Results 131 to 140 of about 6,377 (165)

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

EVALUATION OF CUPRIMINE® AND SYPRINE® FOR DECORPORATION OF RADIOISOTOPES OF CESIUM, COBALT, IRIDIUM AND STRONTIUM

Health Physics, 2011
Cuprimine® and Syprine® are therapeutics approved by the USFDA to treat copper overload in Wilson Disease (a genetic defect in copper transport) by chelation and accelerated excretion of internally-deposited copper. These oral therapeutics are based on the respective active ingredients D-penicillamine (DPA) and N,N'-bis (2-aminoethyl) -1,2 ...
Tatiana G, Levitskaia, Jeffrey A, Creim, Terry L, Curry, Teresa, Luders, James M, Peterson, Karla D, Thrall, Barry, Levinson   +6 more
openaire   +2 more sources

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

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

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.
Cezary A. Kozlowski, Wladyslaw Walkowiak
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

Elucidation of molybdenum-based catalysts using a radioisotope tracer method Part 2 Promotion effect of cobalt on molybdena/alumina catalyst

Journal of the Chemical Society, Faraday Transactions, 1997
Hydrodesulfurization (HDS) reactions of radioactive 35S-labelled dibenzothiophene were carried out over a series of cobalt-promoted molybdena/alumina catalysts at temperatures between 240 and 320°C and under 50 kg cm-2 pressure. HDS and hydrogenation (HYD) activities of Mo/Al2O3 catalysts were remarkably enhanced with the addition of cobalt, the ...
Weihua Qian, Atsushi Ishihara, Yuzo Okoshi, Waka Nakakami, Masazumi Godo, and Toshiaki Kabe   +5 more
openaire   +1 more source

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

[Cobalt radioisotope teletherapy of patients with metastases to the brain].

Neurologia i neurochirurgia polska, 1987
The results are presented of palliative telecobaltotherapy in patients with metastases to the brain. The patients received a dose of 30 Gy in 10 fractions during 2 weeks. Clinical improvement was achieved in 28 out of 33 treated patients (85%). The survival time after the completion of radiotherapy was from 1 to 15 months, mean 5 months.
H, Karnicka-Młodkowska, J, Jassem, A, Dziewulska-Bokiniec   +2 more
openaire   +1 more source