User name X. Zheng
Log entry time 10:50:19 on July17,2003
Entry number 104246
keyword=R-arm helicity and react_z spectrum
This is from L-arm delta scan +4% run #2373, target is multiple carbon foils (three foils are located at z=-20, 0 and 10 cm). There are some helicity +2 events (top plot). In react_z spectrum (bottom), one can clearly see the two foils at 0 and 10cm, but the upstream foil (-20cm) is not so visible.