Slow gelation in pressure-still tar
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S.E. Sheppard; L.W. Eberlin
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Article
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1924
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Elsevier Science
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English
โ 110 KB
HERETOFORE, the sensitometric determinations of X-ray intensifying screen factors have not given reliable results owing to the fact that the intensity of the fluorescent light depends considerably on the quality and intensity of the incident X-rays, and the proper conditions for exposure of the scre