Feasibility assessment and design of an electron microscope at kahvelab

This thesis details modifications to the prototype Electron Beam Welding (EBW) setup at KAHVELab, focusing on integrating a photomultiplier tube (PMT) and scintillator into a high vacuum environment for electron beam imaging via a DAQ system. Investigations covered electron interactions, vacuum systems, and beam diagnostics. Although attempts to achieve secondary electron (SE) imaging did not meet initial goals, the successful detection of cathodoluminescence (CL) emitted from the resin represents progress by confirming the successful integration of the detector setup. Improved imaging is achievable with further enhancements. These findings demonstrate the potential of CL and SE imaging in electron beam applications and pave the way for further development of both CL and SE imaging techniques. Notably, upcoming modifications to the detector setup, including transitioning towards an Everhart-Thornley detector, as detailed in the thesis, are intended to enable effective SE imaging. Additionally, replacements in the target positioning system and the integration of control units are projected to improve imaging precision by increasing accuracy across the system.