Control and measurement system for positron experiments at the ETL linac facility

A control and measurement system for positron experiments in the Electrotechnical Laboratory (ETL) slow positron facility has been developed. The system acquires both monitor signals from the ETL electron linac and time spectrum data from the positron experimental apparatus. Furthermore, this system enables us to control both the linac and positron experimental apparatus remotely and semi-automatically. Using this system we can perform positron lifetime measurements as well as positron annihilation-induced-Auger electron spectroscopy with an intense pulsed positron beam with minimum labor.