๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Determination of the relative transition probabilities of some triplet lines in the atomic spectra of calcium and strontium

โœ Scribed by J.W. Schuttevaer; M.J. de Bont; Th. H. van den Broek

Publisher
Elsevier Science
Year
1943
Weight
429 KB
Volume
10
Category
Article
ISSN
0031-8914

No coin nor oath required. For personal study only.

โœฆ Synopsis

The relative transition probabilities (t.p.) of some triplet lines in the spectra of calcium and strontium have been determined with the aid of the relative intensities of these lines in the emission of the column of an electric arc, measured according to the photographic-photometric method. The temperature of the emitting gas was found from the intensity ratio of two Cu lines with known relative t.p.

In table I the relative t.p. of some Ca lines are given. Multiplication by 3,03 . 104 gives the .approximate absolute values. In table II, giving the t.p. of some Sr lines, this factor is 2, 12. 105.

Table III shows a comparison between the t.p. of corresponding triplet lines for some elements of the second group of the periodic system. *) See for a detailed description also J. W. S c h u t t e v a e r: ,,Relatieve waarschijnlijkheden van overgangen in het Ca-, Zn-en Sr-atoom" (thesis Utrecht 1942).

We are much obliged to Prof. Dr. J. M.W. M ilatz for his interest in this work and to Mr. J. A. S m i t for his fertile criticism.

๐Ÿ“œ SIMILAR VOLUMES

The relative probabilities of transition
The relative probabilities of transitions in the zinc atom
โœ J.W. Schuttevaer; J.A. Smit ๐Ÿ“‚ Article ๐Ÿ“… 1943 ๐Ÿ› Elsevier Science โš– 490 KB

In order to determine the relative transition probabilities (t.p.) of the zinc atom, we measured the intensities of lines ~tnd bands in the spectrum of a d.c. carbon arc in air with one electrode containing a mixture of ZnO and MgCO 3 or MgO. In table I the relative intensities of the components wi