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Determination of hydrogen content in bulk samples using the neutron activation method
R Dóczi1, M A Ali, M Fayez-Hassan
1Institute of Nuclear Research of the Hungarian Academy of Sciences, 4001 Debrecen, Pf. 51, Hungary. drita@falcon.phys.klte.hu
Summary
A new irradiation facility effectively analyzes bulk hydrogen using neutron activation. This method accurately determines hydrogen content in large samples, ideal for concentration measurements.
Area of Science:
- Nuclear analytical chemistry
- Materials science
Background:
- Accurate bulk hydrogen analysis is crucial for materials characterization.
- Existing methods may have limitations for large sample sizes.
Purpose of the Study:
- To evaluate a new irradiation facility for bulk hydrogen analysis.
- To assess the feasibility of using thermal and epithermal neutrons for activation analysis.
- To determine the applicability for large-volume samples.
Main Methods:
- Testing a new irradiation facility with cylindrical samples (8 cm diameter, 10 cm high).
- Utilizing neutron activation analysis with thermal and epithermal neutrons.
- Correlating relative excess flux values (R) with total hydrogen content (N(H)).
Main Results:
- A clear correlation was established between relative excess flux (R) and total hydrogen content (N(H)).
- Analytical expressions derived demonstrate the method's viability for kilogram-scale and liter-scale samples.
- The method shows particular advantage for determining hydrogen concentration (C(H)) in large samples.
Conclusions:
- The new irradiation facility is applicable for bulk hydrogen analysis using neutron activation.
- The method is suitable for large samples, offering advantages for hydrogen concentration determination.
- This technique provides a reliable approach for bulk hydrogen quantification.