Custom Electronic Modules for the Triumf/isac Control System

The TRIUMF/ISAC Control system utilizes EPICS based on VME hardware with CANbus as the fieldbus. The Electronics Development group at TRIUMF/ISAC has previously developed VME modules [1] for the ISAC facility. This success led to development of several purpose built modules. Specifically for TITAN (TRIUMF’s Ion Trap for Atomic and Nuclear science) five VME modules were developed: a frequency generator for the RFQ cooler with an output in the range of 200kHz to 1.2MHz 1Vp-p sine wave, a gate trigger module to generate timing pulses for injection and extraction of the ion beam, a 6-channel high voltage module to provide the extraction voltages adjustable from 02000V, an 8-channel +/-40V power supply used in setting the trap DC levels, and an 8-channel 12 or 16 bit scanning ADC with a single 16bit DAC. For ISAC four CANbus modules were developed to complement the existing power supply controllers [2] and allow control and monitoring of devices not currently connected to the control system. These include magnetic field measurement with a Hall probe, water flow measurement and interlock, and laser devices and power supplies requiring RS-232 or IEEE-488. A Stepper motor controller was also developed.