The book Studies in Luminescence was written by author E L Edward Leamington Nichols Here you can read free online of Studies in Luminescence book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Studies in Luminescence a good or bad book?
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9 fj. And 1. 35/1- Experiments with other phos- phorescent substances having ZnS as their base will be necessary to deter- mine whether the absorption that determines this effect on phosphorescence is characteristic of the solvent (ZnS) or of the dissolved metal causing lumi- nescence. It is interesting to note, however, that in the absorption 36 24 22 20 18 16 fJ 14 (L> O 12 & 10 8 6 4 2 -2 0. 7 8 / 9 1. 0 I 7 Z 7 1. 8/1 Fig. 76. Effect of infra-red rays of different wave-length. Ordinates rep...resent the percentage diminution in the time of decay under the influence of infra-red. spectrum of sphalerite (ZnS) Coblentz has found evidence of bands at about 0. 9 n and 1. 4/1. While Coblentz's work does not indicate great absorption at these points, it must be remembered that they fall in the most intense region of the spectrum of a Nernst glower, so that the total amount of energy absorbed might be very considerable. CHAPTER VI. VARIATIONS IN THE DECAY OF PHOSPHORESCENCE PRODUCED BY HEATING.
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