The CEM Series KBL are open-ended sensors, i.e. the output ends are not closed. This means that the electron avalanche generated by a primary particle must be collected at the output end of the channel in order to be able to produce an output pulse. To collect the electron avalanche an anode is employed that is held in place with a ceramic support. The anode is a modified M1,6 screw so that a signal cable can be connected without difficulty.

A silver layer is deposited onto both ends of the CEM for electrical contacting of the CEM input and output ends to the applied high voltage. Through holes in these metallized contact areas screws must be placed to which electrical wires can be attached. All necessary screws are included in delivery.
Additional holes in the ceramic body permit the CEM to be mounted in any position.

The ceramic anode support is screwed on to the ceramic body and affixed tightly to the rear side of the CEM. The shape of the anode support ensures that no electrons escape from the channel output into the environment surrounding the CEM which could then ionize neutral residual gas and generate after-pulses. The gap between the output of the CEM and the anode has a width of about 0.5 mm so that they are electrically separated from one another.