Prompt gamma neutron activation analysis
In this article, we will explore the fascinating world of Prompt gamma neutron activation analysis and all the implications this topic has in today's environment. From its history to its impact on society, through its different perspectives and applications, we will analyze in depth all the relevant aspects of Prompt gamma neutron activation analysis. In addition, we will delve into the latest research and discoveries on this topic, as well as the opinions of experts on the subject. Without a doubt, Prompt gamma neutron activation analysis is an exciting and constantly evolving topic, so this article aims to be a guide to better understand its importance and meaning today.
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Prompt-gamma neutron activation analysis (PGAA) is a very widely applicable technique for determining the presence and amount of many elements simultaneously in samples ranging in size from micrograms to many grams. It is a non-destructive method, and the chemical form and shape of the sample are relatively unimportant. Typical measurements take from a few minutes to several hours per sample.
The technique can be described as follows. The sample is continuously irradiated with a beam of neutrons. The constituent elements of the sample absorb some of these neutrons and emit prompt gamma rays which are measured with a gamma ray spectrometer. The energies of these gamma rays identify the neutron-capturing elements, while the intensities of the peaks at these energies reveal their concentrations. The amount of analyte element is given by the ratio of count rate of the characteristic peak in the sample to the rate in a known mass of the appropriate elemental standard irradiated under the same conditions.
Typically, the sample will not acquire significant long-lived radioactivity, and the sample may be removed from the facility and used for other purposes. One of the typical applications of PGAA is an online belt elemental analyzer or bulk material analyzer used in cement, coal and mineral industries.[1]
References
This article incorporates public domain material from Prompt-Gamma Activation Analysis (PGAA) Spectrometer. National Institute of Standards and Technology.
- ^ Harder, J. 2009, 'Material analysis for process control in cement plants', ZKG INTERNATIONAL, 6/7 - 2009, Volume 62, p. 64
External links
- https://www.nist.gov/manuscript-publication-search.cfm?pub_id=903948
- Video on the PGAA-NIPS at the Budapest Neutron Centre
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