Status of the design of a Wide Band beam Current Monitor (WBCM) for EUROTeV

In the framework of EUROTeV, the conceptual design of a new wide band wall current monitor is being carried out. The design is based on the wall current monitors presently installed in CTF3. The new design aims to increase the bandwidth up to 20 GHz. The present device has been tested in a dedicated test bench to understand its limitations in terms of bandwidth. The tests with the present device and the results of the conceptual design for the new one are summarized and discussed in this report.