Hard X-ray generation using femtosecond irradiation of PbO glass
Hard X-ray generation using femtosecond irradiation of PbO glass
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DOI：
10.1016/j.jnoncrysol.2008.09.013
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发表时间：
2008-12-15
影响因子：
3.5
通讯作者：
Misawa, Hiroaki
中科院分区：
文献类型：
--
作者：
Hatanaka, Koji;Yomogihata, Ken-ichiro;Misawa, Hiroaki
我们已经产生了硬X射线的正面和背面的飞秒激光照射富铅玻璃。玻璃的实际铅含量证实了铅M线发射强度的不确定性小于20%。元素K和As在几个摩尔%的浓度被检测到。通过背面照射产生X射线有助于避免空气击穿;然而，自聚焦和反射限制了可实现的光强度和X射线产生的有效性。讨论了玻璃正面和背面产生X射线的特性和机理。(C)2008 Elsevier B. V.保留所有权利。
We have generated hard X-rays by front- and back-side femtosecond laser irradiation of PbO-rich glass. The actual Pb content of glasses was corroborated by Pb M-line emission intensities with an uncertainty of less than 20%. The elements K and As at concentrations of a few mol% were detected. X-ray generation by back-side irradiation helped to avoid an air breakdown; however, self-focusing and filamentation limited the achievable light intensity and effectiveness of X-ray generation. Characteristics and mechanisms of X-ray generation from the front- and back-side of glasses are discussed. (C) 2008 Elsevier B.V. All rights reserved.