Sensitized Fluorescence of Tin

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Abstract
Several Sn lines have been observed in sensitized fluorescence and in a low voltage Tesla discharge. The fluorescence and the discharge were produced in a fused quartz tube containing Sn and Hg and heated by a blow torch and Bunsen burners. A Hanovia SC 2537 tube was used as a light source. The Sn lines observed in fluorescence with their estimated intensities are 4525 (2), 3801 (2), 3331 (4), 3262 (10), 3175 (3), 3034 (10), 3009 (2), 2863 (2), 2840 (10), 2851 (1), 2706 (8), 2661 (3), 2547 (2), 2430 (1), 2355 (0.2). The most intense Sn lines except 3034 are those of low energy discrepancy with excited Hg atoms. The abnormally high intensity of Sn 3034 which agrees with a corresponding effect in the sensitized fluorescence of Pb may indicate a new selection rule for collisions of the second kind.

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