The development of a laser photoelectron projection microscope with a
magnification up to 10(5) and spatial resolution up to 30 nm as well a
s the first results of studies of needle tips made of LiF crystals wit
h F-2-aggregated centers with the use of this microscope are reported.
The resolution achieved was sufficient to visualize individual defect
s on the crystals surface. The effects of thermal faceting of LiF:F-2(
-) needle tips due to their heating by intense laser radiation were ob
served for the first time.