A Simple Image Intensifier Prepared for the Transport of Nano-Ampere keV Ion Beams

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  We introduce our handmade image intensifier for visualizing the beam profiles of accelerated ion beams having energy and current in the order of keV and nano-amperes, respectively. The simple image intensifier comprising stainless steel meshes and a fluorescent screen has been designed for the transport of mm-size ion beams. The intensifier is easy to install in the beamline of a vacuum setup, because it is designed to attach on a conflat flange of ICF70. We have used the image intensifier to observe the beam profiles of the ion beams transported from the ion source to an ultra-high vacuum chamber. Through the use of the image intensifier, bright images were obtained, and it was concluded that the intensifier is useful for observing the profiles of the beams having current densities greater than 0.1 nA mm−2.<br>

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