Results 131 to 140 of about 1,476 (161)

Competetive transport of cobalt-60, strontium-90, and cesium-137 radioisotopes across polymer inclusion membranes with DNNS

Journal of Membrane Science, 2007
Abstract Plasticized cellulose triacetate membranes with 3,7-dinonyl-naphtalene-1-sulfonic acid (DNNS) containing o -nitrophenyl pentyl ether (ONPPE) as the plasticizer were prepared for competitive transport of Cs-137, Sr-90, and Co-60 isotopes from aqueous solutions at concentration of 1.0 × 10 −7  M each and containing 0.10 M sodium nitrate.
Wladyslaw Walkowiak, Cezary A Kozlowski
exaly   +2 more sources

Production possibility of radioisotopes by alpha induced reactions on cobalt for PET studies

Nuclear Instruments & Methods in Physics Research B, 2002
Kazutoshi Suzuki, Makoto Takei, Ferenc Szelecsényi   +2 more
exaly   +2 more sources

Intermetallic cobalt–gallium targets for production of germanium radioisotopes

Applied Radiation and Isotopes, 2022
Increasing interest in targeted radionuclide therapy motivates the development of new radionuclides. The unique emission spectrum from 71Ge make it an ideal candidate for probing microdosimetric effects of low energy electrons absent confounding photon dose.
C.J. Kutyreff, T.E. Barnhart, Y.H. Lo, S. Happel, R.J. Nickles, P.A. Ellison, E. Aluicio-Sarduy, J.W. Engle   +7 more
openaire   +2 more sources

Neutronic Analysis to Replace Cobalt Radioisotope Facility by Iridium Radioisotope Facility at ETRR-2

Nuclear Science and Engineering, 2020
The Egyptian Second Research Reactor (ETRR-2) is a pool-type reactor, 22 MW thermal, with 27 fuel elements loaded with 60Co production facility in the most relative highest flux position for the pr...
Mohamed A. Elsaied, Alya A. Badawi, Nader M. A. Mohamed, Ahmed El Saghir, Asmaa G. Abo Elnour   +4 more
openaire   +1 more source

Analysis of a case of internal contamination with cobalt radioisotopes

Radiation Protection Dosimetry, 2006
Internal contamination by compounds of cobalt radioisotopes occurs time to time at nuclear power plants. Intakes and committed effective doses are estimated by biokinetic models described in ICRP publications. The paper deals with a case of internal contamination of a worker engaged in a maintenance task at NPP Dukovany.
T, Vrba, I, Malatova, B, Jurochova
openaire   +2 more sources

A Radioisotope Study of Cobalt in Porcelain Enamel

Journal of the American Ceramic Society, 1952
A typical porcelain enamel ground coat containing a small amount of radioactive cobalt as oxide was prepared, applied to sandblasted enameling iron blanks, and fired under conditions selected to give underfired, normally fired, and overfired coatings, respectively.
WILLIAM N. HARRISON, JOSEPH C. RICHMOND, JOSEPH W. PITTS, STANLEY G. BENNER   +3 more
openaire   +1 more source

Radioisotopic Investigation of the Codeposition of Iron, Cobalt, and Nickel in Gold Electrodeposits on Electronic Equipment

Isotopenpraxis Isotopes in Environmental and Health Studies, 1976
The effect of contamination of a cyanide, phosphate-buffered gold-plating bath with iron, cobalt, or nickel on the codeposition of these metals with gold, was investigated using 59Fe, 58Co and 63Ni. It was shown that cobalt and nickel were practically not codeposited in gold if present in the solution in amounts up to 1000 or 2000 mg/dm3 respectively ...
W. Ławicki, K. S. Kasprzak, S. Magas
openaire   +1 more source

Comprehensive RNAA of Cadmium, Cobalt, Nickel, and Copper Using 109Cd, 57Co, and Reactor-Produced 67Cu as Radioisotopic Yield Monitors

Biological Trace Element Research, 1994
An existing radiochemical NAA procedure for Cd, Co, and Cu was improved to allow determination of individual radiochemical yields by the radioisotopic tracer technique, thus eliminating errors owing to variable recovery. 109Cd was used as tracer for Cd determination via 115Cd/115mIn, 57Co for Co via 60Co, and potentially for Ni via 58Co, whereas as a ...
A R, Byrne, M, Dermelj
openaire   +2 more sources

Application of the cobalt based superalloy Haynes Alloy 25 (L605) in the fabrication of future radioisotope power systems

AIP Conference Proceedings, 1998
The development of a new generation of radioisotope power systems is presently underway using a variety of innovative material selections. One of these materials is the cobalt based superalloy Haynes Alloy 25 (L605) (Haynes International, Inc., Kokomo, IN) which is being proposed as a structural member in the fabrication of Alkali Metal Thermal to ...
D. P. Kramer, J. R. McDougal, J. D. Ruhkamp, D. C. McNeil, F. A. Koehler, R. A. Booher, E. I. Howell   +6 more
openaire   +1 more source

Sulfidation of nickel- and cobalt-promoted molybdenum–alumina catalysts using a radioisotope 35S-labeled H2S pulse tracer method

Applied Catalysis A: General, 2000
Abstract The sulfidation state in a series of nickel- and cobalt-promoted Mo/Al 2 O 3 catalysts was investigated using 35 S radioisotope pulse tracer methods (RPTM). Several pulses of 35 S -labeled H 2 S ([ 35 S ]H 2 S) were introduced into catalysts in a nitrogen stream until the radioactivity in the recovered pulse ...
Weihua Qian, Atsushi Ishihara, Yasuo Aoyama, Toshiaki Kabe   +3 more
openaire   +1 more source