Mass Spectrographic Mass Assignment of Radioactive Isotopes

A Comparison of East European Constitutional Rights

“…Hayden points to Croatia and Slovenia as examples of countries that have identified the nation and people as an ethnic concept and therefore guarantee specific minority rights. 34 For example, Article 64 of the Slovenian constitution is entitled Special Rights of the Autonomous Italian and Hungarian Ethnic Communities in Slovenia and is the longest article in the constitution. Other constitutions exhibit a similar position on ethnic minority rights.…”

Discovery of rubidium, strontium, molybdenum, and rhodium isotopes

“…77 Rb was separated with an electromagnetic isotope separator attached to a surface ionization ion source and identified by measuring β-and γ-ray activities with the YASNAPP facility. "When the zirconium-niobium target was treated as described above a new β-activity on the mass position A=77 with half-life T 83 Rb was separated with a mass spectrograph and activities were measured with a β-ray spectrometer and end-window Geiger-Müller counters following chemical separation. "The half-life of Rb 83 was determined by following the decay of a sample of rubidium activity produced by 60-Mev helium ion bombardment of bromine, very similar to the sample which gave a radioactive transfer at masses 83 and 84.…”

Discovery of the barium isotopes

“…Subsequently this assignment was specifically made by other authors [50,51] and it was generally adopted in the 1944 Table of Isotopes [52]. The final proof was given by mass-spectroscopic measurements in 1947 [53]. 141 …”