Author/Authors :
Nolden، نويسنده , , F. and Hülsmann، نويسنده , , P. and Litvinov، نويسنده , , Yu.A. and Moritz، نويسنده , , P. and Peschke، نويسنده , , Joao C. and Petri، نويسنده , , P. and Sanjari، نويسنده , , M.S. and Steck، نويسنده , , M. and Weick، نويسنده , , H. and Wu، نويسنده , , J.X. and Zang، نويسنده , , Y.D. and Zhang، نويسنده , , S.H. and Zhao، نويسنده , , T.C.، نويسنده ,
Abstract :
A resonant pick-up for the detection of heavy ion Schottky noise was built into the ESR storage ring at GSI. A similar device will be installed at the cooler storage ring CSRe at IMP. Its purpose is a significant enhancement of the signal to noise ratio of Schottky spectra. A particular application of the new system is the measurement of circulating single ions. The resonator is based on a pillbox design. It is operated at air pressure, and is electromagnetically coupled to the vacuum tube of the storage ring via a cylinder-shaped ceramic gap. The resonant frequency can be changed by inserting plunger pistons. The resonator can easily be decoupled from the storage ring, if high beam impedances become a problem. The article describes the construction, electromagnetic properties of the pick-up as well as first experiments with heavy ion beams.
