Cylindrical Drift Chamber

Current design (being optimised):

• all-stereo wire configuration (based on KLOE CDC)
• 20 sense layers
• about 20,000 wires in total
• at 50 g tension

• Square cells

• 16.8 mm (w) × 16.0 mm (h)

• Anode wires:

• ø30 micron Gold-plated Tungsten
• HV at +1.7 kV

• Field wires:

• ø80 micron Aluminium
• at ground

• He : Isobutane (90 : 10)