Loading...
Projects / Programmes source: ARIS

Radiokemija in radioekologija (Slovene)

Periods
January 1, 1999 - December 31, 2003
Research activity

Code Science Field Subfield
1.08.00  Natural sciences and mathematics  Control and care of the environment   
1.04.00  Natural sciences and mathematics  Chemistry   

Code Science Field
P300  Natural sciences and mathematics  Analytical chemistry 
P305  Natural sciences and mathematics  Environmental chemistry 
P380  Natural sciences and mathematics  Nuclear chemistry 
B270  Biomedical sciences  Plant ecology 
P220  Natural sciences and mathematics  Nuclear physics 
P420  Natural sciences and mathematics  Petrology, mineralogy, geochemistry 
Evaluation (rules)
source: COBISS
Researchers (13)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  04328  PhD Ljudmila Benedik  Chemistry  Head  2001 - 2003  380 
2.  20240  PhD Tinkara Bučar  Metrology  Researcher  2001 - 2003  172 
3.  18648  Grega Fajon    Researcher  2001 - 2002  13 
4.  14082  PhD Radojko Jaćimović  Physics  Researcher  2001 - 2003  737 
5.  03310  PhD Zvonka Jeran  Control and care of the environment  Researcher  2001 - 2003  267 
6.  18287  PhD Darja Mazej  Chemistry  Researcher  2001 - 2003  381 
7.  23577  PhD Andrej Osterc  Chemistry  Researcher  2003  44 
8.  19896  PhD Urška Repinc  Chemistry  Researcher  2002 - 2003  119 
9.  08945  PhD Borut Smodiš  Control and care of the environment  Researcher  2001 - 2003  496 
10.  15728  Janja Smrke    Researcher  2001 - 2003  33 
11.  22324  PhD Polona Smrkolj  Electronic components and technologies  Researcher  2002 - 2003  33 
12.  01873  PhD Vekoslava Stibilj  Chemistry  Researcher  2001 - 2003  687 
13.  20215  PhD Polona Tavčar  Chemistry  Researcher  2001 - 2003  58 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  91,855 
Abstract
The proposed research programme includes the development of methods for the determination of trace and minor elements using instrumental and radiochemical neutron activation analysis. Alpha and gamma spectrometry, beta counting and liquid scintillation techniques will be used for the determination of critical natural and man-made radionuclides. Neutron activation analysis (NAA) offers important advantages for the analysis of trace and minor elements, especially regarding analytical quality control, due to its inherent characteristics such as matrix independence, virtual freedom from blank problems and specificity, as well as its totally independent nature as a nuclear-based method, rather than on electronically-based phenomena as are all other chemical and spectroscopic methods. These inherent advantages make it attractive in quality control. In radiochemical NAA an important source of error is the uncertainty in the chemical yield. The use of radioisotopic tracers to measure the chemical yield for every sample aliquot will be stressed. Further, in its non-destructive or instrumental mode (INAA), the most attractive and rapidly developing form of INAA is the technique of k0-standardisation. This method is very relevant and applicable to environmetal studies. It enables multielement analysis of a range of sample types. On the other hand, it is very often important to determine not only the total concentration a particular element, but also its various isotopes. The major working methods for the determination of radionuclides in a wide variety of environmental samples include non-destructive gamma spectrometry and radiochemical and radioanalytical techniques leading to measurements by alpha spectrometry, beta counting and alpha scintillation techniques, as well as mass spectrometry and NAA for some nuclides. Methods for the determination of natural and man-made radionuclides using alpha spectrometry and the liquid scintillation technique will be developed. Particular attention will be paid to combining NAA and alpha spectrometric methods. Determination of critical natural and man-made radionuclides in environmental samples is obviously important in view of the continuing energy production by nuclear reactors, the associated fuel cycle, reprocessing and waste disposal, and the associated increased potential for environmental contamination and public concern over the potential hazards. Radioecological studies of intake, cycling and of biomonitoring, and of dose assessment will be included.
Most important scientific results Final report
Most important socioeconomically and culturally relevant results Final report
Views history
Favourite