RadChem 2018

Session

NAM 1

NAM.1

14 May 2018, 15:30

Marble Hall (Casino Conference Centre)

Conveners

NAM 1

• Xiaolin Hou (Technical University of Denmark, Center for Nuclear Technologies)
• Jan Kučera (Nuclear Physics Institute of CAS, Řež near Prague, Czech Republic)

678. Sensitivity of in-beam neutron activation analysis

Zsolt Révay (Technische Universität München - FRM II)

14/05/2018, 15:30

Nuclear Analytical Methods

Invited

In-beam activation analysis, i.e. the combination of prompt gamma activation analysis (PGAA) using neutron beams from research reactors combined with neutron activation analysis (NAA), can in principle be performed at many neutron centers all over the world. Thanks to its strong beam flux (max. 6E10 cm^-2 s^-1), at Heinz Maier-Leibnitz Zentrum (MLZ), Garching, Germany it has been successfully...

712. Improving the Accuracy, Precision and Detection Limits for PGAA

Rick Paul (NIST)

14/05/2018, 16:00

Nuclear Analytical Methods

Verbal

Prompt gamma-ray activation analysis has long been used for nondestructive elemental analysis, particularly of the light elements (e.g. H, C, N, S, P, Cl). However, the accuracy and precision of the method for elemental determination of hydrogenous materials is limited by the calibration of elemental sensitivities (cps/mg element), which vary with both neutron scattering power (i.e. hydrogen...

726. Archaeometry with Prompt Gamma Activation Analysis, In-Beam Neutron Activation Analysis and Neutron Tomography at the PGAA instrument of MLZ

Dr Christian Stieghorst (TUM - FRM II)

14/05/2018, 16:15

Nuclear Analytical Methods

Verbal

The low-destructive nature of many neutron-based analytical techniques is a main argument for their application in archaeometry. Further advantages of these methods are the little sensitivity for the matrix composition, easy sample preparation and fairly low detection limits. A combination of two or more of these methods broadens the application possibilities. For instance, prompt gamma...

641. Simultaneous preconcentration of cadmium, cobalt, copper, manganese, nickel and zinc with 1-(2-Pyridylazo)-2-naphthol by cloud point extraction followed by neutron activation analysis

Prof. Amares Chatt (Dalhousie University)

14/05/2018, 16:30

Nuclear Analytical Methods

Verbal

A method for the simultaneous preconcentration of six environmentally relevant transition metals, namely cadmium, cobalt, copper, manganese and zinc, by cloud point extraction followed by their determination using neutron activation analysis (NAA) was developed. The method involved the use of a nonionic surfactant, namely PONPE-7.5, and the chelating agent 1-(2-pyridylazo)-2-naphthol commonly...

472. Geochemical characterization of Quaternary loess–paleosol sediments from Lingtai by instrumental neutron and photon activation analyses

Jiří Mizera (Nuclear Physics Institute, Czech Academy of Sciences)

14/05/2018, 16:45

Nuclear Analytical Methods

Verbal

Quaternary aeolian sediments, particularly loess–paleosol sequences constitute some of the longest and most detailed records of Quaternary climatic change and valuable data archives for paleoenvironmental reconstructions. In the Chinese Loess Plateau in north-central China, the loess horizons represent arid periods of increased influx of wind-blown dust when the dust-transporting winter...