<正>The experiment of 17B was performed at RIBLL in November 2004. The primary beam of 70 AMeV 22Ne was delivered by HIRFL. The primary target (Be, 3 mm in thickness) was located at T0 chamber of RIBLL. The experimental setup including RIBLL is shown in Fig.1. Three PPACs located at T1, C2 and T2 respectively were used to track, tune and monitor the secondary beam. Two plastic scintillating foils were installed at T1 and T2 for TOF measurement and one SSD at T2 for providing energy loss information (△E) of the secondary beam.