COMMISSIONING OF THE DETECTION SYSTEM FOR A SUPERSONIC GAS-JETS BASED TRANSVERSE BEAM PROFILE MONITOR*

We present the commissioning results of the MicroChannel-Plate (MCP) based, ion extraction and detection system currently in use for an experimental test stand aimed at demonstrating the operation of a leastinterceptive transverse beam profile monitor based on a planar supersonic gas jet. This monitoring design features least-interceptive operation under excellent vacuum conditions and provides fast acquisition of a bidimensional transverse profile. It bears application for ultra-low energy particle beams at future storage rings, but also for e.g. linacs at high currents and light source injectors. For instance, the Ultra-low energy Storage Ring (USR), part of the Facility for Antiproton and Ion Research (FAIR) in Germany will store antiprotons at energies of 20-300 keV. In this contribution, we report numerical simulations and experimental results obtained by calibration of the detection system with a low energy electron beam to demonstrate a 1 mm imaging resolution only limited by recoiling ion drift.