Fluorescent nuclear track detectors based on LiF crystals were successfully applied for detection of proton induced tracks. Irradiations were performed with protons with energy ranging from 1 MeV up to about 56 MeV and for all proton energies the fluorescent tracks were observed. The tracks are not continuous, but consist of a series of bright spots. The gaps between spots tend to narrow with decreasing proton energy (increasing ionization density). For the highest of the studied energies, the spots are scattered so sparsely, that it is not possible to link spots belonging to one track. The intensity (brightness) of the fluorescent tracks increases with the increasing LET and agrees well with the trend established earlier for various heavier ions.

中文翻译：

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使用 LiF 荧光核径迹探测器检测质子径迹

基于LiF晶体的荧光核径迹探测器已成功应用于质子诱导径迹的探测。使用能量范围为 1 MeV 至约 56 MeV 的质子进行照射，并且对于所有质子能量都观察到荧光轨迹。轨迹不是连续的，而是由一系列亮点组成。随着质子能量的降低（电离密度的增加），斑点之间的间隙趋于变窄。对于所研究的最高能量，这些点分散得非常稀疏，以至于不可能将属于一个轨道的点连接起来。荧光轨迹的强度（亮度）随着 LET 的增加而增加，并且与之前针对各种较重离子建立的趋势非常吻合。