1998 Symposium on Radiation Measurements and Applications
(Ninth in a Series)
May 11-14, 1998 The University of Michigan Ann Arbor
X-RAY SOURCE EMITS NOT ONLY X-RAYS BUT ALSO
LOW ENERGY ELECTROMAGNETIC RADIATION.
Dr. M.A. PADMANABHA RAO
Defence laboratory, Jodhpur-342011, India
In electromagnetic spectrum there lies two isolated range of X-ray and optical energies with no link between the two. In between, lies a hitherto unidentified range of energies, source of which is unknown. In this current situation fluorescent emission of light has been discovered from characteristic X-ray sources, and radioisotopes. The light intensities and nature of optical spectra observed from low energy ionizing radiation sources different from that of high energy sources could be explained well by an atomic phenomenon, termed 'Rao effect': Ionizing radiation loses energy (in eV level) while passing through charged space around an orbital electron, the loss of which reappears as electromagnetic radiation (in eV level), termed 'Bharat radiation'. The Bharat radiation with energies higher than that of far UV excites valence electron to emit fluorescent light. In radioisotopes, excited atom emits not only ionizing radiations but also Bharat, ultraviolet, visible and near Infrared radiations. Likewise an excited atom which emits X-rays (either bremsstrahlung or purely characteristic X-rays) also emits a spectrum of low energies including near infrared radiation by Rao effect.
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