International Atomic Energy Agency Vienna Research Articles

Experimental Setup and Standardization of a Continuous Flow Stable Isotope Mass Spectrometer for Measuring Stable Isotopes of Carbon, Nitrogen and Sulfur in Environmental Samples

We present here the experimental setup and standardization of a newly acquired stable isotope ratio mass-spectrometer (Isoprime 100, Isoprime® UK) coupled with elemental analyzer (Pyrocube, Elementar®-Germany) in a continuous flow mode, for the measurements of C, N and S isotopes in a variety of natural as well as synthetic organics and sulfur containing solid samples. We have calibrated our instrument using a suite of certified international standards supplied by International Atomic Energy Agency Vienna and cross-checked against several in-house laboratory standards used by other institutions of international repute. A synthetic organic compound Sulfanilamide was continuously used along with international standards to develop an in-house internal laboratory standard for the accurate and precise isotopic measurements. Important components contributing to the overall uncertainty of the isotopic measurements such as blank contributions, amount effect and response of mass-spectrometric current against thermal conductivity detector were performed using several aliquots of ε-Amino-n-caproic acid and sulfanilamide (in-house) standards. Both short and long term variabilities in the measure isotopic data were assessed using our in-house laboratory standard Sulfanilamide. Overall estimated uncertainties of C, N and S isotopic measurements are better than 0.2, 0.2 and 0.3 ‰, respectively; which are well within the recommended limits of aforementioned isotopic data.

Comparative Evaluation of Therapeutic Radiopharmaceuticals

International Atomic Energy Agency Vienna, Austria: IAEA, 2007, 309 pages, $92.50 This book, report 458 in the IAEA technical series, is based on contributions by the members of the coordinated research project sponsored by the IAEA Division of Physical and Chemical Sciences under the guidance of

Labelling of Small Biomolecules Using Novel Technetium-99m Cores

International Atomic Energy Agency Vienna, Austria: IAEA, 2007, 311 pages, ∼$103 Despite the inarguable contributions and promise of PET, 99mTc remains the workhorse of clinical nuclear medicine imaging. Indeed, generator-based single-photon radiopharmaceuticals appear to have a future because

New Data on Sixteen Reference Materials Obtained by INAA

We report instrumental neutron activation analysis results for 15 elements (K, Fe, Sc, Cr, Co, Zn, As, Rb, Sb, Cs, Ba, Hf, Ta, Th, and U) in 16 geochemical reference samples, namely SDC-1, SCo-1, SGR-1, STM-1, RGM-1, BIR-1, MAG-1 and BHVO-1 from USGS (United States Geological Survey, Reston), Soil-5, Soil-7 and SL-1 from IAEA (International Atomic Energy Agency, Vienna), and GSS-1, GSS-4, GSS-7, GSR-2 and GSR-3 from IGGE Institute of Geophysical and Geochemical Prospecting, People's Republic of China), The results are compared with literature values. In general our results agree well with recommended or proposed values.

Production and Use of Nitrogen-15 in German Agricultural, Biomedical and Ecological Research -A Historical Review-

Abstract The history of production and application of the stable nitrogen isotope15N in Germany is mainly part of the history of the former Institute of Stable Isotopes, later a part of the Central Institute of Isotope and Radiation Research (Zentralinstitut fur Isotopen-und Strahlenforschung) in Leipzig. In 1956, after a relatively large fractionation during isotopic exchange in the system NO/HNO3 was reported by SPINDEL and TAYLOR, the construction of an isotope enrichment plant was planned and started work in 1958 on a laboratory scale. The prodution of 15N-labelled material in the institute started in 1960, followed in 1968 by the start of a separation plant in Wolfen as a branch of industrial fertilizer production. The economy was optimized by feeding back the 15N decreased efflux to the fertilizer production line. The material produced was used for studies at home and abroad. Close contacts with the IAEA (International Atomic Energy Agency, Vienna) and the development of an easy-to-handle optical in...

Model for collisional fast ion diffusion into Tokamak Fusion Test Reactor loss cone

An analytic model is developed to estimate the classical pitch angle scattering loss of energetic fusion product ions into prompt loss orbits in a tokamak geometry. The result is applied to alpha particles produced by deutrium–tritium fusion reactions in a plasma condition relevant to Tokamak Fusion Test Reactor (TFTR) [Proceedings of the 14th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Würzburg, 1992 (International Atomic Energy Agency Vienna, 1992)]. A poloidal angular distribution of collisional fast ion loss at the first wall is obtained and the numerical result from the transp [‘‘A standard D–T supershot simulation’’ (to be published in Nucl. Fusion, 1994)] code is discussed. The present model includes the effect that the prompt loss boundary moves away from the slowing-down path due to reduction in banana thickness, which enables one to understand, for the first time, the dependence of the collisional loss rate on Zeff.

2. The Salzburg Conference on Nuclear Power and its Fuel Cycle

Natural Resources ForumVolume 2, Issue 2 p. 196-199 2. The Salzburg Conference on Nuclear Power and its Fuel Cycle R. KRYMM, R. KRYMM International Atomic Energy Agency Vienna, AustriaSearch for more papers by this author R. KRYMM, R. KRYMM International Atomic Energy Agency Vienna, AustriaSearch for more papers by this author First published: January 1978 https://doi.org/10.1111/j.1477-8947.1978.tb00205.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Volume2, Issue2January 1978Pages 196-199 RelatedInformation

The Oklo Phenomenon: Proceedings of a Symposium, Libreville, 23–27 June 1975 organized by the IAEA in cooperation with the French Atomic Energy Commission and the Government of the Republic of Gabon (comprising 40 papers – 8 in English, 31 in French and 1 in Russian – summary in English and French)

International Atomic Energy Agency Vienna: IAEA (distrib. HMSO) 1975 pp 646 price £17.50 The production of the first man–made fission reactor required enormous technological effort and expertise. The evidence from Gabon, given in 1972, that man had been forestalled by nature produced enormous excitement, the more so for having been totally unexpected.

Surface Science Vols 1 and 2: Lectures Presented at an International Course, Trieste, 16 January–10 April 1974 Organized by the International Centre for Theoretical Physics, Trieste

International Atomic Energy Agency Vienna: IAEA (available from HMSO) 1975 pp Vol 1: 503 Vol 2: 302 price £14 each Five sections are covered: structure of surfaces, including surface thermodynamics, LEED, surface waves, nucleation theory and liquid surfaces; properties of surfaces, which consists of a selection of topics including metal surfaces, electromagnetic surface excitations, surface spectroscopy and electrical transport. The third section includes useful contributions on chemisorption and atomic scattering.

Atoms, Molecules and Lasers: lectures presented at the International Whiter College, Trieste, 17 January – 10 April 1973 organized by the International Centre for Theoretical Physics, Trieste

International Atomic Energy Agency Vienna: IAEA (distributed by HMSO) 1974 pp 710 price £16 Not easy to digest, but more than enough nourishment for the most voracious of students. The first few paragraphs of most of the courses of lectures are within the comprehension of an able undergraduate, but the substance is dense and we soon penetrate beyond the bounds of standard treatises to meet new, sophisticated methods and contemporary research.

CONCLUDING REMARKS

Annals of the New York Academy of SciencesVolume 161, Issue 1 p. 368-370 CONCLUDING REMARKS Lawrence H. Lanzl, Lawrence H. Lanzl The University of Chiago Chicago, III. and International Atomic Energy Agency Vienna, AustriaSearch for more papers by this author Lawrence H. Lanzl, Lawrence H. Lanzl The University of Chiago Chicago, III. and International Atomic Energy Agency Vienna, AustriaSearch for more papers by this author First published: July 1969 https://doi.org/10.1111/j.1749-6632.1969.tb34077.xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume161, Issue1High-Energy Radiation Therapy DosimetryJuly 1969Pages 368-370 RelatedInformation