1966
DOI: 10.1002/pssb.19660160222
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On the Colour Centres and X‐Ray Luminescence of Calcium Fluoride Crystals

Abstract: A study is made of differences in the colouration spectrum of calcium fluoride crystals obtained by X-ray irradiation a t different temperatures and by electrolysis. The change6 occurring in the X-ray luminescence spectrum due to the use of different irradiation temperatures are also considered. It is shown that the a-and P-bands, usually only observed in additive and electrolytic colouration, can also be produced by X-ray irradiation if the irradiation temperature is between 180 and 250 "C. The formation of t… Show more

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Cited by 22 publications
(2 citation statements)
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“…X‐radiation soon was found to develop colour centres and to influence electrical conductivity by creating voids . Decomposition of fluorine compounds has been observed after X‐ray exposure and in radioactive minerals . Toth and Felker investigated fluorine generation by γ‐irradiation of fluoride salts .…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…X‐radiation soon was found to develop colour centres and to influence electrical conductivity by creating voids . Decomposition of fluorine compounds has been observed after X‐ray exposure and in radioactive minerals . Toth and Felker investigated fluorine generation by γ‐irradiation of fluoride salts .…”
Section: Discussionmentioning
confidence: 99%
“…Chemical and physical properties of the analysed fluorine compounds do not prefigure complications regarding XRF, although evidence of radiolysis has been reported. Ratnam observed colouration of calcium fluoride crystals because of X‐ray irradiation . Galwey and co‐workers related this effect to aggregation of fluorine gas bubbles .…”
Section: Methodsmentioning
confidence: 99%