Cyclic activation analysis

Givens, W.W.; Mills, William R.; Caldwell, Richard L.

doi:10.1016/0029-554x(70)90302-2

Cited by 59 publications

(9 citation statements)

References 1 publication

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“…CAA has been used in conjunction with multiple irradiation methodologies including reactors, neutron generators, pulsed accelerator beams and isotopic sources and has been applied in a variety of matrices. One of the first applications of the technique was the analysis of geological materials [7]. Biological and metallurgical matrices have also been analyzed [8].…”

Section: Ag By Cenaamentioning

confidence: 99%

Determination of Ag, Au, Cu and Zn in ore samples from two Mexican mines by various thermal and epithermal NAA techniques

Rodriguez

Yoho

Landsberger

2015

J Radioanal Nucl Chem

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Concentrations of Ag, Au, Cu and Zn were determined via neutron activation analysis in ore prospecting samples from the Cozamin and Tizapa Mexican mines. Ag concentrations were determined by applying cyclic epithermal neutron activation analysis. The method combined with an automated fast-pneumatic transfer system allows increased sample through-put which improves the analytical precision in silver prospecting. Combinations of thermal, epithermal and Compton suppression NAA were used to improve signal-to-noise ratios. Mining depths with significantly higher levels of Ag were determined. Reference material concentrations for quality control were found to be in good agreement with the certified values.

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Section: Ag By Cenaamentioning

confidence: 99%

Determination of Ag, Au, Cu and Zn in ore samples from two Mexican mines by various thermal and epithermal NAA techniques

Rodriguez

Yoho

Landsberger

2015

J Radioanal Nucl Chem

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“…For n consecutive fast neutron pulses with a repetition period T(s) the time dependence of the cumulative count rate may be expressed from the basic equation for cyclic activation [5] replacing the half-life of the activation product by the die-away time as…”

Section: Basic Considerationsmentioning

confidence: 99%

Thermal neutron die-away times in large samples irradiated with a pulsed 14 MeV neutron source

Mildenberger

Mauerhofer

2015

J Radioanal Nucl Chem

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In order to measure delayed gamma-rays without appreciable interferences of prompt gamma-rays, thermal neutron-die-away times in different large samples irradiated with 14 MeV pulsed neutrons at the MEDINA facility are studied. The die-away times are found to range between 2 and 5 ms according to the irradiated materials. For the acquisition of the delayed gamma-rays spectra a waiting time of about 12 ms after the end of the neutron pulses is needed.

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“…In our previous publication [7], simplified formulae have been derived for the standardization with chopped-beam PGAA, as a limiting case of the cyclic activation analysis equation by Givens et al [8]. It has been shown that the cumulative peak area in the closed-phase spectrum, from a radionuclide with lT51 can be calculated as follows:…”

Section: Standardization Of the Decay Linesmentioning

confidence: 99%

Measurement of partial γ-ray production cross-sections and k0 factors for radionuclides with chopped-beam PGAA

Szentmiklósi

Révay

Belgya

2006

Nuclear Instruments and Methods in Physics Research Section A:

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Cyclic activation analysis

Cited by 59 publications

References 1 publication

Determination of Ag, Au, Cu and Zn in ore samples from two Mexican mines by various thermal and epithermal NAA techniques

Determination of Ag, Au, Cu and Zn in ore samples from two Mexican mines by various thermal and epithermal NAA techniques

Thermal neutron die-away times in large samples irradiated with a pulsed 14 MeV neutron source

Measurement of partial γ-ray production cross-sections and k0 factors for radionuclides with chopped-beam PGAA

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