Published 1983 | Version v1
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Activation analysis by #betta# spectroscopy after cyclic irradiation with 14 MeV neutrons, illustrated by the example of the 19F(n,p)19O reaction

Creators

  • 1. GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany, F.R.). Inst. fuer Physik

Description

In the present work the concentrations of fluorine in human tooth and other materials have been determined by 14 MeV neutron activation analysis. For analytical work short-lived indicator nuclides have been used. The effects of matrix activity, which is high for natural samples, have been discussed and a solution has been worked out. Various functions have been tried for the interpolation of the efficiency values of Ge(Li)-detectors. For a cylindrical neutron tube the flux distribution and flux averaged on the sample volume have been formulated and numerically calculated. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

In dieser Arbeit wird Fluor im menschlichen Zahn und anderen Materialien mit Hilfe der 14-MeV-Neutronenaktivierungsanalyse quantitativ nachgewiesen. Dabei wird die Problematik der Analyse mit Hilfe kurzlebiger Indikatornuklide bei hohen Matrixaktivitaeten aufgezeigt und eine Loesung erarbeitet. Verschiedene Funktionen zur Interpolation von Ge(Li)-Efficiency-Werten werden untersucht. Das Problem der Flussverteilung innerhalb einer zylindrisch aufgebauten Neutronenroehre und das des mittleren Flusses im Probenvolumen werden formuliert und ein numerisches Berechnungsverfahren entwickelt. (orig.)

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Additional details

Additional titles

Original title (German)
Aktivierungsanalyse durch #betta#-Spektroskopie nach zyklischer Bestrahlung mit 14-MeV-Neutronen am Beispiel der

Publishing Information

Imprint Pagination
88 p.
Report number
GKSS--83/E/6

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
14782439
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ACTIVATION ANALYSIS; DENTISTRY; FAST NEUTRONS; FLUORINE; GAMMA SPECTROSCOPY; MEV RANGE 10-100; NEUTRON ACTIVATION ANALYZERS; NEUTRON FLUX; TEETH
Descriptors DEC
BARYONS; CHEMICAL ANALYSIS; DIGESTIVE SYSTEM; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; HADRONS; HALOGENS; MEASURING INSTRUMENTS; MEDICINE; MEV RANGE; NEUTRONS; NONMETALS; NUCLEONS; ORAL CAVITY; RADIATION FLUX; SPECTROSCOPY

Optional Information

Notes
Diploma thesis submitted to Technische Univ. Berlin (Germany, F.R.). With 33 figs., 10 tabs.