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Mair, M.A.; Savage, D.J.
UKAEA Risley Nuclear Power Development Establishment1986
UKAEA Risley Nuclear Power Development Establishment1986
AbstractAbstract
[en] Plutonium nitrate solution is treated with sulphuric acid before being heated and finally ignited. The stoichiometric plutonium dioxide so formed is weighed and hence the plutonium content is calculated. (author)
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Dec 1986; 14 p
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[en] 1, 2, 3, 4-cyclopentanetetracarboxylic acid (CPTA) may be used for the gravimetric determination of zirconium. The procedure is simple and relatively free from interference. (author)
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Journal Article
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Talanta; v. 24(2); p. 122-123
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[en] In the scope of installation safety and criticality studies, an assessment was made of moisture uptake by plutonium oxide powder used for oxide fuels. The effects of exposure time, atmospheric relative humidity (9-98%), calcination temperature (400-11000C) and specific area of the PuO2 powder were evaluated. Based on these parameters, the moisture uptake of the PuO2 powder varies from 0,1 to 2,5%; moreover, the variation appears to be a linear function to the specific surface area
[fr]
La reprise d'humidite par une poudre d'oxyde de plutonium utilisee dans les combustibles d'oxydes a ete reprecisee et ce dans le cadre d'etude de surete-criticite des installations. Les influences du temps d'exposition, de l'humidite relative de l'air (9 a 98%) de la temperature de calcination (400 a 11000C) et de la surface specifique de la poudre de PuO2 sont etudiees. En fonction de ces parametres, les taux de reprise de l'humidite de la poudre de PuO2 peuvent varier de 0,1 a 2,5%, et semblent varier lineairement en fonction de la surface specifiqueOriginal Title
Reprise d'humidite par une poudre d'oxyde de plutonium
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Journal Article
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Analusis; ISSN 0365-4877;
; v. 8(8); p. 376-380

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AbstractAbstract
[en] The water content of a large number of samples of Older and Younger Halit exists in four different forms: hydration water, crystal boundary surface water, brine droplets within negative crystals (inclusions), and water molecules trapped within the crystal lattice. A thermogravimetric investigation was conducted to show what happens to the water as the temperature is increased. Preliminary results are reported
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Maass, K.E.; Pomplun, E.; Weis, M. (eds.); Gesellschaft fuer Strahlen- und Umweltforschung m.b.H. Muenchen, Clausthal-Zellerfeld (Germany, F.R.). Inst. fuer Tieflagerung; Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (Germany, F.R.); p. 392-396; 1979; p. 392-396; US/FRG bilateral workshop on waste isolation performance assessment and in-situ testing; Berlin, F.R. Germany; 1 - 5 Oct 1979
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AbstractAbstract
No abstract available
Original Title
Determinacao do niobio e da mistura niobio/tantalo
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Instituto de Engenharia Nuclear, Rio de Janeiro (Brazil); 175 p; 1981; p. 115; Published in summary form only.
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Miscellaneous
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Prosky, L.
IAEA-NBS international workshop. Practical analytical approaches to the assessment of human dietary intake of nutrients, toxic constituents and radionuclides1987
IAEA-NBS international workshop. Practical analytical approaches to the assessment of human dietary intake of nutrients, toxic constituents and radionuclides1987
AbstractAbstract
[en] Short communication
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International Atomic Energy Agency, Vienna (Austria); National Bureau of Standards, Gaithersburg, MD (USA); 57 p; Oct 1987; p. 33; IAEA-NBS international workshop on practical analytical approaches to the assessment of human dietary intake of nutrients, toxic constituents and radionuclides; Gaithersburg, MD (USA); 2 Oct 1987
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AbstractAbstract
No abstract available
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33. Annual Meeting of the Brazilian Society for the Advancement of Science; Salvador, Brazil; 8 - 15 Jul 1981; Published in summary form only.
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Journal Article
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Cienc. Cult. (Sao Paulo) Supl; v. 33(7); p. 350
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AbstractAbstract
[en] The verification of safeguarded materials by means of destructive analysis involves at present transport of small samples from the inspected facilities for analysis off-site. Delays occurring during the verification procedure often did not allow its completion within the IAEA's criteria for timely verification. To overcome this problem, the IAEA has developed a new concept that calls for: concluding arrangements based on existing agreements with Member States concerned for waiving restrictions on the export of safeguards samples, and applying for a global licence to transport them; establishing transport procedures that define the composition of the consignment and the appropriate transport container, dispatch, freight forwarder and carrier, and reaching agreement for the procedures with the organizations involved; implementing a procedure for keeping track of the samples during their entire lifetime; placing contracts with the analytical laboratories for timely analysis, and setting up an efficient mode of distribution for the samples under consultation with the laboratories involved. The concept was tested on 78 samples from a reprocessing plant. All analytical results were reported within the goal detection time. The partial implementation of the concept has already resulted in a significant reduction of the delays for all categories of safeguarded materials. When all the measures described in the concept are completely established, a timely verification employing destructive analysis should be feasible. (author)
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International Atomic Energy Agency, Vienna (Austria); Proceedings series; 769 p; ISBN 92-0-070187-6;
; 1987; v. 1 p. 631-641; IAEA; Vienna (Austria); International symposium on nuclear material safeguards; Vienna (Austria); 10-14 Nov 1986; IAEA-SM--293/111; 9 refs, 3 figs, 1 tab.

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Book
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Bievre, P. de; Goergenyi, T.; Kuhn, E.; Deron, S.; Regge, P. de; Dalton, J.; Pietri, C.
Nuclear safeguards technology 19861987
Nuclear safeguards technology 19861987
AbstractAbstract
[en] A list of 1987 Target Values for achievable uncertainty components in fissile isotope and element assay has evolved from discussions within the ESARDA Working Group on Techniques and Standards for Destructive Analysis, the INMM Committee on Analytical Chemistry Laboratory Measurement Control and the INMM Committee on Mass Spectrometry Measurement Control. It updates the list of 1983 Target Values on the basis of the experience gathered in using the concept. (author)
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Source
International Atomic Energy Agency, Vienna (Austria); Proceedings series; 769 p; ISBN 92-0-070187-6;
; 1987; v. 1 p. 649-662; IAEA; Vienna (Austria); International symposium on nuclear material safeguards; Vienna (Austria); 10-14 Nov 1986; IAEA-SM--293/21; 15 refs, 1 fig, 3 tabs.

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AbstractAbstract
[en] Thermogravimetry (TG) is a sensitive and powerful tool for investigation of oxygen nonstoichiometry and related properties in mixed-valence oxide systems and has been extensively applied to a series of high-Tc oxide superconductors. Nonstoichiometry, phase stability ranges, and oxygen diffusion as investigated mainly through the TG technique in several systems of high-Tc oxides are reviewed
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Jorgensen, J.D. (Argonne National Lab., IL (USA)); Kitazawa, K. (Tokyo Univ. (Japan). Faculty of Engineering); Tarascon, J.M. (Bellcore, Red Bank, NJ (USA)); Thompson, M.S. (Raychem Corp., Menlo Park, CA (USA)); Torrance, J.B. (IBM Research Div., San Jose, CA (USA). Almaden Research Center); Materials Research Society symposium proceedings. Volume 156; 402 p; ISBN 1-55899-029-1;
; 1989; p. 91-97; Materials Research Society; Pittsburgh, PA (USA); Spring meeting of the Materials Research Society; San Diego, CA (USA); 24-28 Apr 1989; CONF-890426--; Materials Research Society, 9800 McKnight Rd., Suite 327, Pittsburgh, PA 15237 (USA)

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