Abstract
A PRESENTATION ON X RAY PHOTOELECTRON SPECTROSCOPY

Sameena Mehveen and Afra Fatima*

ABSTRACT

X-Ray photoelectron spectroscopy is a technique which measures the elemental composition, empirical formula, chemical state and electronic state of the elements which exists within a material. It uses low energy monochromatic x rays to excite electrons from atoms near the surface of a sample. XPS systems are widely used in treatment of cancer and other chronic diseases. Iron oxide nano particles are accurately characterized and used in treatment to destroy the malignant cells. Technologically advanced XPS systems are highly preferred by researches and scientists in discovering drugs for chronic diseases such as cancer. This article includes the principle on which XPS works, brief description of origin and interaction of rays, its instrumentation, working and applications. X ray photoelectron spectroscopy is used in bioengineering to introduce targeted medicines and increasing adoption of XPS systems amongst researches and scientists. Growing use of XPS will boost industry growth.

Keywords: x-ray photoelectron, ultra high vacuum, photo ejected electrons, monochromatization, photo multiplier tube.


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