Ionizing particle detection based on phononic crystals

Abstract

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 keV 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 based on PnC structure is achievable.

Locally Resonant Phononic Crystals at Low frequencies Based on Porous SiC Multilayer

“…For an acoustic wave propagating normally through a 1D multilayer structure from the left to the right as shown in Fig. 1, the wave equation is given by the following relation 16,34 where φ is the displacement and c j is the acoustic wave velocity in each layer. The subscript j = 1, 2 and 3 represents the layer type.…”

A doped-polymer based porous silicon photonic crystal sensor for the detection of gamma-ray radiation

“…It is then converted into an electrical signal using a photodiode or photomultiplier tube. 9 The second type of dosimetry is known as thermoluminescence. Thermoluminescence (TL) is defined as the emission of light from a solid as a result of heat following radiation exposure.…”

Phononic Crystals and Thermal Effects

“…Such mechanism has been implemented similarly in photonic crystals to slow light. Consequently, the produced waveguides in PnCs structures can be used in focusing and collimation of acoustic waves in medical ultrasound applications, sensors, and MEMS applications [2,[41][42][43][44].…”