Towards on-the-fly X-ray fluorescence mapping in the soft X-ray regime

The possibility of fast X-ray fluorescence (XRF) imaging using on-the-fly acquisition is very attractive due to its high acquisition speed. The underlying assumption is that there must be a meaningful flux of XRF emitted photons collected by the detectors. On-the-fly XRF has already been demonstrated at mid-to-high X-ray energies, both for laboratory and synchrotron-based instruments. In this manuscript, we report on the capability of DANTE digital pulse processor (DPP) in the soft X-ray regime. DANTE is a novel compact and low-power DPP with high energy resolution and high count rate. This work presents preliminary measurements performed at the TwinMic beamline at Elettra synchrotron (Trieste, Italy) addressing the feasibility of on-the-fly low energy XRF imaging.