Conveners
Nuclear Analytical Methods 3
- Frans De Corte ((em.) Ghent University and Research Foundation-Flanders)
- Rolf Zeisler (National Institute of Standards and Technology)
Dr
Zsolt Révay
(Technische Universitaet Muenchen FRM II)
14/05/2014, 10:30
Nuclear Analytical Methods
Invited
The high-flux cold neutron beam at the Prompt Gamma Activation Analysis (PGAA) facility at Garching makes possible plenty of new applications, which were impossible earlier when using this technique. The thermal equivalent neutron flux in the focal point is 6 x 10^10 cm^-2 s^-1, which almost reaches the flux of smaller reactors, but in a beam which is totally free of epithermal or fast...
Dr
Rick Paul
(NIST)
14/05/2014, 11:00
Nuclear Analytical Methods
Verbal
An instrument for cold neutron prompt gamma-ray activation analysis (PGAA) has been operational on neutron guide NG7 at the NIST Center for Neutron Research (NCNR) since December 1990. The applicability of this instrument suffers from the presence of the adjacent upper half of the NG7 guide, just 3 cm above the sample position, limiting both sample size and available space for setting up...
Dr
Petra Kudejova
(Technische Universität München)
14/05/2014, 11:15
Nuclear Analytical Methods
Verbal
In the second half of 2013, three independent projects connected to cultural heritage objects emerged at the PGAA facility at FRM II: analysis of clay crucibles for provenance study, determination of chlorine content in rusted iron artefacts and minor element analysis of bronze coins with increased precision for selected elements like e.g. Pb, Zn, Fe or Sn. For all three projects, the high...
Mr
JongHwa MOON
(Korea Atomic Energy Research Institute)
14/05/2014, 11:30
Nuclear Analytical Methods
Verbal
A new cold neutron prompt gamma activation analysis (CN-PGAA) system has been developed at the HANARO cold neutron source. The CN-PGAA is installed at the end position of a CG2B neutron guide. It was designed to be composed of an n-type HPGe and a BGO and will be operated in single bare, Compton suppression and pair spectrometer modes, and there is a gap for a beam chopper for a time-of-flight...
Prof.
Vladimir Kolotov
(Vernadsky Institute of Geochemistry and Analytical Chemistry)
14/05/2014, 11:45
Nuclear Analytical Methods
Verbal
In the recent publications (e.g. ref. [1]) it has been shown that application of computer processing of time series digital autoradiograms allows increase significantly the selectivity of local analysis that allows elements mapping for some noble elements in ores using gamma-activation. It was done by means of pixel-by-pixel processing of time series images to recover apparent half-life for...
