Comparative X Ray and Gamma Ray Study

A comparative study of X-ray and γ-ray spectroscopy on the planetary surface: A review

Group: P (Simhachala Rao, Proloy Taran Das, Premanshu Jana, Maitreya Maity)

Abstract: X- and γ- radiation are commonly observable in the vicinity of individual planets. These spectra contain different elemental lines. Spectroscopic analysis of multi channel elemental lines containing spectral data from high resolution X-ray (HRXRD) and γ-ray detectors operating in remote environments, gives us information about geo chemistries, surface morphology, mineralogy etc. Elemental compositions can be carried out from observations of these line emissions in energy range domain 0.2 keV TO 10 MeV. HRXRD studied determine the intensity of a spectral line at a particular energy level. To determine the intensity of a specific line at a particular energy level as well as new line, weak peak problems arise in high resolution γ-ray spectroscopic studies. It has been noticed clearly. Determining the specific spectral line from continuum is a very complex process due to variable irregular shapes of continuum and overlapping energy spaces of the large number of spectral lines.

Key words: X- and γ- ray spectroscopy, Mineralogy, XFS, Spectroscopic analysis

I. Introduction
Chemical composition and its distribution related to geological process on the planetary surface helps to understand the formation and dynamics of any physical body and planetary evolution. Remote sensing measurements and passive observations from orbital spacecraft is the best way to study on chemical composition and mineralogy of the planetary surface. X- and γ-ray spectroscopic study plays a significant role to understand the surface chemical composition of atmospheric body’s such as Mercury, Moon and asteroids [1].
Electromagnetic spectrum which consists of X-ray and γ-ray radiation that are observable in the vicinity of individual planets are originated from the flux of natural phenomena. Fluorescent soft X-rays...