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We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Specifically, localized linear photoemission from the front facet of a tip-shaped ZrO/W(100) Schottky emitter is employed, yielding electron pulses with a spectral bandwidth of 0.6 eV and pulse durations down to 200 fs (full-width-at-half-maximum)...
We present our work on the development and characterization of a practical and robust LaB6 based cold field emitter electron source. To this end we prepared a Tantalum mounted single crystal LaB6 rod that was chemically etched, yielding an apex size of 2μm. The obtained tip is loaded into a ultra high vacuum chamber for pulsed emission in the μs regime, using extraction voltage pulsing. Further processing...
We describe the fabrication process for an anode of a miniaturized transmission electron microscope. The anode consists of a very thin membrane (membrane-anode) that encloses the electron optics microsystem and it is used to separate the high vacuum part from the sample chamber in the microscope. The membrane-anode is made of Si3N4 layer deposited on an oxidized silicon substrate and was fabricated...
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