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Re-annealing of cryocooled crystals greatly enhanced diffraction quality. Identical diffraction images (Δϕ = 0.5°) were collected from a single crystal of SeMet LAG M (a) before and (b) after re-annealing the crystal by removing it from the cold nitrogen-gas cryostream, quickly sweeping it through the cryoprotectant solution and then re-cryocooling in the cryostream.
