Beam Identi cation Unit in BRISOL

The beam identi cation unit are developed in China Institute of Atomic Energy for Beijing Radioactive Ion-beam Facilities Isotope Separator On-Line (BRISOL), that has been constructed with arming to generate short life radioactive ion beam (RIB) 30  300 keV/104  1011 Particle/s on-line to be used in science research about astrophysics, nuclear structures and materials after separated. The device could shift the radioactive spot from beam line to the position in front of detectors, and obtain the spectrum of radiation and the intensity of beam. The prototype of the unit has been tested and installed on the beam line. In the firrst commissioning the nuclide 38K+ has been identi ed with beam current about 105 particle/s.