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Title: Ionizing particle detection based on phononic crystals

Most conventional radiation detectors are based on electronic or photon collections. In this work, we introduce a new and novel type of ionizing particle detector based on phonon collection. Helium ion radiation treats tumors with better precision. There are nine known isotopes of helium, but only helium-3 and helium-4 are stable. Helium-4 is formed in fusion reactor technology and in enormous quantities during Big Bang nucleo-synthesis. In this study, we introduce a technique for helium-4 ion detection (sensing) based on the innovative properties of the new composite materials known as phononic crystals (PnCs). PnCs can provide an easy and cheap technique for ion detection compared with conventional methods. PnC structures commonly consist of a periodic array of two or more materials with different elastic properties. The two materials are polymethyl-methacrylate and polyethylene polymers. The calculations showed that the energies lost to target phonons are maximized at 1‚ÄČkeV helium-4 ion energy. There is a correlation between the total phonon energies and the transmittance of PnC structures. The maximum transmission for phonons due to the passage of helium-4 ions was found in the case of making polyethylene as a first layer in the PnC structure. Therefore, the concept of ion detection basedmore » on PnC structure is achievable.« less
Authors:
; ;  [1]
  1. Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef (Egypt)
Publication Date:
OSTI Identifier:
22494731
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 118; Journal Issue: 6; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCURACY; COMPOSITE MATERIALS; CRYSTALS; ELASTICITY; ELECTRONS; HELIUM 4; HELIUM IONS; ION DETECTION; IONIZING RADIATIONS; METHACRYLATES; NUCLEOSYNTHESIS; PHONONS; PHOTONS; POLYETHYLENES; RADIATION DETECTORS; THERMONUCLEAR REACTORS