Summary of the 3rd Session
HOM Camped Cavities, Power Couplers and 4GLS
Chairman: P. Marchand

Presentations were heard from 4GLS, Bessy, DELTA and ELETTRA.

The presentations from DELTA and Bessy gave an update on the HOM cavity, which after some minor adjustments looks likely to stay at DELTA for the foreseeable future. Two presentations were given on high power couplers showing that they can be modelled well in several software packages and that practical shows new things. And the final talk of the meeting was given on 4GLS and the ERLP (Energy Recovery Linac Prototype).