Methods of producing radionuclides for spectrometric gamma-ray sources and their standardization--2. Europium-152.
The radionuclide 152Eu was produced by irradiating 151Eu2O3 or 151EuCl3 enriched to 98.9% with thermal neutrons. 152Eu was separated from rare-earth impurities by extraction chromatography on a column using 0.6 M nitric acid eluent. The specific activity of the 152Eu was 1-10 Ci/g of Eu. The impurity of the 154Eu did not exceed 0.1%. The activity standardization of 152Eu was carried out by extrapolation of 4 pi (beta, e, x)-gamma coincidences. The relative gamma-ray intensities for 28 gamma-ray energies emitted in 152Eu decay have been measured.
Danilenko
V N
VN
All-Union Research Institute of Physico-technical and Radiotechnical Measurements, Mendeleevo, Moskovskaya obl., U.S.S.R.
Gromova
N P
NP
Konstantinov
A A
AA
Kurenkov
N V
NV
Malinin
A B
AB
Matveev
S V
SV
Sazonova
T E
TE
Stepanov
E K
EK
Sepman
S V
SV
Tronova
I N
IN
D005063:Europium; D005720:Gamma Rays; D011868:Radioisotopes; D013053:Spectrophotometry / Q000295:instrumentation* / Q000379:methods
D011868:Radioisotopes; D005063:Europium