Control and data acquisition system for the multiple cell array detector of the TJ-II heavy ion beam diagnostic

A dedicated control and data acquisition system for the multiple cell array detector (MCAD) of the TJ-II heavy ion beam diagnostic (HIBD) has been developed, based on in-house designed VME modules and Linux. The software and hardware architecture and its implementation are described in this paper. The hardware consists of: (i) a VME host running Linux; (ii) four CFN transient recorder boards; (iii) an analogue output board; (iv) a commercial 32 bit TTL I/O M-Module mezzanine. The software for the active control of the primary and secondary beam lines has two major components: (i) a server daemon running on the VME host, receiving operation parameters and waveforms to be programmed and controlling board operation; (ii) client applications with graphical user interfaces running on the control room PC's. The software for the MCAD acquisition system consists of a daemon controlling acquisition and writing data to the TJ-II database, and a graphical application allowing easy configuration of acquisition parameters.