Abstract
In transmission electron microscopy (TEM), cameras are square or rectangular but beams are round so the circular lobes irradiate adjacent areas, precluding further neighboring acquisition for beam-sensitive samples. We present condenser aperture plates with square and rectangular shapes that improve the efficiency of area usage by 70% and enhance montage imaging for beam-sensitive specimens. We demonstrate the compatibility of these condenser aperture plates with high-resolution cryogenic TEM by reconstructing a 1.8-Å map of equine apo-ferritin.
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