"It is not a wise choice!", this was the reaction of my father when I applied for nuclear medicine residency program 26 years ago. The old retired officer continued that hi-tech nuclear medicine is dependent on multiple advanced sections that may not be easily available especially in the developing countries. Now he is not alive to see that political misconducts have added fuel to the fire. Glo...

The chemical bond arises from a redistribution of electronic charge when atoms are brought in close proximity. The bond in a solid results from the superposition of charge densities of all atoms in the system. In an atom all electrons reside in their ground states at equilibrium. Only a few low lying excited states are typically accessed. The chemical bond in the solid consists of excited elect...

The application of nuclear energy in industry, medicine, and agriculture is increasing remarkably. Currently, nearly 10% of total world electricity generation comes from nuclear energy, and further growth in nuclear power generation is expected in coming decades. This expansion in the peaceful use of nuclear energy is likely to increase the risk of human exposure to low doses of ionizing radiat...

We calculate the second-order corrections to the atomic energy level shifts in ordinary and muonic deuterium due to virtual excitations of the deuteron which are important for ongoing and planned precise experiments in these systems. For light atoms a method can be used in which the shift is expressed as integrals over the longitudinal and transverse inelastic structure functions of the nucleus...

Mal.vin A. Ruderman DePaxtment of Physics, CoEunzbia University, Ne York, Nezo York 10027 (Received 29 November 1982) The cross section for exciting simple atoms by slowly moving magnetic monopoles is calculated. Includirg the effects of the monopole magnetic field on the atomic energy levels, an energy loss per unit density is obtained that is much larger than previous studies. For helium (1/p...

The search for resonant absorption of the Primakoff solar axions by Tm nuclei have been performed. Such an absorption should lead to the excitation of low-lying nuclear energy level: A+Tm →169Tm∗ →169Tm +γ (8.41 keV). The Si(Li) detector and Tm target placed inside the low-background setup were used for that purpose. As a result, a new restriction on the axion-photon coupling and axion mass was...