What is it about?

The radio-tracer was discovered by George de Hevesy in 1913. In 1990 Ambe from RIKEN, Japan argued that multiple and hundred tracers should be used to investigate natural system and they coined the term "Multi-tracer". In 2001, we launched concept of tracer packet, which can be defined as “a group of carrier-free radioactive isotopes of few elements, which have been produced together with an objective to study some particular physical, chemical or biological systems” .

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Why is it important?

Thet "tracer packet" is completely new concept coined by us. The details of "tracer packet for essential element" production is given in this paper


I am happy that International peers recognised this work and added as one of the reason for awarding me Hevesy Medal Award

Professor Susanta Lahiri
Saha Institute of Nuclear Physics

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This page is a summary of: , Journal of Radioanalytical and Nuclear Chemistry, January 2002, Springer Science + Business Media,
DOI: 10.1023/a:1021619815475.
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