Improved grid holders for an all-purpose electron microscope specimen stage.
The general requirements necessary for a specimen grid holder (cup) to meet the rather stringent demands set by an all-purpose specimen stage are discussed. Two models made from platinum or aluminum are described, which provide for the grid to be either on or off the axes of tilt, and allow the cup and grid to be ultrasonically cleaned. The stability, tilt movements, anticontamination, and furnace characteristics of the cups have proved to be excellent.
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CSIRO Division of Chemical Physics, P.O. Box 160, Clayton, Victoria, Australia 3168.