MODELLING, SIMULATION AND TESTING OF A FEW POLARIZER COMPONENTS DEVELOPED AT INMAS, DRDO

Abstract

A proton MRI is usually used to image the human body. It works by detecting the signal from the hydrogen atom present in the human body. Since majority of the human body is made up of water molecules, the signal received by the MRI is of sufficient strength and can be analysed. But this is not the case with organs that does not has any presence of water molecules like the lungs. For such organs it is impossible to get images of sufficient clarity using the proton MRI. This is where hyperpolarized xenon MRI has importance. In a hyperpolarized xenon MRI, the patient is made to inhale hyperpolarized xenon and the signal from the noble gas is detected using the MRI. The signal from the hyperpolarized gas has an enhancement of the order of several thousand factors compared to thermally polarized gases. In this project we will be focussing on the modelling, simulation and testing of a few polarizer components developed at INMAS, DRDO.