Abstract
Since the initial determination of the Q0 and k0
factors for 75Se systematic errors in Se determination in
various matrices have been noticed by several users of the
k0 method. A number of publications have been made on
this subject, resulting in different k0 and Q0 values for this
radio-isotope. This work consists of a re-determination of
Q0 and k0 values for 75Se using the bare and Cd-ratio
methods making use of three different irradiation channels
from the BR1 reactor. For this re-determination three different
kinds of standards were used: a pure Se powder
standard, an ICP standard solution and pure Se shots.
Results were compared with previously published literary
data. Differences in k0 with the official published data
ranging from 3.5 to 12 % were observed and potential
reasons for this discrepancy are discussed. A good consistency
with recent work was found. The impact on recent
certification and intercomparison exercises demonstrates
the effectiveness of the newly proposed values.
Original language | English |
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Pages (from-to) | 599-604 |
Journal | Journal of Radioanalytical and Nuclear Chemistry |
Volume | 300 |
Issue number | 2 |
DOIs | |
State | Published - 9 Mar 2014 |