DESIGN OF SLOW EXTRACTION FOR HIRFL-CSR

The new national key project HIRFL-CSR(1-2) is an extending project of present HIRFL (Heavy Ion Research Facility of Lanzhou) project, which consists of two cooler storage rings (CSR). The slow extraction of beam from CSR main ring(CSRm) is described in this paper. Both fast and slow extraction will be arranged in the same passage. Third integer resonant scheme is adopted in slow extraction to obtain smooth extracted beam in about 1 second.