Fluorescent detection of single tracks of alpha particles using lithium fluoride crystals

被引：39

作者：

Bilski, P. ^{[1
]}

Marczewska, B. ^{[1
]}

机构：

[1] Inst Nucl Phys Polish Acad Sci IFJ PAN, Radzikowskiego 152, PL-31342 Krakow, Poland

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2017年 / 392卷

关键词：

Radiation measurements; Nuclear tracks; Fluorescence; Lithium fluoride; Alpha particles; OPTICALLY STIMULATED LUMINESCENCE; HEAVY CHARGED-PARTICLES; COLOR-CENTERS; LIF CRYSTAL; PHOTOLUMINESCENCE; LIFMG; TI;

D O I：

10.1016/j.nimb.2016.12.003

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 100x objective. Alpha particles create F-2 and F-3(+) color centers in LiF crystals. The subsequent illumination with the blue light (wavelength around 445 nm), excites these centers and produces fluorescence with a broad band peaked at 670 nm. The observed tracks of alpha particles have diameter of about 500 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. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：41 / 45

页数：5

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