FAST DATA-ACQUISITION SYSTEM FOR THE BEAM-ENERGY-SPREAD-MONITOR

Linac Control Network PC (Linux) Energy Spread Monitor (ESM) Oscilloscope Linux / OS C++/ Python / Tkinter (GUI) Software (Oscilloscope, Data processing Fig. 1: Schematic drawing of DAQ system.It consists of a PC/Linux-based and a fast digital oscilloscope (LeCroy wavepro-950). A non-destructive beam-energy-spread monitor (ESM) using multi-stripline electrodes has been developed in order to measure and control the energy spread of a single-bunch electron beam. In the KEK injector linac, the non-destructive ESM has been installed at an 180degree arc section with a beam energy of 1.7-GeV. The data-acquisition system of ESM was developed for pulseby-pulse measurement. This system works well and is used for a daily operation. In this paper, we will present this DAQ system in detail.