Current Status of the COSY Electron Cooler (Jülich, Germany)

COSY electronic cooling is used after charge-exchange injection of H – or D – to produce the required emittance and momentum spread in the beam after the beam is accelerated. The cooled and accelerated beam is then used for experimental applications, such as, fast or slow extraction for experiments onto an external target. Methods for setting up the electronic-cooling system and limiting the ion-beam intensity are discussed.