Pacey, T.H. Angal-Kalinin, D. Bainbridge, A.R. Henderson, J. Jones, J.K. Joshi, N.Y. Mathisen, S.L. Overton, T.J. Pollard, A.E. Saveliev, Y.M. Snedden, E.W. Swain, C. Tollervey, C. Walsh, D.A. Wolfenden, J. JACoW Publishing Geneva, Switzerland 2673-5350 978-3-95450-241-7 10.18429/JACoW-IBIC2022-MO1C3 English 1-5 electron diagnostics laser experiment acceleration Contribution to a conference proceedings 2022 2022-12 https://doi.org/10.18429/JACoW-IBIC2022-MO1C3 https://jacow.org/ibic2022/papers/mo1c3.pdf The FEBE beamline at the CLARA facility will combine a 250 MeV FEL quality electron beam with a 100 TW class laser. One area of research FEBE will support is novel acceleration schemes; both structure and plasma based. There are stringent diagnostic requirements for measuring the input electron beam and challenges in characterisation of the accelerated beams produced by these novel schemes. Several of these challenges include measurement of: micrometer scale transverse profiles, 10 fs scale bunch lengths, single shot emittance, broadband energy spectra at high resolution, and laser-electron time of arrival jitter. Furthermore, novel shot-by-shot non-invasive diagnostics are required for machine learning driven optimisation and feedback systems. This paper presents an overview of R&D activities in support of developing a 6D diagnostics suite to meet these challenges.