Author/Authors :
Danared، H. نويسنده , , H. and Kنllberg، نويسنده , , A. and Andler، نويسنده , , G. and Bagge، نويسنده , , L. and ضsterdahl، نويسنده , , F. and Paلl، نويسنده , , A. and Rensfelt، نويسنده , , K.-G. and Simonsson، نويسنده , , A. and Skeppstedt، نويسنده , , ض. and af Ugglas، نويسنده , , M.، نويسنده ,
Abstract :
The electron cooler at CRYRING is now operating with a superconducting gun solenoid and an electron beam that is adiabatically expanded with a factor of up to 100. This paper describes the new gun solenoid and electron gun. It presents measurements made on longitudinal cooling forces with different expansion factors, electron densities, magnetic field strengths and beam alignments. It also presents studies of a transverse beam instability that appears when a misalignment is introduced between ion and electron beams. Finally, some measurements of dielectronic recombination that directly yield transverse and longitudinal electron temperatures are discussed.
