"Seminář Radioanalytické metody IAA 12" - Search Results - Digital Repository

guest :: login Digital Repository
		Search		Submit		Help		About

Home > Search Results: "Seminář Radioanalytické metody IAA 12"

Search:

Search Tips :: Advanced Search

Search collections:

Sort by:	Display results:	Output format:

	On possible parent crater for Australasian tektites: Geochemical, isotopic, geographic and ballistic constraints Mizera, Jiří ; Řanda, Zdeněk A set of Australasian tektites (AAT) has been geochemically characterized by methods of activation analysis. Based on the acquired data as well as previously published geochemical, mineralogical, petrographical and isotopic data on both AAT and their potential source materials, and considering geographic and ballistic constraints known from other tektites and their strewn fields, probable source materials and location of the parent impact crater for AAT have been discussed. Detailed record
	Determination of elemental impurities in polymer materials of electrical cables of safety systems of nuclear power plants by neutron activation analysis Kučera, Jan ; Kubešová, Marie ; Bartoníček, B. Instrumental neutron activation analysis (INAA) was employed for elemental characterization of individual components of electrical cables currently used in safety systems of nuclear power plants (NPP). The analysis yielded information about the content of 35 elements. It has been found that the cables do not satisfy requirements of qualification set for the new generation of NPP by „The European Utility Requirements for LWR Nuclear Power Plants”, because content of several elements exceeded the maximal impurity levels. INAA proved to be a method of choice for elemental characterization of polymer materials of electrical cables as part of their qualification for use in NPP. Detailed record
	Nondestructive determination of nitrogen in biological and other materials by photon activation analysis Krausová, Ivana ; Mizera, Jiří ; Chvátil, David ; Krist, Pavel ; Řanda, Zdeněk ; Kučera, Jan ; Štursa, Jan A procedure has been developed for assaying nitrogen in biological materials by means of instrumental photon activation analysis (IPAA). The determination has been based on counting of the non-specific 511 keV annihilation gamma rays of 13N, product of the photonuclear reaction 14N(γ, n)13N and a pure positron emitter. IPAA allowed determination of nitrogen down to 1 wt.%. in selected biological reference standards - NIST RM 8433 Corn Bran, 1547 Peach Leaves, 8414 Bovine Muscle, and 1577b Bovine Liver. The optimized procedure was applied also to assaying nitrogen in pulverized nanodiamond intended for medical purposes. Detailed record
	How to calculate uncertainties of neutron flux parameters and uncertainties of analysis results? Kubešová, Marie ; Kučera, Jan A novel method has been developed for the calculation of uncertainties of neutron flux parameters and element mass fractions and their uncertainties in k0-neutron activation analysis (k0-NAA) using the Kragten universally applicable spreadsheet technique. The results obtained are compared with other approaches for evaluation of uncertainties of the neutron flux parameters and element mass fractions, namely with the Kayzero for Windows, k0-IAEA and ERON programs. Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.

Digital Repository :: :: :: ::
Powered by v1.1.2
Maintained by

This site is also available in the following languages:
Česky English