An Examination of Praseodymium, Neodymium and Samarium for α-Activity
Abstract
A PHOTOGRAPHIC method for the detection of extremely weak α-activities has recently been described1. The method has now been applied to the examination of elements 59, 60 and 62. The results have some bearing on the question whether an unidentified pleochroic halo of a certain type, found in very old mica, is due to an α-active isotope of element 61 2.
- Publication:
-
Nature
- Pub Date:
- October 1949
- DOI:
- 10.1038/164658b0
- Bibcode:
- 1949Natur.164..658B