Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5467628 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2017 | 5 Pages |
Abstract
Lithium fluoride single crystals were successfully used for fluorescent imaging of single tracks of alpha particles. This was realized with a standard wide-field fluorescent microscope equipped with a 100Ã objective. Alpha particles create F2 and F3+ color centers in LiF crystals. The subsequent illumination with the blue light (wavelength around 445Â nm), excites these centers and produces fluorescence with a broad band peaked at 670Â nm. The observed tracks of alpha particles have diameter of about 500Â nm. Focusing of the microscope at different depths in a LiF crystal, enables imaging changes of shape and position of tracks, allowing for visualization of their paths. These encouraging results are the first step towards practical application of LiF as fluorescent nuclear track detectors.
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Authors
P. Bilski, B. Marczewska,