Preparation of new solution standards of radium
- 1 January 1959
- journal article
- research article
- Published by National Institute of Standards and Technology (NIST) in Journal of Research of the National Bureau of Standards
- Vol. 62 (1) , 21-26
- https://doi.org/10.6028/jres.062.005
Abstract
New radium-solution standards have been prepared in the ranges of 10 micrograms and also 10-9 and 10-11 gram of radium element. These have been compared with the National Bureau of Standard''s 1940 and 1947 series of radium-solution standards and, as a result of these comparisons, it has been found that the 1940 10-9 and 10-11 gram solution standards contained some 2 to 3 percent more radium element than certified. It has been shown that this difference probably arose in the dilution of the 1940 standards.This publication has 5 references indexed in Scilit:
- Comparisons of national radium standardsJournal of Research of the National Bureau of Standards, 1957
- A radiation balance for the microcalorimetric comparison of four national radium standardsJournal of Research of the National Bureau of Standards, 1954
- Comparison of four national radium standards. Part 1. Experimental procedures and results. Part 2. Statistical procedures and surveyJournal of Research of the National Bureau of Standards, 1954
- Use of Callendar's "radio-balance" for the measurement of the energy emission from radioactive sourcesJournal of Research of the National Bureau of Standards, 1954
- Factors affecting operation of apparatus for counting alpha particles in an ion counting chamberJournal of Research of the National Bureau of Standards, 1947