ION BEAM SAMPLE PREPARATION APPARATUS AND METHODS
Disclosed are embodiments of an ion beam sample preparation apparatus and methods for using the embodiments. The apparatus comprises an ion beam irradiating means in a vacuum chamber that may direct ions toward a sample, a shield blocking a portion of the ions directed toward the sample, and a shield retention stage with shield retention means that replaceably and removably holds the shield in a position. Complementary datum features on both shield and shield retention stage enable accurate and repeatable positioning of the sample in the apparatus for sample processing and reprocessing. A retention stage lifting means allows the creation of a loading chamber that is isolated from the main vacuum chamber where sample ion beam milling takes place. A heat sink means is configured to conduct heat away from the sample undergoing sample preparation in the ion beam.