Suitability of nanoparticles for gamma-ray applications

Darukesha, BHM and Radhakrishna, V and Rajanna, K (2023) Suitability of nanoparticles for gamma-ray applications. In: Applied Radiation and Isotopes, 191 .

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Abstract

While measuring the relative gamma-to-electron conversion efficiencies of nanoparticles by incorporating them into plastic scintillator and comparing the number of counts in pulse height spectrum for gamma-rays from 241Am, WO3, and PbO nanocomposites offered lesser scintillation counts than their unloaded counterparts. As investigated, these nanoparticles absorb a major portion of outgoing electron energy such that exiting electrons turn incapable of scintillating the medium. This observation hints why only selected species of nanoparticles successfully enhance the gamma-counting efficiency of plastic scintillators.

Item Type:	Journal Article
Publication:	Applied Radiation and Isotopes
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Electron energy levels; Gamma rays; Ionization; Lead oxide; Nanocomposites; Scintillation counters; Tungsten compounds, Counting efficiency; Electrons energy; Gamma-counting; Gamma-rays; Interaction of radiation with nanoparticle; Nanoparticle-loaded plastic scintillator; Pb-free; Pb-free gamma-ray shield; Plastic scintillator; Pulse height spectrum, Nanoparticles
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	02 Dec 2022 05:20
Last Modified:	02 Dec 2022 05:20
URI:	https://eprints.iisc.ac.in/id/eprint/77872

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