ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Absorption curves of various sodium-24-potassium-42 mixtures for radiochemical purity control during neutron activation analysis

M. Rakovič and Z. Procházková

Lehrstuhl für medizinische Physik und Nuklearmedizin, Medizinische Fakultät an der Karlsuniversität, Praha

 

Abstract: Absorption curves of 42K and 24Na were exptl. detd. On the basis of these curves the absorption curves were calcd. of mixts., the counting rate of which originates mainly from 1 isotope while the second isotope causes only 2%, 4%, 6%, and 10% of the total counting rate. By using various Al filters, the differences among values for various mixts. were detd. For the case in which 24Na is contaminated by a small amt. of 42K, max. difference is found if the thickness of the filter is 0.37 mg./cm.2. By measuring the counting rate of the pure 24Na and of a sample without filtration and with a suitable filter as little as 1% of the total activity which originates from 42K can be proven. Admixts. of 24Na in 42K in a given mixt. is detd. on the basis of the different γ-decay schemes of the 2 nuclides. Because of the similar half-lives, mixts. of 42K and 24Na cannot be analyzed with the aid of the usual decay curve.

Full paper in Portable Document Format: 207a538.pdf (in Czech)

 

Chemical Papers 20 (7) 538–544 (1966)

Tuesday, September 27, 2022

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2022 Chemical Papers