APPLICATION OF EPOXY RESIN IN INDUSTRY AND ITS GENERAL USE
Making a train of all the people present (like we used to do when we were children) and start running around the fire n all over place, with music turned out loud n yelling-shouting like tribal-indians.
compton effect (or compton scattering) happens when high energy photon interacts with a loosely bound electron in an atom's outer shell. this type of electron is sometimes called free electron. the interaction probability depends on the electron density of the material nearly independent of Z. high Z materials are consider to have free electron. so probability of compton interation is higher in high Z atoms and is proportional to mass density (kg/m3). photoelectric effect (PE) happens when high energy photon interacts with a tightly bound inner orbit electron and transfer all of its energy to the electron causing it to be ejected. outer shell electron will fill this vacancy and photons are produced. probability of PE is proportional to Z^3 and inversely proportional to E^3 by understanding the nature of interaction of photon with matter, we will know which effect will take place (or dominant) and not the other one. Si(Li) detector is a scintillation detector. the crystal is arranged in lattice pattern. when the crystal absorbed radiation, its electrons will be excited and jump from its initial state (in the valance band) into higher state and being trapped in the conduction band. these electrons will remain there. once u heated the detector with sufficient temperature, these electrons will release their energy and return to the ground state (valance band). the energy is released in the form of light. the light can be measured using photomultiplier tube and is amplified and displayed on a meter.
This Site Might Help You. RE: Gas piping leaks - Soap solution versus handheld gas detector? Recommendations? System won't hold 10 psi pressure even for 15 minutes. All valves are open with appliance stubs capped closed. Test gauge held pressure ok on small section of pipe to prove test procedure works on a good system. Clean black pipe and fittings assembled with RectorSeal pipe thread
