Photostimulated luminescence in alkali halides induced by excitation with ionizing radiation

Nanto, Hidehito; Endo, Fumitaka; Hirai, Yukio; Murayama, K.; Nasu, Shōichi; Taniguchi, Shin‐ichi; Nakamura, S.; Inabe, K.; Takeuchi, Nozomu

doi:10.1016/0168-583x(94)96217-0

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…It is possibly one or both of these that is being destroyed, and the phosphorescence of Cu-doped sodium chloride due to both radiation damage and the doping has been described by others. 26,27 Another possibility is suggested when considering these data in comparison with that from nantokite below. With regard to Figure 4, in the 10 min scan time of the first scan, the XEOL background signal decreases by a factor of 2.8.…”

Section: Resultsmentioning

confidence: 99%

Real Time Observation of X-ray-Induced Surface Modification Using Simultaneous XANES and XEOL-XANES

et al. 2013

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In experiments preliminary to the design of an X-ray-excited optical luminescence (XEOL)-based chemical mapping tool we have used X-ray micro (4.5 × 5.2 μm) and macro (1 × 6 mm) beams with similar total fluxes to assess the effects of a high flux density beam of X-rays at energies close to an absorption edge on inorganic surfaces in air. The near surface composition of corroded cupreous alloys was analyzed using parallel X-ray and optical photoemission channels to collect X-ray absorption near-edge structure (XANES) data at the Cu K edge. The X-ray fluorescence channel is characteristic of the composition averages over several micrometers into the surface, whereas the optical channel is surface specific to about 200 nm. While the X-ray fluorescence data were mostly insensitive to the X-ray dose, the XEOL-XANES data from the microbeam showed significant dose-dependent changes to the superficial region, including surface cleaning, changes in the oxidation state of the copper, and destruction of surface compounds responsible for pre-edge fluorescence or phosphorescence in the visible. In one case, there was evidence that the lead phase in a bronze had melted. Conversely, data from the macrobeam were stable over several hours. Apart from localized heating effects, the microbeam damage is probably associated with the O3 loading of the surface and increased reaction rate with atmospheric water vapor.

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Section: Resultsmentioning

confidence: 99%