Prompt gamma neutron activation analysis
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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
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