AbstractAbstract
No abstract available
Original Title
Contribution a l'etude des transferts particulaires sur la marge continentale de Golfe du Lion (Mediterranee Nord-occidentale). Utilisation de deux traceurs radioactifs le plomb-210 et le polonium 210
Primary Subject
Source
1998; 154 p; Available from Universite de Perpignan, 52, avenue de Villeneuve, 66860 Perpignan Cedex (France); These oceanologie
Record Type
Report
Literature Type
Thesis/Dissertation
Report Number
Country of publication
ALPHA DECAY RADIOISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DAYS LIVING RADIOISOTOPES, ENVIRONMENTAL TRANSPORT, EVEN-EVEN NUCLEI, HEAVY NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPE APPLICATIONS, ISOTOPES, LEAD ISOTOPES, MASS TRANSFER, NUCLEI, POLONIUM ISOTOPES, RADIOACTIVITY LOGGING, RADIOISOTOPES, SEAS, SURFACE WATERS, TRACER TECHNIQUES, WELL LOGGING, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Abassi, A.; Radakovitch, O.; Heussner, S.; Monaco, A.
Radioprotection. Pt.1. Inventories, behaviour and processes1997
Radioprotection. Pt.1. Inventories, behaviour and processes1997
AbstractAbstract
[en] Concentration of 210Pb has been measured in water and sediment trap samples collected on 7 experimental sites representative of the Gulf of Lion's continental margin. This marine system is characterised by a major continental input through the Rhone river and a powerful along-slope cyclonic current (Northern Current). From the distribution of bulk 210Pb activities, it was intended to gain some information on the processes controlling the transport of trace metals at the ocean/continent boundary. Residence times of 210Pb relative to scavenging in surface waters (0-100 m) showed a constant along-slope (i.e., downstream) decrease that can be related to increasing concentrations in suspended particles. Annual time-series of 210Pb activities in settling particles were determined on samples collected by traps at 500 and 1000 m depth. From this data set, a budget for 210Pb on this margin was established which permitted to determine the flux of 210Pb theoretically adsorbed onto particles. This theoretical flux was compared, at each site, with fluxes effectively measured by traps and revealed that exchange processes - mainly in the form of large inputs of this nuclide (import of 47 to 93% of measured flux) - largely affect the 210Pb distribution on this continental margin. (author)
Primary Subject
Source
Germain, P.; Guary, J.C.; Guegueniat, P.; Metivier, H. (eds.); [454 p.]; ISBN 2-86883-297-0;
; 1997; p. 155-160; RADOC 96-97: Radionuclides in the Oceans; Cherbourg-Octeville (France); 7-11 Oct 1996; ISSN 0033-8451;
; 12 refs.


Record Type
Book
Literature Type
Conference
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
Radakovitch, O.; Heussner, S.; Biscaye, P.; Abassi, A.
Radioprotection. Pt.1. Inventories, behaviour and processes1997
Radioprotection. Pt.1. Inventories, behaviour and processes1997
AbstractAbstract
[en] The natural radionuclides 210Po and 210Pb, members of the 238U decay chain, are particularly helpful to the understanding of particle transport processes in the ocean. These isotopes were analysed on sediment trap particles collected during 3 one-year experiments on continental margins. In the Bay of Biscay (Northeastern Atlantic) and in the Gulf of Lion (Northwestern Mediterranean Sea) both as part of the French ECOMARGE programme, and in the Middle Atlantic Bight (Northwestern Atlantic) as part of the SEEP programme. They yielded great insights into scenarios of particle transfer at each site, mainly based on the spatial and temporal distribution of 210Pb particulate concentrations and fluxes. (author)
Primary Subject
Source
Germain, P.; Guary, J.C.; Guegueniat, P.; Metivier, H. (eds.); [454 p.]; ISBN 2-86883-297-0;
; 1997; p. 147-153; RADOC 96-97: Radionuclides in the Oceans; Cherbourg-Octeville (France); 7-11 Oct 1996; ISSN 0033-8451;
; 11 refs.


Record Type
Book
Literature Type
Conference
Country of publication
ALPHA DECAY RADIOISOTOPES, ATLANTIC OCEAN, BAYS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, COASTAL WATERS, DAYS LIVING RADIOISOTOPES, ENVIRONMENTAL TRANSPORT, EVEN-EVEN NUCLEI, HEAVY NUCLEI, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, LEAD ISOTOPES, MASS TRANSFER, NUCLEI, POLONIUM ISOTOPES, RADIATION TRANSPORT, RADIOISOTOPES, SEAS, SURFACE WATERS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Electrical and dielectric properties of a polycrystalline La0.6Nd0.1Sr0.3Mn0.7Ti0.3O3 sample prepared by standard solid state reaction technique are presented. FTIR studies have showed the vibration of (Mn/Ti)O6 octahedra. The complex impedance is investigated in a temperature range 120-340 K and in frequency range 40 Hz-10 MHz. The impedance spectra have indicated that the electrical properties are strongly dependent on temperature and frequency, showing a good correlation with the sample microstructure. Ac conductivity is found to obey Jonscher power law. The value of activation energy estimated from the conductivity analysis is slightly higher than that deduced from relaxation analysis. (author)
Primary Subject
Record Type
Journal Article
Journal
Indian Journal of Physics (Online); ISSN 0974-9845;
; v. 90(12); p. 1375-1383

Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Kahoul, A.; Abassi, A.; Deghfel, B.; Nekkab, M., E-mail: ka_abdelhalim@yahoo.fr2011
AbstractAbstract
[en] In this study, empirical K-shell fluorescence yields (ωK) from the available experimental data for elements with 6≤Z≤99 were calculated. The experimental data are fitted using the quantity (ωK/(1-ωK))1/q (where q=3, 3.5 and 4) vs. Z to deduce the empirical fluorescence yields. A comparison is made between the results of the procedures followed here and the literature theoretical and empirical values.
Primary Subject
Source
S0969-806X(10)00440-8; Available from http://dx.doi.org/10.1016/j.radphyschem.2010.11.011; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] In this study, interpolations (empirical and semi-empirical) of L sub-shell fluorescence yield and L shell Coster–Kronig transition probability values and the measured L X-ray production cross-sections, intensity ratios and L sub-shell fluorescence yield values of elements have been performed in the range of 50≤Z≤92. In this experimental setup, two sources (50 mCi 55Fe and 50 mCi 241Am) were used. L X-rays emitted by samples were counted by an Ultra-LEGe detector with a resolution of 150 eV at 5.9 keV. - Highlights: • This work was performed for the elements having the atomic numbers between 50 and 92. • Experimental L-shell fluorescence parameters were investigated. • New fit values of L subshell fluorescence and Coster–Kronig yield were presented
Primary Subject
Source
S0969-806X(14)00286-2; Available from http://dx.doi.org/10.1016/j.radphyschem.2014.06.030; Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Country of publication
ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, AMERICIUM ISOTOPES, AUGER EFFECT, BETA DECAY RADIOISOTOPES, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, ELECTRONIC STRUCTURE, EMISSION, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-ODD NUCLEI, HEAVY NUCLEI, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, IRON ISOTOPES, ISOTOPES, LUMINESCENCE, MATHEMATICAL SOLUTIONS, MEASURING INSTRUMENTS, NUCLEI, NUMERICAL SOLUTION, ODD-EVEN NUCLEI, PHOTON EMISSION, RADIATION DETECTORS, RADIATIONS, RADIOISOTOPES, SEMICONDUCTOR DETECTORS, SPONTANEOUS FISSION RADIOISOTOPES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue