is equal to 45 %/(C/cm). (orig.)

[en] KEDR is a general-purpose detector for experiments at the VEPP-4M e⁺e^--collider in the energy range 2E=2.0-12 GeV. All detector subsystems (except the aerogel Cherenkov counters) have been installed into the detector at VEPP-4M. Some preliminary data have been taken in the energy region of the J/Ψ meson. The tuning of the detector and the VEPP-4M collider is in progress. Preliminary results on the detector performance are presented. The future experimental program for the KEDR detector is discussed