All wires are axial, parallel to the magnetic field and the nominal beam axis. The radii of the wire layers start at 4.73 cm and run to 7.23 cm. The azimuths of the wires are stepped by half a wire spacing from each layer to the next. The length of the wires is 25 cm. The maximum drift distance for the average tube is 0.29 cm.
All wires are axial.
The radii of the sense wire layers increase from 8.47 cm to 16.03 cm. In each sequence of five layers the azimuths of the sense wires are stepped by half a wire spacing from each layer to the next. The length of the wires is 35 cm. The maximum drift distance for the average cell is 0.49 cm. At the inner radius of the first layer of cells and the outer radius of the tenth layer of cells, the cell boundary is formed by a layer of cathode strips arranged as hoops.